Improve your additive manufacturing workflow with the APS Unpacking Station. Our solution provides low-dust unpacking of laser-sintered parts from built frames. With a variety of options, the APS Unpacking Station optimizes downstream processes, including unpacking, sieving, and used/waste powder collection. Increase efficiency and maintain a clean environment with our advanced unpacking station.
The APS Unpacking Station offers many benefits to optimize your additive manufacturing workflow. Uniform light distribution and ionized laminated glass provide a clear view of the parts being unpacked. The electrically height-adjustable work surface allows for ergonomic adjustments, and the build platform allows hands-free lifting using a foot switch, leaving both hands in the working area.
Improve your additive manufacturing workflow with the APS Unpacking Station. Our solution provides low-dust unpacking of laser-sintered parts from built frames. With a variety of options, the APS Unpacking Station optimizes downstream processes, including unpacking, sieving, and used/waste powder collection. Increase efficiency and maintain a clean environment with our advanced unpacking station.
Advantages of the APS Unpacking Station:
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
“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.
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:
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
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.
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.
Operating Behavior & Mechanical CharacteristicsThe AMAS process begins with the filling of the drying dish with the moist sample of bulk material. This is then spread evenly over the dish and weighed.
After a certain period of time for drying, the dish is removed from the oven, weighed, and then replaced in the oven.
This last step is repeated until the material is completely dry and the results of two successive weighing operations are identical. The dish is then emptied and cleaned to receive the next sample. The illustration shows the AMAS with an eccentric vibration-grinding mill for reducing the sample to fine particles in readiness for subsequent material analysis.
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.
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.
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
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
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.
Advantages
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.
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
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
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
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
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
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.
Positioning the spoon in the filling position that occurs outside the product flow is only carried out after again crossing the product flow in the opposite direction. In this waiting position, the sampler is not exposed to the product flow and is thus not subjected to any wear.
Advantages
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.
The swivel movement of the slotted vessel can be executed both via a pneumatic cylinder as well as via a three-phase motor.
Advantages
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.
The sample chute can be powered both by a geared motor as well as via a pneumatic cylinder.
Advantages
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.
Advantages
Sample preparation in a laboratory disc mill has been a tried and tested method for decades, especially in the fields of geology, mineralogy, metallurgy, the glass/ceramics industry, the construction materials industry, soil/plan analysis and power plants.
The laboratory disc mill enables fast, loss-free and reproducible fine comminution and homogenization of the samples.
The grinding barrels can hold sample batches of 10 – 1000 cm³ and grind and homogenize the sample material to final finenesses of up to < 40 μm*1) in a single step.
Sample preparation with a laboratory disc mill is thus the ideal prerequisite for subsequent analysis using X-ray spectrometers, regardless of whether pressed tablets or melt tablets are produced from the ground samples.
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