PVC WPC Foam Board extrusion line
| Model | Max Thickness (mm) | Output (kg/h) | Motor Power (kW) |
|---|---|---|---|
| PVC/WPC Foam Board Extrusion Line | |||
| 80/156 | 5–30 | 350–400 | 75 |
| 92/188 | 5–40 | 600–650 | 90 / 110 |
| 80/156 + 65/132 (Co-extrusion) | 5–30 | 400 | 75 + 37 |
When foam board thickness is 5mm-10mm
- Length and width: 1220*2440 or 1220*2800mm normally
- Suitable Extruder Machine model: 80/156 conical twin screw extruder Machine
- Main motor power: 75kw
- Capacity: 350-400kg/h
When foam board thickness is 10-30mm
Normally we will use this thickness board as cabinet and door for furniture:
- Length and width: 1220*2440mmor customerized
- Suitable Extruder Machine model: 80/156 or 92/188 conical twin screw extruder Machine
- Main motor power: 75/90/110kw
- Capacity: 350-600kg/h
Process Flow: Material loader ➡ PVC mixer machine ➡ material loader ➡ conical double screw extruder machine ➡ co-extrusion (optional) ➡ mold (extrusion die head + calibration mold) ➡texture embossing (optional) ➡ vacuum and calibration table ➡ haul off machine ➡cutting machine ➡ automatic stacker ➡ PVC/WPC foam board ➡ lamination machine of PVC film (optional) ➡ final design foam board ➡Inspection ➡ Packing
- Preparation raw materials:
Main raw materials: PVC resin+calcium carbonate+additives+wood powder(optional)
Additives: In order to improve the performance of the pipe, some additives are usually added, such as antioxidants, stabilizers, colorants, etc.
- Extrusion: Add the prepared raw materials to the extruder and extrude them through the extruder. (Extrusion temperature that is too high or too low will affect the performance of the foam board and needs to be strictly controlled)
- Die+Vacuum shaping and cooling: After materials melting inextruder, the materials will come out from die/mold, the rough shape of board is gotten after die head. Them board go through the calibration mold, it will eventually get the size(thickness) we want.
- Haul off and cutting:
After calibration mold, we already get the thickness and the shape we want, by the function of haul off machine, the foam board is pulling forward, when the board length reach the number of settled, the cutting machine will cut the board automatically. Then we get the board size as we want.
- Automatic plate moving machine: this is an optional machine, it is used to move foam board from line to the side, before this is all done by workers, now it is automatically, it helps to reduce the labor cost & error.
- Inspection and Pack:
After we get foam board, we need check the size, thickness, appearance, etc to see if everything meets clients’ requirement. If all is good, we will pack them.
The reference materials and formula for PVC WPC foam board production:
| No | Name | Quantity(Kg) |
| 1 | PVC resin（k value 55-57) | 75 |
| 2 | Calcium carbonate | 75 |
| 3 | Recycled PVC (optional) | 50 |
| 3 | Stabilizer | 3.5 |
| 4 | AC(yellow) foam | 0.5 |
| 5 | NC(White) foam | 2 |
| 6 | PE wax | 0.6 |
| 7 | G60 | 1 |
| 8 | High temperature lubricant (OA6) | 0.6 |
| 9 | Foam regulator | 12 |
During the production process of PVC WPC foam board, clients need pay attention to
Itisbetter to use heavy calcium for the production of PVC foam substrate,because the shrinkage rate of heavy calcium is relatively small;
In addition, addingmore “calcium zinc stabilizer”to the formula can also reducethe shrinkage of the substrate, also this type stabilizer is Environmental friendly.
Try to use good raw materials in production. Good raw materials can ensure product quality and improve product brand influence.
A good operator is very important. He can help customers make production run perfectly, reduce defective products, obtain perfect formulas, and reduce production of finished products. If customers need to get technicians from SHARC, they can contact SHARC and we will help them.
To reduce the cost of production, now more and more clients are using co-extrusion for foam board production, it is ABA three layer board, the middle layer is cheap materials, two outer layers are good materials for hardness and good looking. Eventually it helps to reduce the product manufacturing cost. This process will need two extruder machines, one is for inner layer, another set is for two outer layers.
