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  • Offer Profile
  • SIEBTECHNIK TEMA is part of a globally operating group of companies with around 3,000 employees in more than 50 companies with a clear focus on the processing of mineral bulk solids as well as solid-liquid separation in the chemical and food industries. A company policy of controlled, self-financed growth, which has been consistently implemented in almost 100 years of company history, not only ensures a healthy economic base and an exceptionally good strategic position, but also an impressive worldwide presence. We see the challenges of the globalized world market as an opportunity for further positive corporate development.
Product Portfolio
  • Centrifuges

  • For best results in solids/liquid separation
    SIEBTECHNIK centrifuges provide cutting-edge technology, the most diverse variants, optional application-specific equipment, individual consultation and reliable support.

    Continuously increasing demands on quality of raw materials and final products in industry ask for modern technologies and precise control of production processes. You wish to achieve best results – we will assist you to achieve this!
    With an experience of nearly 100 years we are at home where exactly defined optimum results are involved. The decisive difference is based on innovative technological development and quality in each detail.

    For mechanical liquids separation continuously operating centrifuges are in nearly all cases the technically and economically best solution. They dewater also large amounts of solids to low final moisture at low space and energy demand and within short time.
    The solution for your production task: We provide already today scroll screen, pusher, sliding discharge or vibratory centrifuges, decanter centrifuges or combination machines for your individual requirements. From raw materials up to the refined final product, from smallest quantities in laboratory scale to bulk goods handling, separation by filtration or sedimentation, from temperature applications far below freezing point to several hundred degrees Centigrade. SIEBTECHNIK centrifuges are employed successfully in solids/liquid separation!

    Our machines are esteemed worldwide because of their extreme performance, reliability and cost effectiveness, they are functional, durable and take on key functions in many different industries.
      • Filtration centrifuges

      • All filtering centrifuges produced by SIEBTECHNIK operate continuously. These machines are employed in many applications and industries and are indispensable in efficient solids/liquid separation and solids washing. Whether for extremely fine solids or rough granulates, for gas-tight processes or hygienic applications, we will find the proper solution for your task requirements! Reliable function for closed processes in extremely confined space and for up to 8700 hours per year, that is what SIEBTECHNIK stands for.
          • CONTURBEX screen worm centrifuge

          • Universal machine for demanding tasks
            The SIEBTECHNIK CONTURBEX screen worm centrifuge is a machine concept for demanding tasks that has been proving its worth for decades.
            The CONTURBEX is a continuously operating filtration centrifuge for a broad range of applications. We achieve this flexibility by means of a centrifuge worm driven at a differential speed.

            Advantages
            • Continuous operation
            • Wide range of applications
            • Very quiet running characteristics, even with fluctuating feed conditions
            • Excellent product washing
            • Low specific costs
            • Advantageous design with shaft througholes on one side
            • Proven suitability for hygienic applications
            • Flexible drive concept
            • High machine availability
            • Minimum maintenance
            • Long service life
          • TURBOCASCADE sliding centrifuge

          • Centrifuge for granulates
            The TURBOCASCADE sliding centrifuge is a special unit that is used mainly for the dewatering of granulate-like particles.
            The main areas of application for this machine are polymer pellets that are especially carefully separated from the carrying water or from a suspension. Despite the short time spent by the products in the centrifuge end-moisture levels of up to 0.05 % are achieved.
            The TURBOCASCADE is a robust, powerful and efficient centrifuge. Installation and maintenance are outstandingly uncomplicated. Operating behaviour & mechanical features

            Advantages
            • Continuous operation
            • Product-safe operation
            • Product protection thanks to gas-tight design
            • Intensive separating action
            • Low specific energy consumption
            • Small space requirement
            • Low heat losses thanks to air circulation system
            • Optional trace heating and isolation
            • High machine availability
            • Minimum maintenance
            • Long service life
          • SHS pusher centrifuge

          • Application-focused to the last detail
            The SIEBTECHNIK SHS pusher centrifuge has established and proved itself as a modern high-performance machine in many areas of industry. It does its separating work in crystalline applications reliably. SIEBTECHNIK is also among the leading suppliers of pusher centrifuges in polymer products.

            The basis of this success is individual design variants that perform complex separating tasks. All SIEBTECHNIK pusher centrifuges guarantee very good results, amongst them low residual moisture, high solid yield and outstanding washing efficiency. Special consideration is given here to the protection of grains when processing solid matter. Particularly in the areas of feed and discharge where the product stream is accelerated and then slowed down again SIEBTECHNIK offers individual solutions.

            Advantages
            • Continuous operation
            • Optimum product washing
            • High solid yield
            • Low specific costs
            • Multi-stage rotor designs
            • Product feed and pre-dewatering
            • (Patent no. 195 46 019 C1)
            • Hohe Maschinenverfügbarkeit
            • Minimum maintenance
            • Long service life
          • HSG vibrating centrifuge

          • Master of solid quantity throughput
            With the SIEBTECHNIK HSG vibrating centrifuge you can continuously dewater the largest quantities of solid material in the world.
            Coarse salts, sea salt, potash, coal, sand or whatever: the HSG continuously dewaters the largest quantities of solid material reliably, fully automatically and self-regulatingly. Even with fluctuating feeds the HSG does its work at the lowest possible energy cost.

            Advantages
            • Continuous operation
            • Reduced maintenance costs
            • Stable vibration behaviour
            • High solid-material throughput
            • High machine availability
            • Minimum maintenance
            • Long service life
        • Sedimentation centrifuges SHORTBOWL, TWINCONE, DZ or TS Decanter centrifuges

        • Separation – the common objective
          SIEBTECHNIK Sedimentation centrifuges, continuously working solid-wall scroll centrifuges are unique, functional and versatile.
          As straight sedimentation centrifuges they provide highly efficient separation of even the finest solids and near complete clarification of the liquid phases.
          Whether for minimum or maximum throughput, lowest or highest temperatures, of gas-tight design, chemical resistance or explosion protection – we provide an individual solution.
          The three decanter types SBD, DZ and TS with drum diameters provide the user by customer-oriented individual designs with the optimum solution for nearly all processing sectors. As the sole manufacturer we provide designs with USDA approval, strict separation of of process and driving unit, and also increased operational reliability by circulating oil lubrication of all bearings, incl. gear unit and scroll bearing. With the special-type SIEBTECHNIK TWINCONE even washing and separate disposal of washing liquid is possible.
          The wish to continually reduce the dirt load in the waste water for sustainable protection of our environment (ZLD – Zero Liquid Discharge) and the demand from industry for maximum efficiency of production systems, for instance plastics production by suspension polymerisation, make sedimentation centrifuges belong to the most frequently used separating units.
            • Decanter centrifuge

            • Individual, functional and versatile
              The SIEBTECHNIK decanter centrifuge is a continuously operating solid-bowl worm centrifuge in tunnel or pedestal bearing design. Our decanters are individual, functional and versatile. They offer highly efficient separation of even the finest solid materials together with nearly complete clarification of the liquid phase.
              The wish to further and further reduce the pollutant levels in waste water for the lasting protection of our environment (ZLD – zero liquid discharge) and demand by industry for production shops to be as efficient as possible make the decanter one of the most frequently used machines.
              Whether it’s highest or the lowest throughputs, lowest or highest temperatures, gas-tight design, chemical resistance or explosion protection – we offer a solution.

              Advantages
              • Continous operation
              • Wide range of applications in all areas of industry
              • Flexible drive concept
              • High machine availability
              • Minimum maintenance
              • Long service life
            • TWINCONE decanter centrifuge

            • Optimum washing in the decanter
              The SIEBTECHNIK TWINCONE decanter centrifuge is a decanter centrifuge with a second bowl cone fitted downstream.
              The solid matter is separated and concentrated by sedimentation in the first bowl cone. The second bowl cone has a larger diameter, so a lower head of solid matter forms ahead of the worm channel. On this second bowl cone the product can be washed and the washing liquid drained off separately from the mother liquor.

              Advantages
              • Continuous operation
              • Washing with separate separation of mother liquor and washing liquid
              • Wide range of applications in all areas of industry
              • Flexible drive concept
              • High machine availability
              • Minimum maintenance
              • Long service life
              • Optimum adjustment of clarification and dewatering
            • SHORTBOWL decanter centrifuge

            • As long as necessary – with enormous advantages
              The SHORTBOWL decanter centrifuge is designed overhung-mounted. Because of the special geometry of the rotating parts it is highly suited for the separation of fine solid particles having a specific gravity that is very different from the liquid phase.
              The design principle with its strict separation of process and drive unit makes this decanter ideal for applications in pharmaceutical or food manufacturing operations (CIP standard). This machine concept also means that the decanter can be used in high-temperature areas or for pressure-tight processes.

              Advantages
              • Continuous operation
              • Overhung-mounted
              • Short design
              • Free and unobstructed discharge of the solid matter from the product housing
              • High-temperature versions
              • USDA versions
              • Better product washing than in normal decanters
              • Flexible drive concept
              • High machine availability
              • Minimum maintenance
              • Long service life
          • Combination centrifuges CONTHICK and TURBOSCREEN decanters

          • “Beyond the Limits“
            SIEBTECHNIK has combined for solids separation from liquids and also for dewatering of solids the particular advantages of sedimentation and filtration into combination centrifuges.
            By employing our combination machines the separating efficiency is increased, compared with filtering centrifuges. In addition, also the efficiency of solids dewatering is increased and, therefore, the energy costs of the drying process are reduced. In case of an existing system it is possible to increase production capacity by exchanging a conventional machine against a combination machine.

            All SIEBTECHNIK combination centrifuges are adapted individually to the production environment and plant requirements.
            In the combination machines the solids are separated by sedimentation in a solid-wall section. After that it is possible to wash the product in the screening section and to dewater it up to the severable dewatering limit. The selection of the type of machine is governed by machine parameters, g-number, holding time and cake height.
            These combination machines have successfully operated in numerous industries and various applications. In the polymer industry this includes materials like polyoxymethylen (POM) and also copolymers and biopolymers. Regarding organic compounds amino acids, carboxylic acid derivates and in the foodstuff industry mono sodium glutamate (MSG) are processed.
              • TURBOSCREEN screen decanter

              • The most advanced development in solid-liquid separating technology
                The TURBOSCREEN screen decanter is one of the most advanced developments in solid-liquid separating technology and has considerable design and technical process advantages over the well-known centrifuge designs.
                On solid bowl screen centrifuges used up until now the screening section is connected to the small diameter of the solid bowl cone and is dimensionally identical. This design arrangement has the disadvantage of offering a small volume and so a high solids capacity with reduced centrifugal force in precisely the dewatering section of the centrifuge.

                Advantages
              • CONTHICK screen decanter

              • Efficient separation plus pre-thickening
                The SIEBTECHNIK CONTHICK screen decanter is a combination machine consisting of a solid bowl in the product feed zone and a screen bowl fitted downstream.
                Solid materials are separated by sedimentation in the solid bowl and thickened. The product can then be washed and dewatered up to the mechanically separable dewatering limit. A further special feature of the CONTHICK is its overhung mounting. This design enables easy cleaning and fast access to the parts in contact with the product. As a result, maintenance costs and maintenance times are considerably reduced.
                The second stream of liquid is drained off through a separate drainhole.

                Advantages
                • Continuous operation
                • High yield/minimum loss of solid matter
                • Excellent washing results
                • Mother liquor and washing liquid can be separated separately from each other
                • Little residual moisture
                • Easy cleaning
                • Easy replacement of screens without dismantling the worm
                • Flexible drive concept
                • High machine availability
                • Minimum maintenance
                • Long service life
            • Laboratory centrifuges

            • High-performance centrifuges for the laboratory
              For tests to laboratory standard and for the preparation of small quantities SIEBTECHNIK offers two different laboratory centrifuges.
                • CENTRIFLEX

                • The SIEBTECHNIK CENTRIFLEX centrifuge is a laboratory centrifuge designed for many different uses.

                  The CENTRIFLEX can be used to test the separability of suspensions in the centrifugal field. The choice of a type of centrifuge and the dimensional scaling of the centrifuge are possible on the basis of such laboratory tests. With our laboratory centrifuge filtering and sedimenting centrifuges as well as continuous centrifuges or centrifuges with batchwise operating mode can be simulated by appropriate tests. For this suitable beaker inserts are used in the centrifuge.
                  The CENTRIFLEX can also be used for many kinds of preparatory work.
                  When fitted with the appropriate accessories, they can be used for filtration, washing, clarification, for the continuous separation of two liquids and for the preparation of emulsions.
                  • Multifunctional laboratory centrifuge
                  • High g force (6000 g)
                • CENTRILAB

                • The CENTRILAB was developed on the basis of the CENTRIFLEX laboratory centrifuge and is used solely for testing the separability of suspensions in the centrifugal field. The choice of a type of centrifuge and the dimensional scaling of the centrifuge are possible on the basis of such laboratory tests. Practically every type of centrifugal separating apparatus can be tested and/or simulated very easily with the CENTRILAB, using a small quantity of material.

                  Unlike the CENTRIFLEX the CENTRILAB stands out for its considerably shorter starting and stopping times. It is possible to accelerate the product to be tested to maximum g force in under a second. In this way continuous centrifuges, which as a rule are operated with short material dwell times, can be very precisely copied in the test or in simulation.
                  • Portable test centrifuge
                  • Extremely short start/stop times
              • Sample taking and Sample preparation systems

              • Continuously increasing demands on quality of raw materials and final products in industry ask for modern processing techniques and monitoring of product quality.
                SIEBTECHNIK does not only have a wide-ranging product portfolio, but also a staff of employees with solid expert knowledge and worldwide and industry-specific experience.
                In the field of industrial sample taking and sample preparation of bulk materials and suspensions of all kinds we are planning and produce sample taking and preparation plants tailor-made for your requirements.

                Our product portfolio includes:
                • Representative sample taking from the moving product flow, e.g. from conveyor belts, from chutes and slides and from piping systems
                • Fully automatic sample preparation by means of various crushers, mills and separating devices down into the micrometre range
                • Fully automatic sample transportation by air tube systems
                • Analysis of physical quantities like grain size, tumbler strength etc.
                • Chemical analysis, such as RFA / RDA, moisture, …

                For each task SIEBTECHNIK can provide the appropriate solution or will create it jointly with you. Improve the precision of your analyses with our technology, because analysis commences with taking the sample.
                SIEBTECHNIK machines are also operator friendly, uncomplicated in maintenance and, in particular, future-proof – thanks to our specialised service personnel and first-class spare and wear parts service, also for heritage machines.

                Advantages of modern sample taking and sample preparation systems:

                • Regular extraction of laboratory samples, independently of weather or time, complying with the current ISO standards as the basis for reproducible and accurate product analytics
                • Representative automatic sample taking – without interrupting conveyance – from the moving material flow
                • Provision of retained samples, permitting repeated analysis in case of anomalies
                • Smoothing-out of material flow and grain size in by-pass flow of sample preparation plants for increasing the accuracy of online analysing devices
                • Reduction in work load for obtaining the sample material and improvement of work ergonomics by automated sample preparation
                • Improvement of safety at work because hazardous interventions of personnel into material flow are omitted and are replaced by automated sampling devices.
                  • Sampling Equipment for Conveyor Systems

                      • Slotted-vessel samplers

                      • The slotted-vessel sampler is implemented for sampling materials at the belt head or in the downpipe. This sampling principle is based on a slotted-vessel with defined intake slot vertical to the dropping material stream that records the material stream’s entire thickness at a constant speed.

                        Advantages
                        • Simple and low-maintenance design
                        • High tolerance of unwanted materials in the product stream
                        • Application-specific drives for the slotted-vessel carriage using steel chains, rubber-block chains or toothed belts
                        • Travel drives to be arranged individually to suit local conditions
                        • Complete integration of the sampler into belt transfer stations
                        • Variable travel speed of the sampler by means of frequency inverter
                        • Large slotted-vessel volume up to 1000 dm³
                      • Operating Behavior & Mechanical Characteristics

                      • The hammer sampler is implemented for sampling materials from belt conveyors. The hammer sampler guides this sampling frame, which is closed on one side, in a circular movement through the material stream as it moves along the belt. In doing so it automatically removes from the belt a representative cross-sectional sample corresponding to that of the sampling frame.

                        Advantages
                        • A simple, low-maintenance and very operationally reliable construction
                        • Reliable removal of the fine contents from the belt bottom by the integrated brush and scraper
                        • No conversion from 3-piece to 5-piece roller stand necessary
                        • Hardly any expenditure for changes to existing belt installations for retrofitting
                        • Reliable monitoring of the position of the sampling hammer
                        • Reliable stopping of the sampling hammer by means of the disk brake fitted to the geared motor
                        • Lower primary sample quantities compared with slotted-vessel samplers
                        • Available for all belt widths, speeds and conveyor performances usual in the market
                    • Sampling Equipment for Downpipes

                        • Screw sampler, Type SPN

                        • Operating Behavior & Mechanical Characteristics
                          The screw sampler belongs to the samplers that remove a selective sample from the material flow. To be able to secure sufficient representativeness, the product flows to be sampled must be homogeneous in terms of the different grain sizes. Sampling is carried out by means of a sample collecting pipe protruding in the material flow.

                          This sample collecting pipe is provided with openings, into which the material can drop permanently. At the time of sampling, the screw-conveyor first of all empties the sample collecting pipe in the direction of the material flow. After a defined emptying time, the screw reverses and conveys the sample material dropped into the sample collecting pipe to a pipe socket outside the principal pipe.

                          Advantages
                          • Sampling from the material stream
                          • Low-wear and low-maintenance design
                        • Clinker sampler, Type KPN

                        • Operating Behavior & Mechanical Characteristics
                          Together with the piston sampler, the clinker sampler ranks amongst those samplers removing a selective sample from the material flow. For this purpose, a sampling spoon, which is filled with sample material over a defined period of time, is run into the product flow pneumatically. When the sampling spoon is drawn back, it is removed inside the sampler housing by a piston and the material sample pre-classified over a rigid sieve grid. The fine material thus obtained can be taken over for further analysis at a pipe socket. The coarse parts are taken over at a further pipe socket and fed to the principal material flow again.

                          Advantages
                          • Sampling from material flow
                          • Low-wear and low-maintenance design+
                        • Piston sampler, Type KoPN

                        • Operating Behavior & Mechanical Characteristics
                          The piston sampler ranks amongst those samplers which remove a selective sample from the material flow. To be able to secure sufficient representativeness, the product flows to be sampled must be homogeneous in terms of the various grain sizes. Sampling is carried out by means of a sample collecting pipe protruding in the material flow. This sample collecting pipe is provided with an opening, into which the material can drop permanently. At the time of sampling, a pneumatically actuated piston is pressed from the waiting position in the direction of the material flow by the sample collecting pipe. The sample collecting pipe is emptied over the material flow to then, on the return, take along the sample material just dropped in. The sample material can be taken over at a pipe socket outside the main pipe.

                          Advantages
                          • Sampling from the material stream
                          • Low-wear and low-maintenance design
                        • Downpipe slot vessel sampler, Type FLPN

                        • Operational behaviour and mechanical characteristics
                          Representative sampling is carried out by a slotted vessel that is guided by a pneumatic linear drive via a rod at constant speed through the complete chute cross-section. The multiple sealing of the rod bushing and the enclosure of the drive mean that the drive is not directly exposed to the product and thus remains practically free of wear. The passage speed of the spoon can be adapted to individual requirements by adjustable valves on the drive.
                          After the passage of the spoon, the sampling spoon is turned through the product flow via the sample discharge chute and thus emptied. The rotary movement is initiated mechanically by means of adjustable stops and therefore does not require any further drive.

                          Advantages
                          • Representative sampling from product flow
                          • Low-wear and low-maintenance design
                        • Downpipe swivel sampler, Type FSPN

                        • Operating Behavior & Mechanical Characteristics
                          Representative sampling is carried out by a slotted vessel that is swivelled through the material flow in a circular movement at a constant speed. While the slotted vessel is rotated through the material flow, a sample is removed from the material flow and collected in the slotted vessel. This sample is subsequently emptied by the movable base over the sample discharge chute. After being completely emptied, the slotted vessel swivels back into the waiting position. With this sampler as well, the waiting position lies outside the principle material flow to protect the slotted vessel from wear.

                          Advantages
                          • Representative sampling from product flow
                          • Low-wear and low-maintenance design
                        • Downpipe/ slurry sampler, Type FPN/TPN

                        • Operating Behavior & Mechanical Characteristics
                          Representative sampling is carried out by a sample chute that is guided in a circular movement through the material flow at a constant speed. While the sample chute is rotated through the material flow, a partial material flow is continuously separated and led off. The thus obtained sample material is collected via a pipe socket and further processed. While the waiting position of the sample chute between two samplings is inside the material space, it is, however, outside the principle product flow, so that direct contact between the sample chute and material flow is prevented and wear on the sample chute reduced.

                          Advantages
                          • Representative sampling from product flow
                          • Low-wear and low-maintenance design
                          • Also available as slurry sampler for suspensions
                      • Sampling Equipment for Suspensions

                          • Slotted-vessel sampler for suspensions & slurries

                          • Operating characteristics & mechanical features
                            This slotted-vessel sampler is used for taking samples of slurry at free pipe, chute or sump outlets. This sampling principle is based on a slotted vessel that has a specified inlet gap set perpendicular to the inflow of material and can cover the full thickness of the slurry flow at a constant speed.
                            The slotted-vessel sampler moves from one of its stand-by positions, through the suspension flow and stops in the opposite position. As the sampler moves through the product flow at a constant speed, a representative sample is taken. The sample taken is diverted away and taken up in a trough. The sampler’s stand-by position is outside the slurry flow.

                            Advantages
                            • Sampling from material flow
                            • Wear- and maintenance-free design
                          • Downpipe/ slurry sampler, Type FPN/TPN

                          • Operating Behavior & Mechanical Characteristics
                            Representative sampling is carried out by a sample chute that is guided in a circular movement through the material flow at a constant speed. While the sample chute is rotated through the material flow, a partial material flow is continuously separated and led off. The thus obtained sample material is collected via a pipe socket and further processed. While the waiting position of the sample chute between two samplings is inside the material space, it is, however, outside the principle product flow, so that direct contact between the sample chute and material flow is prevented and wear on the sample chute reduced.

                            Advantages
                            • Representative sampling from product flow
                            • Low-wear and low-maintenance design
                            • Also available as slurry sampler for suspensions
                        • Splitter

                            • Rotary pipe divider

                            • Operating Behavior & Mechanical Characteristics
                              With the rotary pipe divider, the uniformly added material stream is distributed into a funnel-shaped cone via a sloped rotating pipe.
                              The cone has recesses in the divider circle. The product passing through this recess is designated the “sample”, the material collected via the funnel the “rejects”.
                              The openings for the sample can be closed by means of a slide plate, resulting in a variably adjustable dividing ratio.
                              The rotary pipe divider can be implemented for easily pourable material not tending to plug. This divider can be cleaned through large inspection openings

                              Advantages
                              • Variably adjustable dividing ratio
                              • Low-wear and low-maintenance design
                              • Designed with increased accessibility, so minimum cleaning time
                            • Rotary divider

                            • Operating Behavior & Mechanical Characteristics
                              The rotary divider has a vertically appointed disk provided with openings which is rotated by a motor.
                              The sample material is uniformly fed to the divider via a dosage unit and guided onto the rotating disk. It passes through the opening in the disk as a “sample” or is deflected by the disk as a “reject”.
                              The dividing ratio (1:2 up to 1:130 depending on the type concerned) in this divider can no longer be varied after production due to the simple design.
                              The divider is used for dividing dosable, pourable and hardly caking materials.

                              Advantages
                              • Low-wear and low-maintenance design
                            • Turnstile divider

                            • Operating Behavior & Mechanical Characteristics
                              The turnstile divider is a divider that, with slight modifications, can be used for practically all products from cokes in lumps, plugged fine coal right up to super-fine-milled quick lime. The sampled material can be transferred to the divider’s charging area without prior dosing, since it is thoroughly mixed and dosed prior to the dividing stage proper by the inwardly-directed raking arm.
                              The material transferred to the middle of the divider plate via the first raking arm is now uniformly transported in a spiral movement outwardly over the edge of the plate by a second raking arm and drops onto a conically worked sheet housing, which is partly recessed. The product dropping onto this recess is designated the “sample”.

                              Advantages
                              • Very reliable operation even with wet and sticky products
                              • Low-wear and low-maintenance design
                              • Designed for increased accessibility, so minimum cleaning time
                              • Variably adjustable dividing ratio
                              • By arranging two dividers one behind the other dividing ratios of well over 1:1000 can be achieved.
                          • Sample Collectors, Sample Dryer and Air slide sampler

                              • Sample collectors

                              • Should samples be collected only at protracted time intervals, we offer the possibility of keeping them in so-called sample collectors of the most varying sizes until they are collected.
                                The sample bottles are placed in a roundabout and are turned to the next empty bottle when filled.
                                In the extensive range, you will find machinery and devices for transporting the samples, such as space-saving and encapsulated special belts, for screen analysis, drum tests, and further laboratory instruments for preparing the obtained samples for analysis.

                                Advantages
                                • Large selection of sizes
                                • Compact dimensions
                                • Can be optimally integrated in existing production processes
                                • Collects samples up until they are collected
                                • Low-wear and low-maintenance design
                              • Sample dryer

                              • Operational behaviour and mechanical characteristics
                                The TR500 sample dryer is used for the chargewise drying of wet bulk materials. Drying of the wet bulk material is done by means of a heating plate that is made to shake by an unbalance motor. The arrangement of the unbalance motor causes the material to be continuously turned over throughout the drying process and so repeatedly presented to the hot plate. Heat is fed to the hot plate by means of thermal oil that is heated up by means of a temperature control unit with a heat range of between 50 °C and 180 °C.

                                The material to be dried is fed onto the middle of the shaking, heated dryer and spread over the heating plate. The dryer is emptied by changing the direction in which the unbalance motor is rotating, so changing the shaking movement and enabling the dried bulk material to be removed.
                              • Air slide sampler

                              • Operating Behavior & Mechanical Characteristics
                                Air slide sampler rank amongst those samplers that remove a selective sample from the material flow of an air slide conveyor system. To be able to secure sufficient representativeness, the product flows to be sampled must be homogeneous in terms of the conveyor width. Sampling is carried out by a sample collecting pipe protruding in the material flow that is provided with openings. Normally, these openings are turned in the direction of conveyance and close against a sealing gasket. At the time of sampling, the sample collecting pipe with its openings is turned against the direction of conveyance, so that sampling material can flow in. The sample material thus entered is discharged downwards through the air slide conveyor system by means of the sample collecting pipe.

                                Advantages
                                • Sampling from the material stream
                                • Low-wear and low-maintenance design
                            • Automation

                            • Continuously increasing demands on quality of raw materials and final products in industry ask for modern processing techniques, more accurate control and optimisation of production processes and, finally, monitoring of product quality.
                              Machines and plant systems developed by us assist our customers to increase productivity and reliability of analyses by working quickly with reliable results. Our optimisation solutions optimise material flow and improve operating and process reliability, because individual errors in production are minimised and hazardous interventions of personnel into into the production run are eliminated.
                              SIEBTECHNIK can provide to customers a vast variety of machines and systems for automation, the various components can be supplied individually, or we can act as a system provider in the field of sampling and processing.

                              Advantages of SIEBTECHNIK automation solutions:
                              • Optimisation of production processes
                              • Improvement of safety at work and process reliability
                              • Increased analytical reliability
                              • Minimisation of individual errors
                              • Reduction of hazardous intervention into production flow
                              • Representative, reproducible results
                                • Automatic Moisture Analyser System (AMAS)

                                • This fully automatic system can determine the moisture content of bulk-material samples of up to 6 kg in weight. For this purpose, the AMAS can be integrated in an automatic sampling unit, thereby allowing the analysis to be carried out immediately after the sample has been taken from the material.
                                • Automatic screening and strength testing system (ASST)

                                • The automatic screening and strength testing machine is used for fully automatic grain size analysis and determination of the impact resistance of sinter, coke and other dry bulk materials.
                                • Automatic milling and pressing system AMP

                                • With the fully automatic milling and pressing system, bulk material samples can be transferred into test specimens for an XRF or XRD analyser.
                                  We can offer you a complete solution from the sampling plant and pneumatic tube system right up to automatic sample preparation, including all the machinery and equipment needed.
                              • Sampling, Crusher & Laboratory Equipment

                                    • Pneumatic tube system

                                    • Pneumatic tube system – fully automatic transportation of bulk material samples
                                      The fully automatic transportation of bulk material samples to the laboratory is undertaken by our pneumatic tube systems designed and produced individually for your physical circumstances.
                                      The sample material delivered from the samplingsystem is automatically filled into a carrier and subsequently transported to the required position by a tube system that may well be several hundred metres long. There, the carrier is automatically opened, and the sample discharged.

                                      Advantages
                                      • Fully automatic transport of your samples
                                      • Individually adapted to suit your space conditions
                                      • Can be combined with automatic sample processing systems
                                • Comminution Equipment

                                • For size reduction of differently hard products we can provide a selection of different comminution equipment: hammer mills, double-roller and single-roller mills, jaw crushers, cone crushers, continuously working vibrating disc mills and eccentric vibrating mills. From crushing to milling down to analysis fineness, we do have in our program the machine fitting your needs.

                                  When selecting the best suitable size reduction unit the product and the quality characteristic to be analysed are always the decisive factors.
                                    • Eccentric vibrating mills

                                    • The ESM has convincingly proven its performance in the most varied applications and feed materials in the field of mechano-chemical activation and micro-grinding,
                                      Only the single-tube eccentric vibrating mill of SIEBTECHNIK GmbH executes, through an exciter unit provided outside, inhomogeneous movements, comprising elliptical, circular and linear vibrations. The upshot is a high degree of loosening of the mill filling with very high impact load on the material to be ground, particularly with large amplitudes. The high specific energy input with a high degree of loosening of the mill filling is a decisive benefit of the single-tube principle, which, caused by the design, also makes a clear reduction in the mill mass and thus in the drive energy possible.

                                      Advantages
                                      • This modular design of the machine offers enormous advantages particularly with larger machines:
                                      • The mill can be split up into small units for transport and installation
                                      • The power train fitted completely on the outside of the mill body is freely accessible once the protective guards have been dismantled
                                      • All drive components and particularly the compact exciter units can be easily exchanged in case of maintenance, whereby downtimes can be considerably reduced compared to circular-oscillating mills
                                      • Furthermore, the grinding vessel modules considerably simplify the change of the grinding media and wear lining
                                      • The grinding vessel modules enable the grinding vessel lengths to be adapted to individual performance requirements or to changed performance requirements in the course of operation
                                    • Drum mills

                                    • The drum mills are used for fine and ultra-fine grinding of brittle materials. Discontinuous operated drum mills make, in addition to size reduction, homogenization of the material to be ground possible.
                                      Drum mills have a horizontal grinding drum rotating around a fixed center of rotation. Located in this cylindrical working space is a grinding-media filling, which is tumbled by the rotating grinding drum. The material fed is pulverized by the freely moving grinding-media primarily through pressure, impact and shearing action. Balls or Zylpebs are usually used. For special applications, steel rods can also be implemented in appropriately modified drum mills.

                                      Advantages
                                      • Low-wear and low-maintenance design
                                      • Can be used for thermically sensible or very hard product
                                      • Grinding finenesses stepply adjustable
                                      • End finesses of max. less than 2 mm
                                      • Optional separating device
                                    • Cone crusher

                                    • Cone crushers, slow-operation size reduction machines, are perfectly suited to produce cubic particle or to reduce heat-sensitive materials or very hard materials (such as corundum, ferrous Silicium, ore iron ores).

                                      Operating Behavior & Mechanical Characteristics
                                      The feed material is crushed between the slowly rotating cone and the static outer grinding ring. By rotating the feed funnel, the size of the slot between cone and ring can be adjusted as required, therefore achieving the fineness of material requested. Maximum final particle sizes of < 2 mm can be achieved due to the tooth system of the fine cone.

                                      Advantages
                                      • Low-wear and low-maintenance design
                                      • Can be used for thermically sensible or very hard product
                                      • Mill finenesses stepply adjustable
                                      • End finesses of max. less than 2 mm
                                      • Optional separating device
                                    • Roller Mills

                                    • Single-roller mill
                                      With the single-roller mills, brittle, soft to medium-hard materials can be reduced in size with a reduction ratio of approx. 1:5 to 1:5.

                                      The stepped arrangement of the crushing jaws on the crushing wall enables any material rolling off being minimised, so that, compared to the double-roller mill, coarser material can be drawn in.

                                      Double-roller mill
                                      With the double-roller mill, all brittle materials, such as, for example, ores, clinker, limestone, gypsum, aluminium oxide, glass, … can be reduced in size up to a Mohs’ hardness of approx. 8.5 with a reduction ratio from 1:2 to 1:5.

                                      Advantages

                                      Advantages of SIEBTECHNIK single-roller mills:
                                      • Low-wear and low-maintenance design
                                      • High throughput
                                      • High degrees of comminution
                                      • Also available in laboratory design
                                      • Overload protection
                                      • Protection against smaller foreign bodies
                                      • Fineness of end product adjustable by means of threaded spindles

                                      Advantages of SIEBTECHNIK double-roller mills:
                                      • Low-wear and low-maintenance design
                                      • High throughput
                                      • High degrees of comminution
                                      • Also available in laboratory design
                                    • Jaw crushers

                                    • Jaw crushers are used for coarse grinding brittle, medium-hard to hard materials up to a Mohs’ hardness of approx. 8.5. Here reduction ratios of up to 1:100 are possible depending on the actual model concerned.

                                      The crushing jaws are executed by us in two versions: In a laboratory model with integrated control system, feeding funnel and collecting tank, and a version for installation in plants. Omitted from this latter version are the feeding funnel, collecting tank and the control system.

                                      Advantages
                                      • Fixed crushing jaw designed as a door, so that this door can be opened without tools, and fast and easily controllable cleaning of the crushing chamber is possible.
                                      • Reduction ratios of 1:100 and more, with fineness of the finished products of d85 < 2 mm, are possible depending on the particular type concerned.
                                      • The infinitely variable crushing opening can be easily read off the scale attached to the housing and facilitates zero setting depending on the wear of the crushing jaws.
                                      • Crushing jaws that can be turned through 180°, enabling further utilisation in the principal wear area of the smallest opening, and thus almost halving the costs of parts subject to wear.
                                      • Product contamination is reduced by sealed bearings lubricated for life for Types EB 50×40 to EB 200×125.
                                      • Tamper-proof feeding funnel with connection flange for a dedusting plant provided by the customer.
                                      • The laboratory version is designed as a ready-for-connection model with a control system integrated into the housing.
                                      • This also contains a safety monitor for the sample collecting box.
                                      • Crushing jaws are available in high-carbon steel casting, tungsten carbide, zirconium oxide or stainless steel.
                                    • Hammer- and hammer impact mills

                                    • Hammer- and hammer impact mills are suitable for crushing soft to medium hard materials (degrees of hardness according to F. Mohs 2 – 5). For example: agglomerates, coal, limestone, gypsum and slag.

                                      They are designed for large through-put volumes and trouble-free operation.

                                      Hammer impact mills are particularly suited very coarse material for whilst attaining a high degree of comminution with large through-puts.

                                      The hammer mill HM 1 with the collection box in the base frame is for the grinding of small batches, as normally handled in laboratories.

                                      In a special execution that mill can also be used for the grinding of laboratory samples of metal filings.

                                      Advantages
                                      • Low-wear and low-maintenance design
                                      • High throughput
                                      • High degrees of comminution
                                      • Also available in laboratory design
                                      • Well accessible and easy to clean
                                      • Replacing or re-positioning of the hammers also possible without the need to dismantle
                                  • Control screening machines

                                  • Impurities contained in powders and suspensions (for example screws, scraps of paper or cleaning rags), can, if they remain undetected, lead to expensive repairs of machines and equipment or may even cause shut-down of production.

                                    Therefore you should protect your sensitive production processes with SIEBTECHNIK control screening machines, which reliably remove impurities and agglomerates from powders and suspensions.
                                      • Suspension control screening machine SKS

                                      • The control screen SKS is used for safely removing foreign bodies such as bolts, paper towels, rags or undesolved agglomerates from suspensions. This machine is supplied as a closed system which enables for example, control screening of highly viscose products under pressure or products containing solvent without releasing any vapours.
                                        Main area of use for this machine is control screening prior to packaging, loading or further handling, of products in the building, paint, chemical, food and pharmaceutical industries.

                                        Advantages
                                        • Low-wear and low-maintenance design
                                        • No mechanical cleaning of slotted screening basket required
                                        • Easy cleaning of container
                                        • No disturbing edges
                                        • Minimum effort required for changing the screen insert
                                      • Control screening machine PERFLUX

                                      • Operating Behavior & Mechanical Characteristics
                                        Our new PERFLUX-generation consists of a highly stiffened aluminium frame, which is put into gyratory motions by the attached unbalance motor.
                                        This gyratory motion allows a higly efficient and effective screening process with only one motor, thereby keeping operating cost low. Due to its compact dimensions, the machine can easily be integrated into any production process.

                                        Advantages
                                        • low-wear and low-maintenance design
                                        • compact dimensions
                                        • can be optimally integrated in existing production processes
                                    • Laboratory Equipment

                                        • Analytical Screening

                                            • Large Analytical Screening Machine GAS

                                            • The large analytical screening machines are designed for analyzing grain sizes above 40 mm to generate a sufficient material layer to achieve a representative screening analysis.
                                              For this purpose we have machines with sieve areas of 500 x 500 mm and 1000 x 1000 mm.

                                              Operating Behavior & Mechanical Characteristics
                                              The GAS is equipped with a maintenance free double eccenter motor which generates linear vibrations vertically to the screen surface.
                                              The amplitude can be infinitely adjusted by re-positioning the eccentric weights on the motor when the machine is not in operation.
                                              The test sieve set is rigidly held on the vibrating table by the tensioning device, which can also be supplied as a lifting and tilting device.
                                              This lifting and tilting device makes emptying the test sieves easier as it can be lifted by a hoist and the lowest test sieve only requires tilting for emptying.
                                              GAS 500 and 1000 can be used as vibrating tables without the test sieve set.

                                              Advantages
                                              • Low-wear and low-maintenance design
                                              • stepplessly adjustable
                                            • Analytical Screening Machine ASM

                                            • Our ASM analytical screening machines are gravity-screening machines. They are used for the automatic separation of all screenable bulk materials into individual grain fractions for the reproducible determination of grain size distributions.

                                              We offer the ASM in two designs: ASM 200 and ASM 400.

                                              Advantages
                                              • Low-wear and low-maintenance design
                                              • Fast, precise and reproducible grain-size analysis
                                              • Operator friendly
                                              • Dry and wet-screening possible
                                            • Airjet screen SLS

                                            • SLS 200 is intended for the requirements of modern laboratories in respect of a quick, exact, and reproducible grain-size analysis of all dry materials for sieving.
                                              The range of analysis covers grain sizes of approx. 20 to 4000 µm, the sampling quantity amounts to approx. 100 g depending on the density of the material.
                                              Due to a specially developed pre-warming of the air jet it is also possible to use the SLS 200 for hygroscopic materials.

                                              Advantages
                                              • Low-wear and low-maintenance design
                                              • fast, precise and reproducible grain-size analysis
                                              • Can also be used for hygroscopic product
                                              • Extra-ordinary good dispersion
                                            • Analytical Screening Machine LAVIB

                                            • Analytical Screening Machine LAVIB
                                              The LAVIB 300 is a screening machine that produces horizontal circular vibrations, suitable for analytical sieves up to 300 mm diameter.

                                              Operating Behavior & Mechanical Characteristics
                                              The LAVIB 300 is a screening machine that produces horizontal circular vibrations, suitable for analytical sieves up to 300 mm diameter.
                                              The material to be screened is gently transported over the sieves in a circular motion. This type of machine can only be used for dry screening.
                                              The eccenter drive for the vibrating table and the compensation weight are fitted in a practical housing, the weight ensures smooth running and stability of this maintenance free machine.
                                              The keyboard is foil protected and controls the “On/Off” function and the time switch.

                                              Advantages
                                              • Low-wear and low-maintenance design
                                              • During use sieve stack can be fixed or free-moving on the drive plate
                                              • Shortened screening time
                                              • Reduction of clogging grains
                                              • Quiet running
                                              • Stable footing
                                          • Dividers

                                              • Laboratory sample splitter

                                              • Operational behaviour and mechanical characteristics
                                                For the quantitative splitting of dry, grainy, powdery sample material. The entire sample splitter, including the three catcher boxes, is made from high-grade steel and so is outstandingly suited for the reduction of sample material on site. It can be used without a power supply, is easy to operate and is easy to clean.

                                                Advantages
                                                • Low-wear and low-maintenance design
                                                • Can be used locally and in the laboratory
                                                • Independent of electrical energy
                                                • Wide choice of sizes to suit your application
                                              • Divider 8/200

                                              • Operating Behavior & Mechanical Characteristics
                                                This splitter is suitable for simple, rapid separation of freely flowing powders and pellets into 8 sample collectors. The outlets from the feed container can be sealed with a lever to allow the material to be filled, mixed and subsequently separated.

                                                Advantages
                                                • Low-wear and low-maintenance design
                                                • Simple, fast separation on 8 samples
                                                • Automatic separation without loss of material
                                            • Crushing & Milling

                                                • Vibrating-disc mills

                                                • TS & T series
                                                  The vibrating-disc mill is used for the fast and dust- and loss-free comminution of minerals, organic and ceramic materials, herbs and spices, diverse brittle metal alloys, etc., to analysis fineness. Depending on vessel size and the kind of material selected, grain feed size should not exceed 5 – 15 mm. Depending on the product, the end fineness obtainable with the mill is up to < 40 µm for dry milling and up to < 1 µm for wet milling. Depending on the vessel size, sample quantities of up to 250 cm³ can be processed.

                                                  HEM series
                                                  The HEM 2000-A vibrating-disc mill can be used for the finest comminution of all brittle, dry and non-caking materials to analysis fineness. Comminution in the HEM 2000-A high-energy mill is done in a discontinuously operating tungsten carbide milling vessel that can hold charges of sample material with a volume of up to 2000 ml.

                                                  Advantages
                                                  • Vibrating disc mill TS:
                                                  • Low-wear and low-maintenance design
                                                  • Fast, dust- and loss-free comminution
                                                  • Time can be preset
                                                  • High reproducibility in sample preparation
                                                  • Sound insulation
                                                  • Vibration disc mill HEM:
                                                  • Low-wear and low-maintenance design
                                                  • Volume up to 2000 ml
                                                  • Very fast grinding to analysis fineness
                                                  • Fully automatic emptying in a receptacle
                                                  • Cleaning with compressed air to prevent cross-contamination
                                                  • Easy operation
                                                • Vibrating Mill

                                                • Operating Behavior & Mechanical Characteristics
                                                  The motion of the grinding balls inside the barrels does also entail an intensive homogenization of the material.
                                                  The grinding process can be either dry or wet. The size and kind of the grinding balls determines the final particle size. Normally, the grain size of the feed material should be smaller than 2 mm. The final particle size which can be achieved is smaller than 1 µm, depending on the material.
                                                  As the grinding barrels are exchangeable, their material (steel or ceramics) can be chosen so that contamination by abrasion can mostly be avoided. The exchange of the grinding barrels with help of clamping devices is very user-friendly.
                                                  The vibrating frame with the maintenance-free unbalance motor is supported on springs and covered by a housing with sound isolation. The counterweight at the bottom of the housing ensures a solid support and a smooth operation of the machine.
                                                  The machine is controlled by a foil protected keyboard which is situated in the opening cover of the machine and offers the function “On/Off” and the possibility to determine the duration of the grinding process.

                                                  Advantages
                                                  • Low-wear and low-maintenance design
                                                  • Operator friendly replacement of the grinding vessels
                                                  • Grinding vessels in steel or ceramic to suit the requirements
                                                  • Sound-insulated housing
                                                  • Safe footing and quiet running of the machine
                                                  • Easy operation
                                                • Multi-purpose mill

                                                • The multi-purpose mill UM 150 is used for finely grinding – up to a hardness of approx. 6 on the Mohs scale – dry, brittle, medium-hard materials < 15 mm fed in doses. The grinding effect is based on impact and shear force, caused between the rapidly turning rotor and toothed grinding path.

                                                  Advantages
                                                  • Low-wear and low-maintenance design
                                                  • Overgrinding of fine material is eliminated
                                                  • Grinding chamber and cyclone can be completely viewed for inspection and cleaning
                                                • Disc mill

                                                • Operating Behavior & Mechanical Characteristics
                                                  Grinding in the disc mill is done between two roughly toothed grinding discs. One grinding disc is stationary, the other is rotated by a geared motor, thus exerting a shearing action on the material to be broken up. The gap between the two grinding discs determines the fineness of the material ground up. By means of an adjuster wheel with an integrated scale to alter the position of the stationary grinding disc the gap width between the two grinding discs can be repeatably set. The ground-up material falls into a glass bottle placed underneath the grinding discs.

                                                  Advantages
                                                  • Low-wear and low-maintenance design
                                                  • Grinding finenesses adjustable
                                                  • Sound-insulating housing
                                                  • Grinding chamber can be opened for inspection and cleaning without having to use tools
                                                • Cone crusher

                                                • Operating Behavior & Mechanical Characteristics
                                                  The feed material is crushed between the slowly rotating cone and the static outer grinding ring. By rotating the feed funnel, the size of the slot between cone and ring can be adjusted as required, therefore achieving the fineness of material requested. Maximum final particle sizes of < 2 mm can be achieved due to the tooth system of the fine cone.

                                                  Advantages
                                                  • Low-wear and low-maintenance design
                                                  • Can be used for thermically sensible or very hard product
                                                  • Mill finenesses stepply adjustable
                                                  • End finesses of max. less than 2 mm
                                                  • Optional separating device
                                                • Roller Mills

                                                • Single-roller mill
                                                  With the single-roller mills, brittle, soft to medium-hard materials can be reduced in size with a reduction ratio of approx. 1:5 to 1:5.
                                                  The stepped arrangement of the crushing jaws on the crushing wall enables any material rolling off being minimised, so that, compared to the double-roller mill, coarser material can be drawn in.

                                                  Double-roller mill
                                                  With the double-roller mill, all brittle materials, such as, for example, ores, clinker, limestone, gypsum, aluminium oxide, glass, … can be reduced in size up to a Mohs’ hardness of approx. 8.5 with a reduction ratio from 1:2 to 1:5.

                                                  Advantages

                                                  Advantages of SIEBTECHNIK single-roller mills:
                                                  • Low-wear and low-maintenance design
                                                  • High throughput
                                                  • High degrees of comminution
                                                  • Also available in laboratory design
                                                  • Overload protection
                                                  • Protection against smaller foreign bodies
                                                  • Fineness of end product adjustable by means of threaded spindles

                                                  Advantages of SIEBTECHNIK double-roller mills:
                                                  • Low-wear and low-maintenance design
                                                  • High throughput
                                                  • High degrees of comminution
                                                  • Also available in laboratory design
                                                • Jaw crushers

                                                • Jaw crushers are used for coarse grinding brittle, medium-hard to hard materials up to a Mohs’ hardness of approx. 8.5. Here reduction ratios of up to 1:100 are possible depending on the actual model concerned.

                                                  The crushing jaws are executed by us in two versions: In a laboratory model with integrated control system, feeding funnel and collecting tank, and a version for installation in plants. Omitted from this latter version are the feeding funnel, collecting tank and the control system.

                                                  Advantages
                                                  • Fixed crushing jaw designed as a door, so that this door can be opened without tools, and fast and easily controllable cleaning of the crushing chamber is possible.
                                                  • Reduction ratios of 1:100 and more, with fineness of the finished products of d85 < 2 mm, are possible depending on the particular type concerned.
                                                  • The infinitely variable crushing opening can be easily read off the scale attached to the housing and facilitates zero setting depending on the wear of the crushing jaws.
                                                  • Crushing jaws that can be turned through 180°, enabling further utilisation in the principal wear area of the smallest opening, and thus almost halving the costs of parts subject to wear.
                                                  • Product contamination is reduced by sealed bearings lubricated for life for Types EB 50×40 to EB 200×125.
                                                  • Tamper-proof feeding funnel with connection flange for a dedusting plant provided by the customer.
                                                  • The laboratory version is designed as a ready-for-connection model with a control system integrated into the housing.
                                                  • This also contains a safety monitor for the sample collecting box.
                                                  • Crushing jaws are available in high-carbon steel casting, tungsten carbide, zirconium oxide or stainless steel.
                                                • Hammer- and hammer impact mills

                                                • Hammer- and hammer impact mills are suitable for crushing soft to medium hard materials (degrees of hardness according to F. Mohs 2 – 5). For example: agglomerates, coal, limestone, gypsum and slag.

                                                  They are designed for large through-put volumes and trouble-free operation.

                                                  Hammer impact mills are particularly suited very coarse material for whilst attaining a high degree of comminution with large through-puts.

                                                  The hammer mill HM 1 with the collection box in the base frame is for the grinding of small batches, as normally handled in laboratories.

                                                  In a special execution that mill can also be used for the grinding of laboratory samples of metal filings.

                                                  Advantages
                                                  • Low-wear and low-maintenance design
                                                  • High throughput
                                                  • High degrees of comminution
                                                  • Also available in laboratory design
                                                  • Well accessible and easy to clean
                                                  • Replacing or re-positioning of the hammers also possible without the need to dismantle
                                              • Screening & Process Equipment

                                              • Modern screening machines and process equipment for your individual requirements
                                                Ever more stringent quality requirements being made of raw materials and end products in industry call for modern technologies and more rigorous production processes.
                                                SIEBTECHNIK not only has a large and varied product portfolio and a workforce with outstanding specialist knowledge to offer but also international and industry-specific experience.

                                                In the industrial processing and preparation of liquids and solids of the most varied kinds the quality of the screened material, the choice of screening method and the technology of the screening machine play a decisive role.
                                                Modern screening systems are judged according to screening quality, specific throughput per m² of screen area, availability, power requirement, personnel cost and, last but not least, their economic efficiency.

                                                SIEBTECHNIK has the optimum solution for any scope of work. Our screening machines are suited for the filtration, screening and classifying of liquids and solids in the most varied industrial processes. Reliable and clean separation of heavy, light, large, small, dry, dusty or even wet and sticky screening materials is always guaranteed.
                                                Whether it’s circular-, linear- or elliptical-motion screening machines, heavy-duty screening machines, screening machines for use in laboratories or special screening machines for your individual requirement: thanks to their performance capability and economic efficiency our screening machines bring great customer benefit.
                                                  • Elliptical-motion screening machine

                                                  • The king class of classifiers and up to any task – mechanical or electronic
                                                    The elliptical-motion screening machine combines the advantages of linear- and circular-motion screen as well as enabling space-saving horizontal installation and high material throughput.

                                                    Our type E (shaft with unbalance mass) and type EZ (cell drive) elliptical-motion screening machines offer separation sizes of between 0.8 and 300 mm and a screen area of between 0,6 and approx. 60 m². The machines can be set up for a vibration amplitude of between 6 and 12 mm (main axis), depending on the product. The machines and therefore the screen panel are normally installed horizontally; the screen set-up can comprise between one and three screen decks.

                                                    Advantages
                                                    • Unites the advantages of circular- and linear vibrators
                                                    • Easy adaptation of the vibration characteristic to suit the requirements of the product
                                                    • Stepless adjustment with electronic activation during operation
                                                    • Optimally adapted drive concept
                                                    • High specific throughput
                                                    • High separating accuracy during classification
                                                    • Precise, careful screening
                                                    • Nearly every commercially available screen cloth can be used. Robust design
                                                    • Long-life time-tested components
                                                    • Low-maintenance and repair-friendly
                                                    • Good vibration insulation
                                                    • Compact size
                                                    • Can be integrated in existing installations
                                                  • Banana screen machine

                                                  • High-speed screens enabling outstanding separating accuracy
                                                    The SIEBTECHNIK banana screening machine is used to screen grainy bulk goods. Drive takes the form of either double unbalance gear units (type BHG), circular-motion vibrating drives (type BV) or unbalance motors (type BHR).

                                                    The SIEBTECHNIK banana screening machine achieves good separating accuracy at an extremely high feed rate and with difficult-to-screen material. Its operational behaviour makes it a high-speed screen.

                                                    Advantages
                                                    • Customer-specific concept
                                                    • Large machine widths possible
                                                    • Can manage large and coarse grain sizes
                                                    • High screening performance
                                                    • Screen cloth to suit the screened material
                                                    • Nearly every commercially available screen cloth can be used
                                                    • Excellent screening result
                                                    • Clog-free screening even with coarse separating cuts
                                                    • High separating accuracy during classification
                                                    • Good vibration insulation
                                                    • Robust design
                                                    • Long-life time-tested components
                                                    • Optimally adapted drive concept
                                                    • Low-maintenance and repair-friendly
                                                    • Can be integrated into existing installations
                                                  • Linear-motion screening machine

                                                  • Our robust solution for “large and coarse” requirements
                                                    The SIEBTECHNIK linear-motion screening machine is used to screen and dewater grainy bulk goods. Drive is provided by either double unbalance gear units (type HG, HG-E, UHG), dual-shaft drives (type DWS, DZS, HN) or by unbalance motors (type HR, HR-E, MHR).
                                                    We build linear-motion screening machines with top- or bottom-mounted drive units for extreme requirements. This applies to wide machines (up to 5.5 m wide) or to extremely grainy feed material (e.g. granite with an edge length of approx. 1.2 m). Also high feed material temperatures and the demand for low residual moisture can be met with these machines.

                                                    Advantages
                                                    • Customer-specific concept
                                                    • Large machine widths possible
                                                    • Can be loaded with large and coarse grain sizes
                                                    • High screening performance and high dewatering performance
                                                    • Screen cloth appropriate for screened material
                                                    • Nearly every commercially available screen cloth can be used
                                                    • Excellent screening result
                                                    • Low-clog screening even with coarse separating cuts
                                                    • High separating accuracy during classification
                                                    • Good vibration insulation
                                                    • Robust design
                                                    • Long-life time-tested components
                                                    • Optimally adapted drive concept
                                                    • Low-maintenance and repair-friendly
                                                    • Can be integrated in existing installations
                                                  • Accessories for screening machines

                                                  • There is a comprehensive range of accessories available for all SIEBTECHNIK screening machines. Whether it’s spraying system, wear protection, drive consoles, air suspension, counter-vibration frame, dust guard, dust covers, double unbalance gear units, hybrid suspension or special screen cloths – thanks to its decades of experience SIEBTECHNIK gets you the best result for your requirement.

                                                    Naturally our machines can be perfectly combined and offer the optimum solution as a package.
                                                  • Circular-motion screening machine

                                                  • Our solution for classic applications
                                                    A SIEBTECHNIK circular-motion screening machine is the classic solution for process requirements in screen classification. It is a freely vibrating screening machine that vibrates in a circle and is mounted on helical compression springs. Screen box and unbalance mass are optimally coordinated in their mass ratios. This enables a harmonious vibrating motion to be transmitted to the screened material at all points on the machine. Speed and vibration amplitude of the machine can be varied specifically to suit the product and so ensure a lastingly perfect screening result. The robust construction using and combining standard component parts ensures high flexibility and enables customer-focused solutions. Moreover, machines can be constructed with a low-maintenance running time and a long service life.

                                                    Advantages
                                                    • High screening capacity
                                                    • No upthrow of material, so no terminal grains and clogging
                                                    • Low-noise
                                                    • Precise and careful screening
                                                    • High separating accuracy during classification (up to 99 %)
                                                    • Short standstill times thanks to fast cleaning
                                                    • Very weak dynamic forces
                                                    • Robust design
                                                    • All commercially available screen cloths can be used
                                                    • Optimally adapted drive concept
                                                    • Low-maintenance and repair-friendly
                                                    • Can be integrated in existing installations
                                                  • Curved-screen systems

                                                  • Our non-vibrating systems for the processing of suspensions.
                                                    SIEBTECHNIK curved-screen systems (type ZB or ZBB) are dynamic dewatering and classifying screens, even though they contain no mechanically moved parts. The system consists of a stationary housing that is fitted with a concave-curved screen cloth. The systems have been specially developed for the separation of solid materials from process or waste water and achieve optimum results at a low cost.

                                                    Advantages
                                                    • High throughput, which even in continuous operation remains unchanged because of the self-cleaning action or a cleaning device.
                                                    • High separating accuracy because of the non-dependence on the specific weight of the solids and the solution – unlike with flow classification.
                                                    • Low installation costs thanks to small space requirement because of the compact construction combined with a high specific performance.
                                                    • Low running costs thanks to low-maintenance operation through the non-use of mechanically moved parts.
                                                  • Tumbler screening machine

                                                  • Adaptable fine-screening specialist
                                                    The SIEBTECHNIK CONFLUX type C tumbler screening machine offers outstanding adaptation options to meet the most stringent requirements in fine-screening and ultrafine-screening technology. It is suitable for classifying, dedusting, dewatering and control-screening.
                                                    The CONFLUX is a round screening machine with a variable screen set-up and a co-vibrating drive motor with changeable vibration exciter.
                                                    The vibration patterns can be optimally set to suit the screened material and for the required screening result by simply shifting the unbalance weights of the lower vibration cell.
                                                    Depending on the number of grain separations required, up to three drums can be mounted on top of one another and so a maximum of 3 separating cuts and 4 size fractions achieved. Oversize and undersize grains are removed at the side, at separate discharge outlets.

                                                    Advantages
                                                    • Exact separation and high efficiency
                                                    • Space and energy saving
                                                    • Quiet running
                                                    • Versatile and low-maintenance
                                                    • Suitable for use with foodstuffs
                                                  • Channel conveyors

                                                  • Our vibrating machines for material transport, entirely without screening function
                                                    SIEBTECHNIK channel conveyors are used for the transport of grainy bulk goods. Drive is provided either by double unbalance gear units (type FG, FG-C) or unbalance motors (type FR, FR-C).

                                                    We build channel conveyors with top- or bottom-mounted drive units for extreme size requirements. The transport of coarse-grained or very hot feed material or the even loading of a downstream screening machine with feed material is nothing to these vibrating machines.

                                                    Advantages
                                                    • customer-specific design concept
                                                    • large machine widths achievable
                                                    • can handle large and coarse grain sizes
                                                    • high specific conveying capacities
                                                    • lined with replaceable wear-resistant components
                                                    • type and extent of wear protection to suit materials conveyed
                                                    • adjustable transport capacity
                                                    • good vibration insulation
                                                    • robust construction
                                                    • durable proven components
                                                    • optimally adjusted drive design concept
                                                    • maintenance-free and repair-friendly
                                                    • can be integrated with existing plant
                                                  • Excenter screening machine

                                                  • Whatever you give it to do, the result is always consistent screening performance
                                                    The SIEBTECHNIK excenter screening machine is ever ready for anything thanks to its fixed vibration amplitude. Excenter screening machines have been superbly proving their worth as pre-separators with stepped heavy perforated plates or a robust stepped grid under hard conditions for many years.
                                                    Pre-separators are preferably used before the first crushing stage in stone quarries, ore mines and slag processing plants. The stepped screen area enables the screened material to be well relayered.
                                                    In the case of feed material with long, thin and pointed bits that tend to jam we recommend for optimum results a stepped grid with slots that get larger in the direction of transport. Also 2-deck solutions are feasible and enhance the classifying process.
                                                    We build our excenter screening machines for you with nominal screen widths of up to 2100 mm and screen lengths of up to 4000 mm.

                                                    Advantages
                                                    • High feed
                                                    • Robust slotted grids for pre-screening of stone of all kinds
                                                    • Efficiently relieves loads on downstream comminuting units
                                                    • Reliable wear protection
                                                  • Multi-deck screening machine

                                                  • Big performance in the smallest space
                                                    MDS multi-deck screening machines
                                                    For the pre-separation, enrichment and classification of difficult-to-screen bulk mineral materials. Also with a relatively high near-mesh-sized grain content and critical water content we recommend our multi-deck machines with up to 5 screen decks one above the other. The mostly monogranular screening, made possible by an especially steep screen deck tilt in the lower section, enables high specific screening performances and good classification accuracy, even with small screen holes.
                                                    MHR multi-deck screening machine
                                                    Whenever dry material is to be classified as accurately as possible into a number of fractions, the MHR is the screen to use. The large number of nearly vertical throws, the lighter load on the decks and the large screen area enable finished products in analysis screen quality.
                                                    The test screening machine with a size of 500 x 1400 mm and with up to 7 decks is available at the technical screening centre in Mülheim a.d. Ruhr or as a hire screen for customer tests.

                                                    Advantages
                                                    • Separations of between 32 μm and 8 mm
                                                    • Large screen areas up to 100 m¬ possible on one screening machine
                                                    • Generation of many accurate fractions
                                                    • Clog-free screen cloths
                                                    • Flexible deck division for customer-specific solutions
                                                    • Slow transport speed for careful classification
                                                    • Suitable for extremely abrasive material (e.g. blasting and grinding media)
                                                    • Parts in contact with product are of high-grade steel
                                                    • Metal-free screening
                                                    • ATEX design
                                                    • Inexpensive screen insert frame of wood or food-resistant high-grade steel frame
                                                    • Maintenance-friendly and long-life construction
                                                  • Pulsator jig

                                                  • Expert in density separation
                                                    The SIEBTECHNIK pulsator jig is specially designed for the separation of light material from heavy material in grain size > 1 mm. This includes the separation of harmful materials from e.g. sand and gravel, slags, building rubble and contaminated soils as well as the separation of different ores.

                                                    Advantages
                                                    • high separating accuracy
                                                    • low energy consumption
                                                    • low-noise
                                                    • good vibration insulation
                                                    • robust design
                                                    • long-life time-tested components
                                                    • Optimally adapted drive concept
                                                    • Low-maintenance and repair-friendly
                                                    • Can be integrated into existing installations