Navigation : EXPO21XX > BIOENERGY 21XX > H03: Waste Fermentation Plants > ANDRITZ MeWa
ANDRITZ MeWa
  • Offer Profile
  • ANDRITZ MeWa develops and manufactures recycling machines and complete solutions for the recycling of WEEE (Waste Electrical and Electronic Equipment), refrigerators, oil filters, household- and domestic waste (RDF), used tires and much more.

    Innovative standard solutions as well as our individually tailor-made solutions convince with profitability, efficiency and reliability. The key to the success of the complete plants are our recycling machines for the primary shredding and granulating as well as our process know-how of over 30 years.

    ANDRITZ MeWa supports its customers in realizing their plans and meeting their individual requirements economically, efficiently and exactly. The goal is to re-use the recycling material as new raw materials, like pure metals and plastics, and to substitute fuels and bioenergy.

Product Portfolio
  • Recycling machines and custom-made recycling solutions

  • ANDRITZ MeWa recycling machines: flexible, highly productive and reliable

    The ANDRITZ MeWa machine range consists of different special aggregates, which perform their work in the complete recycling process: in the primary shredding, the secondary shredding and the fine granulation as well as the breaking up of material composites and making recyclable material accessible at the same time.

    Every kind of material demands a very special treatment, for which ANDRITZ MeWa has developed optimized technologies for their effective and efficient treatment. All recycling machines are characterized by their flexibility, efficiency and reliability and process the input material to pure, valuable substances combined with a high throughput.

      • Universal Rotary Shear UC

      • When volume needs to be reduced, waste to be prepared for incineration or material to be shredded for subsequent treatment, the Universal Rotary Shear UC forms the basis for a successful recycling process.

        Whether you have bulky material, tires, textiles or massive metal parts – the Universal Rotary Shear UC shreds the material in a powerful, precise and reliable way. For the various applications and material types there are suitable machine sizes with different knife types available. In the secondary recycling step the material can be processed optimally, e.g. with the Universal Granulator UG.

        Operational principle

        All Rotary Shears UC have a slow and quiet running twin-shaft cutting unit. The pull-in teeth of the counter-rotating knife discs catch the material to be disintegrated and tear it in. The knives cut the material in strip-shaped pieces. The width of the knives and the number of the pull-in teeth determine thereby the size of the shredded material. Stationary scrapers between the rotating knives keep the cutting unit free from material.

        Input material

        The Universal Rotary Shear UC accomplishes the primary shredding of bulky large-volume input material e.g.

        • Domestic, industrial and bulky waste
        • Tires (cars, trucks, construction machines)
        • Aluminum profiles, aluminum waste
        • Steel and plastic barrels  
        • Contraries, textiles, carpets, floor covers
        • Film, papers
        • Shredder-light-fraction
        • Automobile parts, e.g. oil filters, motor blocks, catalytic converters
        • Mattresses
        • Cable scrap

        Benefits of the Universal Rotary Shear UC

        • Versatile application possibilities
        • Strong and robust, constructed especially for difficult materials
        • Reliable and effective shredding
        • Automatic and selective contraries detection
        • Reversion: Protection of the machine, rotor and knives
        • Pusher for increased throughput
        • Cutting unit with polygonal rotor shafts for a higher cutting performance
        • Divided cutting unit housing for a faster rotor shaft change
        • Ideal power and torque transmission
        • Special knife-changing-system with different knife sizes: Individual knives can be resharpened and reinserted
        • Precisely worked cutting knives for exact cutting
        • Above-average life-time
        • High throughput volume and homogeneity of the output materials
        • Constant development (last revision in 2015)
        • Wealth of experience in the shredding of all kinds of materials
        • Worldwide references
      • Universal Granulator UG

      • The Universal Granulator UG of ANDRITZ MeWa processes a variety of different materials to high quality results and convinces in particular due to the dynamic application and the shredding results.

        The Granulator UG series consists of four different machine sizes: The Granulators UG 600, UG 1000, UG 1600 and UG 2000. The equipment of the machine is determined by the main application, so that the features can be optimally adapted to the respective requirements. Decisive for the huge success of the Universal Granulator UG is apart from the high flexibility and the convincing results also the high operational safety and reliability.

        Operational principle

        The Universal Granulator UG works on the principle of guillotine shears. The material is cut above rotating knife blocks on stationary knives. The granulating screen mounted underneath determines with variable hole sizes of 5-100 mm the granulation as well as the respective throughput.

        Input material

        The Universal Granulator UG shreds and granulates the following material to defined granule sizes:

        • Domestic, industrial and bulky waste
        • Tires (cars, trucks, construction machines)
        • Electrical/Electronic waste, electric motors
        • Cable scrap
        • Oil filters
        • Metal composites
        • Fiber-glass reinforced plastics
        • Contraries, textiles, carpets, floor covers
        • Films, paper
        • Shredder-light-fraction
        • Production waste like metal turnings, punch scrap, rejects

        Benefits of the Universal Granulator UG

        • Consistently high quality of cutting due to re-adjustable cutting blocks
        • Low-wear cutting blocks, rotatable four ways and quickly replaceable
        • Perfect quality of results
        • Processing of very massive, unhardened metals possible
        • Precise adjustment of the cutting gap for very fine composite materials
        • Special hardened screens with a hole size of up to 100 mm for a high flexibility with low wear
        • Rotor forged from one piece, robust and reliable
        • High cutting performance and very good wear protection
        • High stability due to the solid construction, absorbs impacts safely
        • Higher throughput due to an pusher
        • Maintenance free coupling system for the protection of the machine
        • Energy-efficient drive of the machine due to flywheel drive
        • Constant development (last revision in 2015)
        • Working experience for decades for various applications
        • Wealth of experience in the granulation of all kinds of materials
        • Worldwide references
      • Universal Cutting mill USM

      • The Universal Cutting mill USM granulates precisely and quickly material already pre-shredded. The results are defined, pure-grade granule sizes of secondary raw materials, which can be used for the production of new products.

        The Universal Cutting Mill USM is especially suitable for the fine granulation for the recycling of used tires, plastics and cables and is mostly used as the final shredding step in a complete process. The machine shreds the material to 0-4 mm and thus breaks up the last remaining material composites. The individual fractions can e.g. subsequently be separated with a non-ferrous separator. The individual fractions like copper, aluminum and plastics are then available in a high purity and quality.

        Operational principle

        Similar to the operational principle of the Universal Granulator UG, the fine granulation in the Universal Cutting Mill USM is carried out with the shearing effect of rotor and stator knives. The “double helical cutting geometry” enables a precise cutting gap over the complete working width of the machine and ensures at the same time a power favorable cut. The granulation screen mounted underneath determines with variable hole sizes of 0-4 mm the granulation as well as the respective throughput.  Underneath the screen a collection tray is placed, from which the granules are pneumatically sucked off or transported with a discharge screw conveyor.

        Input material

        The Universal Cutting Mill USM is used for the fine granulation to granule sizes of 0-4 mm for the following material:

        • Aluminum and copper cables
        • Tire rubber
        • Plastics
        • PVC floors
        • Injection molding
        • Film waste
        • Paper

        Benefits of the Universal Cutting mill USM

        • Precisely cut and homogenous final fractions
        • Robust machine construction, absorbs vibrations
        • Power favorable cutting geometry
        • Energy-saving drive with safety coupling system
        • Low space requirement, many possibilities to integrate in existing installations
        • Long lifetime of stator and rotor knives
        • Short downtimes due to fast knife changes
        • Quick change of screen due to integrated hydraulic folding device
        • Reinforced feeding shaft with safety systems and hydraulic opening for maintenance
        • Low wear due to tempered special steel
        • Protected rotor shaft, as it is placed outside of the grinding chamber
        • Good heat dissipation due to the use of solid, high quality steel
        • Constant development (last revision in 2015)
        • Wealth of experience in the fine granulation of all kinds of materials
        • Worldwide references
      • Universal Cross-flow shredder QZ

      • The Universal Cross-flow shredder QZ does completely without the use of knives and opens up the input material particularly gently and quickly using impact forces. In comparison with conventional cutting systems the QZ offers significant advantages concerning the result and wear.

        The Universal Cross-flow shredder QZ is suitable for a number of different materials and composites. The machine concentrates on the disintegration of the input material, but avoids an undoing and damaging of the individual components. It is therefore possible to quickly access disintegrated valuable waste material, without potential harmful substances emanating from individual parts.

        Operational principle

        Flexible turning tools accelerate the input material to variably adjustable speeds and circles. Approx. 80% of the disintegration and the opening up are carried out by the impact of the accelerated materials with each other. The different physical properties of the materials as well as the individually adjustable holding time determine the form and size of the processed material.

        Input material

        The Universal Cross-flow shredder QZ is used for a gentle and quick material break-up of the following composite materials:

        • Electrical/Electronic waste, household appliances, cooling units, white goods, brown goods
        • Printed circuit boards
        • LCD-monitors
        • Composites: metal/plastics, ferrous/non-ferrous metals, aluminum/plastics, wood/glass
        • Automobile parts e.g. motor blocks, catalytic converters, interior equipment
        • Tinplate/aluminum cans (UBC)
        • Metal scrap
        • Fiber-glass reinforced plastics
        • Metal separator fractions from MBA installations
        • Hazardous waste, e.g. paint containers, spray cans, batteries, toner cartridges
        • Production waste, e.g. aluminum turnings
        • Processing of renewable resources, bio wastes, packed food etc.

        Benefits of the Universal Cross-flow shredder QZ

        • Single stage processing of input material
        • Large variety of possible input materials, also as material mix
        • Perfect breaking-up of composites at short operating times
        • Quick access to the reusable materials and more efficient sorting
        • The isolated composite elements remain intact and can be easily sorted
        • Up to 80% of the material is directly useable after being processed in the QZ and sorting
        • Insensitive against massive metal parts
        • Low wear of the acceleration tools in comparison with knives
        • Quick tool changing
        • Use of highly tempered special steel for walls and tools
        • Easy processing of explosive or harmful materials
        • Leakage prevention of possible contaminants
        • Addition of cooling agents possible to separate difficult composites
        • Batch operation as well as continuous feeding possible
        • Many adjustment possibilities for a perfect result, e.g. rotation speed, operation time and size of discharge opening
        • Energy-efficient drive
        • Constant development (last revision in 2015)
        • Wealth of experience in the disintegration of all kinds of materials
        • Worldwide references
      • Universal Bio-QZ

      • The Bio-QZ is used in hundreds of European biogas facilities for processing many different input materials. Flexible tools inside the machine produce a homogeneous substrate that lead to faster gas formation, shorter fermentation time, and higher gas yield overall in the fermenter.

        The new Bio-QZ generation is now available in a modern, compact, and, at the same time, stable design in sizes 900 mm, 1200 mm, and 1600 mm. The main focus was to improve ease of maintenance.

        Highlights of the new Bio-QZ

        • Large maintenance port
        • Swivel-mounted discharge cover
        • Compact design
        • Easy wear plate change
        • Optimized outlet and curved gate to prevent blockages
        • New, improved seal
        • Compact bearing unit
        • Different accelerating and shredding tools for different materials
        • Further upgrades possible for longer service life

        Input material

        • Organic waste
        • Corn/grass silage, grass clippings
        • Horse, cow, and poultry manure
        • Slaughterhouse waste
        • Packaged food
        • Sugar beets

        Complete Bio-QZ systems

        ANDRITZ MeWa offers the complete process chain, from supply of the input material, to its disintegration, to feeding it to the fermenter. The individual process stages can be controlled through a common interface or included in the plant’s overall electronic control system. Existing biogas plants can also be upgraded easily with a Bio-QZ for more efficient use of gas potential.

        Process advantages

        • High throughputs
        • Wide range of different materials
        • Much shorter dwell time in the fermenter
        • Higher gas yield due to faster gas formation
        • Packaging removed from organic material
        • More stable processes, stirring times halved
        • Homogeneous substrate suitable for pumping
        • Scum layers dissolve more quickly
        • Insensitive to metal parts and stones
        • Low wear due to operating principle without knives
        • Benefits for co-fermenters and renewable energy plants
        • Use of all proven dry and liquid feed systems
        • Easy to install in existing plants
    • ANDRITZ MeWa recycling plants: profitable, efficient and reliable

    • The ANDRITZ MeWa plant range offers recycling solutions for a wide variety of different applications: Electronic and electrical waste, refrigerators, cable scrap, aluminum scrap, automotive parts like oil filters, motor blocks and tires, domestic and industrial wastes.

      All materials contain valuable parts, e.g. copper, aluminum and iron, which are available and can again be sold as secondary raw materials when processed properly.

        • Electrical and electronic waste

        • For each type of electrical and electronic waste ANDRITZ MeWa offers individually tailor-made plant solutions, which meet all requirements of the European WEEE Directive. With the Universal Cross-flow shredder QZ, ANDRITZ MeWa has developed a particularly effective and environmentally friendly technology, which has led the way throughout Europe, for recovering the recyclable materials and separating out the hazardous substances.

          The Universal Cross-flow shredder QZ as centerpiece of the e-scrap recycling plant breaks up gently the input material. That way the material composites are broken-up and assembly groups are freed. Batteries and capacitors remain intact whereby the material stream remains clean. Directly after the processing in the QZ approximately 80% of the input material can be separated manually, automatically or optoelectronically and is directly available for selling-on.

          Input materials - Examples

          • Household equipment
          • Computers
          • Copiers
          • Washing machines
          • Dryers
          • Consumer electronics
          • Small appliances
        • Refrigerators

        • ANDRITZ MeWa recycling plants for cooling devices can reclaim 99.9% of environmentally harmful greenhouse gases. A particular benefit is that even modern refrigerators – in which the insulation materials have been expanded using highly-explosive pentane gas – can be processed at the same time as CFC appliances without a risk of fire.

          The completely sealed system of the Universal Cross-Flow Shredder QZ takes in the refrigerators in batches and separates them in their individual components. A subsequent matrix degassing extracts the CFC from the insulating foam. With this gentle and environmentally friendly method of processing, the ANDRITZ MeWa recycling plants for refrigerators comply with highest European environmental standards. The extracted individual fractions of iron, copper, aluminum, plastics and polyurethane foam can directly be returned in the economic cycle.

        • Metals and special solutions

        • Whether it’s metal/plastic compounds, profiles and sheets from production left-overs, metal turnings and used beverage cans: ANDRITZ MeWa can provide the appropriate recycling technology for any application. The solutions are designed for use with metal recycling in mind, from the individual shredding machine to the complete recycling plant for a particular application.

          Whenever metals are involved, our machines and plant solutions which are perfectly tailored to the material demonstrate their strength. When it comes to the separation of composites, the Universal Cross-flow shredder QZ disintegrates these in one step. In all other cases, our cutting systems Universal Rotary shear UC and the Universal Granulator UG work precisely and reliably.

          Input materials - Examples

          • Metal/plastic composites
          • Bales, sheets, profiles
          • Metal turnings
          • Used beverage cans (UBC)
          • Metal separator fraction
          • Aluminum castings
          • Waste metal / dross
          • Spray cans
          • and many more
        • Automotive parts

        • Whenever metal is involved, the ANDRITZ MeWa technology can prove its strengths. Especially components from end-of-life vehicles (ELV), like tires, oil filters, catalytic converters and motor blocks, contain a variety of valuable raw materials for which ANDRITZ MeWa has developed pioneering solutions.

          Obtaining the rubber from used tires, the metals from oil filters and catalytic converters, the aluminum from wheel rims and engine blocks or the steel springs from seats – ANDRITZ MeWa recycling technology offers the right solution for any situation.

          Input materials - Examples

          • Tires (cars, trucks, agricultural)
          • Oil filters
          • Catalytic converters
          • Motor blocks
          • Aluminum rims
          • Interior
        • RDF production

        • ANDRITZ MeWa supplies specific technologies, processes and equipment for the conversion of waste to energy. This includes equipment for shredding, screening, classification and drying. The outcome is valuable goods, such as high-calorific RDF, as well as non-combustible fractions.

          MSW and C&I waste contain many different materials that need to be separated mechanically into a high- and a low-calorific fraction. This process involves shredding, screening and classifying of the material. Metals, inerts and organics are removed; light fractions with high-calorific value (e.g. plastics, textile and paper) remain. The RDF fraction could be used in the cement industry, steel furnaces or power stations, substituting coal and oil.

          The high-quality Universal Rotary Shear UC and Universal Granulator UG are used for primary and secondary shredding. Quickly interchangeable screens allow many different output sizes.

          In order to optimize the output quality shredding can be combined with

          • Sorting and separation
            • according to size and form: drum screening, 3D-screens, fine screens
            • according to weight and form: air separation, ballistic separation
            • according to special material properties: ferrous metals, non-ferrous metals, optical separation of pre-defined fractions, e.g. plastics/PVC, 
              wood, glass
          • Drying
            • Bio-drying
            • Thermal drying  (belt dryer, drum dryer)

          The result is a homogeneous refuse derived fuel.

          Input materials - Examples

          • Municipal solid waste (MSW)
          • Commercial and industrial waste (C&I)
          • Construction and demolition waste
          • Pulp & Paper industry rejects
          • Other waste fractions, bulky waste, organic waste, sorting residues
        • Waste from the paper industry

        • Waste paper is usually delivered to paper mills in pressed bales held in shape by wires. The stock preparation process generates rags that comprise wires and other rejects. Rejects are all those materials that are not paper, such as plastics, textiles and metals.

          Depending on the requirements, ANDRITZ MeWa plants include several shredding stages in order to break down the stubborn rags properly. The robust machine technology with its very hard wearing cutting gear releases the metals (accounting for up to 40% of the content) completely. Impurities are separated into different fractions by subsequent separation processes. The calorific materials are further processed to provide substitute fuels.

          Input materials - Examples

          • Pulper rags
          • Loose pulper rejects – containing mainly plastics, metals, stones, wood
          • Sand containing cleaner rejects
          • Light weight rejects from the coarse screening