PP hollow grid sheet machine, also known as PP calcium plastic hollow board machine, PP corrugated board machine, its products can be divided into ordinary mouth type, rice type, S type, etc.also do two-layer co-extrusion and three-layer co-extrusion.

Mainly produces the bottom plate of environmental protection hollow grid box with thickness of 2mm to 5mm.

The hollow board is a kind of green environmental protection material. It is made of PP food grade raw material polypropylene. It is light in weight and easy to take. It is non toxic and tasteless, and is not afraid of rain. It is wear resistant and corrosion resistant, and can be recycled many times. It is widely used abroad and gradually to replace some corrugated packaging materials, some domestic enterprises are also developing and using them as building decoration materials.

Production line composition as below:

1. Single screw extruder

2. Mesh change

3. Extruder die head and mould

4. Vacuum sizing table

5. Six roller haul off

6. Drier

7. Cooling bracket

8. Cutting device

9. Three roller haul off machine

10. Transverse cutting machine

11. Stacker