Wipa

Who is WiPa?

WiPa Werkzeug und Maschinenbau GmbH is a tool, machine, plant and special machine construction company based in Stadtlohn, North Rhine-Westphalia, Germany. The company was founded in 1994 by the managing partner Johannes Wissing.

The basis for the planning, construction and production of innovative and high-quality machines and plants are CAD-supported constructions and our own machinery for all areas of metal processing: CNC-controlled turning, grinding, drilling and milling centres. Developed according to the latest state of the art and equipped with selected components from renowned suppliers, WiPa machines and systems are ready for the standards of the future.

Quality and reliability are at the forefront of the products. This philosophy of the company is also recognised internationally. In the design, development and manufacture of the company's machines and plants, it is often unconventional approaches that lead to innovative solutions. The interaction between the customer's task and the know-how of the employees results in individual solutions for customised machines and systems in the following areas

• plastics processing
• recycling
• shredding
• Recyclable material recycling
• Plastics processing
• Innovative special machines

THE MACHINES

SHREDDING

Overview

• Cutting Mills
• Profile & tube mills
• Special Cutting Mills
• Side mills
• Hammer mills
• Continuous guillotines
• Guillotine shears
• Shredders

 

WIPA Granulator type G

The altogether 18 variants of the WiPa granulators of the G series are compact, robust machines for the size reduction of a wide variety of products from the plastics processing industry. Their power spectrum ranges from 5.5 kW to 2x160 kW. The machines are specially designed for shredding heavy and bulky parts, such as start-up lumps from extrusion, thick sheets, thick-walled or solid profiles, but also film and bottle waste. A wide variety of materials can be processed by simple retooling, which is essential for a modern recycling operation and its versatile requirements.

 
The knives are adjusted outside the mill during operation.

Advantages

 

• Economical and energy-saving size reduction
• Universal application due to simple changeover
• Low downtimes due to easy accessibility
• Robust bearing separate from the grinding chamber
• Rotor variants for every application
• Easy accessibility of the grinding chamber, thus low effort for cleaning work

 

WiPa Low Speed Granulator Type GLS

The WiPa granulators of the GLS series have been developed as auxiliary granulators for e.g. the injection moulding industry. Due to the low speed rotor the material is crushed with a very low noise emission and dust-free. Maintenance and cleaning work on the machine can be carried out easily and quickly due to its good accessibility. The motor power of the five variants ranges from 0.35 kW to 3.75 kW.

 

WiPa High Speed Granulator type GHS

The WiPa granulators of the GHS series are suitable for the size reduction of injection moulded parts, small bottles and canisters and other thin-walled products of the plastics industry. This type of granulator is mainly used in the injection moulding industry. The motor power of the six variants covers a range from 4.00 to 37 kW.

 

 WiPa continuous guillotine type WGA and WGDA

The continuous guillotines of WiPa were developed to shred fibres and textiles. Furthermore, films, fleece or non-woven can be processed.

The material feed

The material can be fed into the guillotine manually or by special feeding devices. Various feeding systems are available for different materials such as voluminous material bales like fibre bales, ropes/ropes, etc.

The process

The material is fed manually or by an upstream feeding device onto the feeding belt of the machine. This feeds the material to a pressure device, which compresses the material and passes it on to the knives. The knife unit consists of a movable and a stationary knife and works with a precise shear cut, which guarantees a clean cut edge.

Advantages

• The cutting gap can be adjusted during operation via 2 hand wheels
• The cutting length can be adjusted from 10mm - 200mm
• Cutting width of 600mm
• Maximum thickness of the material to be shredded 180mm
• Maximum feed thickness of 500mm
• Cutting speed of approx. 200 cuts/minute
• Throughput rates of up to 2,500kg/h depending on material density
• Feeding devices available for a wide range of materials

 

 WiPa Screw Shredder Type WBB

The WiPa screw shredder type WBB is a system for separating e.g. single PET bottles from pressed bales. As the material is compressed very strongly in a bale press, the detachment of e.g. single PET bottles is only possible with difficulty. The WBB screw shredder removes individual bottles from the bale without destroying them. The output material is loose and can be passed on to downstream equipment, e.g. for shredding or sorting.

The WBB screw shredder is designed for pre-shredding and portioning large-volume materials. It is ideally suited for breaking up bales, but can also be used for bulky materials such as wood pallets, plywood boards, porous and brittle materials such as aerated concrete, limestone, cable drums, as well as other porous, brittle materials and plastic waste.
 

The process

The material is fed into the generously dimensioned feed hopper, which is located above 2 to 4 screws. The augers are arranged horizontally and parallel to each other and run against each other depending on the load in order to shred and portion the material or the material bale. The shredded material is discharged at the rear of the machine via the augers.
 

Advantages

• Low operating costs
• Low spare parts costs
• Robust and low-maintenance design
• Automatic reversing function, which prevents machine standstill due to material jamming
• Low-noise operation due to slow-running screw elements
• Very high throughput rates

 

 WiPa extruder type PME

The ever-increasing demands for economical and innovative processing of plastics and especially their waste to the highest quality require advanced single-screw pelletising systems, designed for optimum performance at the lowest possible investment and operating costs.

The WiPa PME range of systems achieves maximum plasticising performance and excellent homogeneity. This enables cost-effective pelletising such as compounding, colouring, alloying, filling, reinforcing as well as regranulating. The WiPa PME pelletising systems are universally applicable, reliable and flexible. They thus guarantee an economical solution for processing high-quality engineering plastics.
 

Advantages

• Degassing takes place via powerful vacuum pumps
• Both barrel and screw can be used for a wide range of processing applications
• Control via touch screen on the machine
• The systems are available with hot die, strand pelletising, water-ring and underwater pelletising downstream
• Compact and modular design, expandable at any time
• The temperature-controlled feed bush can be replaced at any time if required.
• The screw can be designed according to requirements.
• The barrel is heated with long-life ceramic heating elements, which ensure an optimum temperature supply.
• The feed section can be varied as required and, thanks to the modular system, can be retrofitted and converted at any time.
• All electrics and electronics are integrated in the base frame:
• unnecessary wiring and adjustment on site is eliminated
• Compact design reduces storage space
• Extensive range of accessories

 

WiPa recycling system type ZTE

The material, such as films, fibres and foams, enters the reactor via a conveyor belt or a roller feeder. The reactor unit shreds, compacts and then presses the material into the compensation screw. The high-performance standard extruder carries out the plasticising process in a way that is gentle on the material, so that the melt is filtered through the continuous screen changer and knocked off at the pelletising nozzle in the plastic state. The granulate obtained is cooled in the water flow, with separation taking place via a vibrating chute. In the subsequent centrifuge, any residual moisture is separated and the granulate can then be packed into a silo, a container or into bags, as required.

The precisely adjusted parameters ensure perfectly dry and uniform granulate. Regrind can be fed directly into the extruder hopper via a metering unit and thus plasticised directly without passing through the reactor unit. This extremely efficient machine concept ensures optimum processing of the materials at the lowest possible investment and production costs!

 

TA reactor unit

The reactor unit consists of an open, easily accessible chamber with rotating crushing tools that crush, compact and dry the material and press it into the compensation screw. The reactor unit can be completely disconnected from the extruder. This means that production changeovers of any kind can be realised at short notice.

Compensation screw

Special screw for transporting the pre-treated material into the extruder. This system compensates for material fluctuations and thus ensures a constant throughput. In addition, the material is pre-degassed, which relieves the high-performance degassing system in the extruder.
 

High-performance extruder PME

The high-performance extruder takes the pre-compacted compound and carries out the plasticising process in a way that is gentle on the material. The precisely adjusted parameters ensure perfectly dry and uniform granulate. Regrind can be fed directly into the extruder hopper via a metering unit and thus plasticised directly.
 

Advantages

 

• Degassing takes place via powerful vacuum pumps
• Both barrel and screw can be used for a wide range of processing applications
• Control via touch screen on the machine
• The systems are available with hot die, strand pelletising, water ring and underwater pelletising downstream
• Compact and modular design, expandable at any time
• The temperature-controlled feed bush can be replaced at any time if required.
• The screw can be designed according to requirements.
• The barrel is heated with long-life ceramic heating elements, which ensure an optimum temperature supply.
• The feed section can be varied as required and, thanks to the modular system, can be retrofitted and converted at any time.
• The entire electrical system and electronics are integrated in the base frame: unnecessary wiring and adjustment on site is eliminated - compact design reduces floor space

 

WS screen changer

Continuously operating high-performance screen changer with a very large cylindrical screen surface. Due to the cylindrical filter surface, the screen changer is smaller than conventional screen changers with a flat filter surface.
 

Advantages

• Smaller design, therefore
• Less space required
• Lower spare parts costs
• Lower energy costs (less heating)
• Less expensive to purchase
• Screen change without interrupting production
• Screen area approx. 7 x larger than with conventional screen changers

 

Pelletising systems

All common pelletising systems are available to suit your application:
 

• Hot die HA
• Water ring pelletising WR
• Underwater pelletising UW
• Strand pelletiser GR

WiPa Pulverizer

The WiPa disc pulverisers of the WP series are equipped with a stationary and a high-speed toothed disc. The material is fed centrally through the stationary disc into the grinding chamber where it is ground. The final fineness of the material is controlled by the structure of the toothed discs and by the adjustable disc spacing. The disc spacing can be controlled through openings provided for this purpose on the machine housing.

The WiPa Pulverizers of the WP series are used for shredding or pulverising hard and soft PVC, as well as LLDPE, LDPE, HDPE, PP and other types of plastic. Almost all plastics can be processed up to 500micron.

 

Overview

• Special disc design
• Pane distance control possible outside the machine
• Large maintenance opening at the front of the machine for e.g. cleaning or maintenance work.
• Special feeding system to ensure direct processing and continuous feeding of the material
• Automatic temperature control by sensor-controlled cooling unit.
• Safety switch which allows the system to be opened only after the discs have come to a standstill.
• Dosing unit with a volume of approx. 50 litres at the material inlet.
• Options such as metal separator, vibrating screen, etc.

 

Advantages of the WiPa Pulverizer

• Hardly any heat development, therefore gentle to the material
• Robust, durable design
• Easy operation and maintenance
• Automatic cooling unit for sensitive materials
• High throughput rates
• Low energy costs
• Low operating costs
• The three variants have a drive power of 22, 55 and 90 kW.

WiPa fine mill

The WiPa fine mills of the FG series are used for the size reduction or pulverisation of plastics.

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How you benefit from Spare parts by CUTMETALL

CUTMETALL products: More than a spare part! Tuning for your machine!

Our spare parts and wear parts are not original equipment manufacturer items (original parts of the machine manufacturers) but rather process-optimized CUTMETALL own brands: A perfect fit. Durable. Economical.

CUTMETALL - partner, problem solver, and process optimizer for the recycling and shredding industries.