Compacting
WIPA Plast Compactor
Type PC
WIPA Plast Compactor
The procedure
If the conveyor elements move backwards, the conveyor elements contact each other and slide backwards through the material with little resistance. Very little material is retracted and the WiPa system consumes up to 75% less energy than conventional systems. While conveyor rails 1 and 3 move forwards, rails 2 and 4 move in the opposite direction. This takes place in continuous alternation. Thanks to the modular design of the containers, sizes from 6 to 1000m3 can be produced on the basis of identical or similar parts. The Silos can also be upgraded at a later date with little effort.
Gentle compaction
The thermal effect on the material in the WiPa Plast Compactor is much lower than with conventional agglomerators, which work in a discontinuous process, or extruders, as the material only remains in the WiPa Plast Compactor for a few seconds. The melting point is not reached here, as the material is only brought to a doughy state and determines itself when it leaves the panes.
The agglomerate
During the process, finger-sized agglomerates are produced, which are cut to the desired particle size in a downstream granulator. The size of the agglomerate is defined by a sieve installed in the granulator. To cool down the material and avoid the formation of dust and fines in the end product, the agglomerate is sent through a fines separation and fines return unit before it reaches the Silos or Big Bags.
Agglomeration and drying
The WiPa Plast Compactor is generally used to increase the bulk density of plastics. Nevertheless, it is used in other areas, for example to efficiently dry the material after a washing line. During the process, the material is heated so that moisture evaporates and the material moisture is reduced to approx. 0.1%. In this state, the material is ready for further processing in an extruder or injection molding machine.
Compounding
Additives and fillers such as colorants, plasticizers, etc. can be fed directly to the Plast Compactor’s feed screw via the special dosing units. The material is heated and homogenized in the agglomeration process so that the fillers can be absorbed. This achieves an even distribution of additives and fillers in the plastic, which enables an improved combination of properties in the end product.
Crystallization of pet regrind
The WiPa Plast Compactor is ideal for crystallizing PET regrind, for example after a hot wash. The material is heated until it takes on a doughy state. The crystallization of PET begins at a temperature of approx. 120 – 140°C, which the WiPa Plast Compactor reaches quickly and gently. The viscosity value remains almost unchanged, as the melting point is not reached during the process. This enables efficient crystallization of the PET material, which leads to an improved quality of the end product.
The procedure
Type PC 700
Technical data
PC 300 | PC 500 | PC 600 | PC 700 | PC 850 | PC 1400 | ||
Main drive kW | 30 – 75 | 75 – 160 | 110 – 200 | 160 – 315 | 315 – 630 | 400 – 1000 | |
Bulk density | g/l | ||||||
Throughput | kg/hour | kg/hour | kg/hour | kg/hour | kg/hour | kg/hour | |
HDPE | 370 | 280 – 350 | 480 – 700 | 750 – 1200 | 1150 – 2000 | 1700 – 3000 | 2500 – 4000 |
PE film | 350 | 200 – 500 | 500 – 800 | 750 – 1150 | 800 – 1600 | 1200 – 2100 | 2000 – 3500 |
PE foam | 350 | 200 – 500 | 400 – 700 | 700 – 1050 | 750 – 1400 | 1000 – 1650 | 2000 – 3200 |
PP fleece | 390 | 150 – 300 | 400 – 700 | 700 – 1250 | 750 -1400 | 1050 – 1850 | 2000 – 3100 |
PS Foil | 460 | 150 – 300 | 300 – 700 | 700 – 1200 | 750 – 1300 | 1100 – 1900 | 2150 – 3250 |
EPS | 500 | 180 – 300 | 300 – 700 | 700 – 1200 | 750 – 1200 | 1000 – 1600 | 1900 – 2700 |
PVC film | 600 | 250 – 400 | 300 – 700 | 750 – 1250 | 800 – 1500 | 1150 – 1850 | 2100 – 3100 |
PVC foam | 500 | 250 – 400 | 300 – 700 | 700 – 1200 | 800 – 1450 | 1000 – 1650 | 1850 – 2700 |
PET film | 600 | 200 – 300 | 600 – 900 | 750 – 1350 | 800 – 1700 | 1150 – 2150 | 2100 – 3400 |
PET fibers | 600 | 150 – 300 | 400 – 600 | 750 – 1100 | 850 -1450 | 1200 – 1750 | 2000 – 2600 |
PET foam | 550 | 100 – 250 | 250 – 600 | 550 – 1000 | 650 – 1100 | 1000 – 1550 | 1700 – 2400 |
PET fleece | 600 | 200 – 350 | 400 – 700 | 650 – 1250 | 800 – 1750 | 1100 – 2150 | 1800 – 2600 |
PET regrind (bottles) | 550 | 200 – 400 | 400 – 1000 | 700 – 1300 | 950 – 1800 | 1380 – 2200 | 2400 – 3900 |
PA Foil | 430 | 150 – 300 | 400 – 900 | 650 – 1250 | 850 – 1650 | 1200 – 2100 | 2150 – 3400 |
PA 6 / 6.6 fibers | 450 | 150 – 250 | 400 – 900 | 650 – 1050 | 800 – 1250 | 1000 – 1700 | 2000 – 3200 |
Carpet waste | 390 | 100 – 250 | 350 – 600 | 600 – 1000 | 800 – 1200 | 1000 – 1600 | 1900 – 2900 |
Synthetic rubber | 420 | 150 – 400 | 250 – 700 | 650 – 1500 | 800 – 1850 | 1100 – 2200 | 2100 – 3200 |
Wood-plastics | 350 | 150 – 350 | 250 – 600 | 650 – 1350 | 800 – 1650 | 1000 – 1900 | 2000 – 300 |
Throughput rates and technical data are based on experience and may vary depending on the material.
Bunkering and distribution
WIPA Silo
Type S
With a WiPa dosing container, a wide variety of materials such as film chips, fibers, foams, etc. are reliably fed to the downstream processes with only a small amount of energy. The success of the WiPa dosing containers lies in the innovative conveyor rails, which fold out at the pushers during the forward movement of the conveyor rails, thus conveying the material powerfully in the discharge direction.
WIPA Silo
The procedure
If the conveyor elements move backwards, the conveyor elements contact each other and slide backwards through the material with little resistance. Very little material is retracted and the WiPa system consumes up to 75% less energy than conventional systems. While conveyor rails 1 and 3 move forwards, rails 2 and 4 move in the opposite direction. This takes place in continuous alternation. Thanks to the modular design of the containers, sizes from 6 to 1000m3 can be produced on the basis of identical or similar parts. The Silos can also be upgraded at a later date with little effort.
See for yourself:
This machine offers these advantages
- Electrical control of the hydr. components, the discharge screw and the opening roller are installed directly on the Silo
- Discharge rate in the standard version approx. 10m3/hour, which can be extended up to approx. 100m3/hour
- No bridging
- Silo practically infinitely expandable
- Approx. 75% energy saving compared to conventional systems
Type S 50
Technical data
S 7 | S 10 | S 16 | S 20 | S 50 | S 50 | S 75 | S 100 | S 120 | S 150 | S 200 | |
Volume m³ | 7,1 | 10,6 | 15,9 | 21,2 | 28,2 | 51 | 73,7 | 96,4 | 120,5 | 147,4 | 192,8 |
Width m | 1,4 | 1,4 | 2,1 | 2,1 | 2,8 | 2,8 | 2,8 | 2,8 | 3,5 | 2,8 | 2,8 |
Length m | 3,6 | 3,6 | 3,6 | 3,6 | 3,6 | 6,5 | 9,4 | 12,3 | 12,3 | 9,4 | 12,3 |
Height m | 1,4 | 2,1 | 2,1 | 2,8 | 2,8 | 2,8 | 2,8 | 2,8 | 2,8 | 5,6 | 5,6 |
Throughput rates and technical data are based on experience and may vary depending on the material.
Bunkering and distribution
Wipa Press Agglomerator
Type WPA
With a WiPa dosing container, a wide variety of materials such as film chips, fibers, foams, etc. are reliably fed to the downstream processes with only a small amount of energy. The success of the WiPa dosing containers lies in the innovative conveyor rails, which fold out at the pushers during the forward movement of the conveyor rails, thus conveying the material powerfully in the discharge direction.
WIPA Press Agglomerator
Automatic distance adjustment
The automatic distance adjustment of the pan grinder impellers to the die surface allows the material friction process (with heat factor) for compaction to be shifted to the pan grinder chamber instead of in the die bores and enables changes in the quality of the pellets during operation. This friction shift enables significant tool savings by eliminating the need for adapted die thicknesses for a fixed pellet quality.
With the automatic distance adjustment, a pelletizing process can be carried out that produces a homogeneous final pellet from different input pellets, which is important for the pellet and pellet quality.
The frictional conditions make it possible to break down composite materials in a way that would otherwise be difficult. The latter process is mainly used with short die holes of 10 – 16 mm.
Automatic control of the speed of the roller impellers
The speed of the pan grinder impellers is controlled fully automatically and synchronized with the infeed. Recipe preselection for a specified PELLET quality. Recipes enable variable material distribution between the pan grinder wheels and variable material strokes in the die and ensure consistent pellet quality.
Die cooling
If the temperature specification is exceeded, cooling with an adjustable die range is automatically switched on. If the material pressure between the pan grinder and die does not drop to the specified pressure, e.g. with wood, paper and biowaste, a liquid/water mist device with adjustable dosing can be switched on automatically. In addition, other liquids can be added to enhance the pelleting process.
Cooling
- Activation of the die cooling device according to the temperature specification range
- Connection of water mist device
Pellet length
The speed of the knock-off device located under the die can be infinitely adjusted,
This allows different individual lengths of pellets to be generated.
Function monitoring
Automatic function monitoring with oil cooling, overload protection with soft start included. Reversing control of the roller head is standard. A round silo with discharge cone and coreless, power-controlled discharge screw is used to ensure uniform dosing of the material quantity.
Outstanding processing diversity
– Powdery materials
– fibrous materials
– pasty materials, such as food and animal feed
– Chemicals
– Plastics
– fibers
– Foamed materials
– Wood and sawdust
– Thermoplastic and non-thermoplastic materials
– Paper and cardboard packaging
– Textiles
– Fabric
– Cellulose
– Dusts of all kinds
– Metals, such as aluminum, copper
Technical data
Drive motor | 37 – 45 KW |
Drive unit | mechanical |
Die diameter | 600 mm |
Roll diameter | 250 mm |
Die hole diameter | 4 – 16 mm |
Pellet length | 5 – 25 mm |
Weight | approx. 1800 kg |
Throughput | up to 600 kg/h input |
(depending on bulk density and pellet diameter) |
Throughput rates and technical data are based on experience and may vary depending on the material.
