WPC.Asia - professional manufacturer of advanced wood-plastic composite (WPC) machinery in China

New design
New design

PVC wood-plastic composite (WPVC) profile extrusion line

Equipment type: 

PVC wood (WPC) extrusion line is based on counter-rotating conical twin screw extruders 65/132, 80/156 specially designed for PVC-based wood polymer composites, both foamed and solid.

Foamed WPC lumber is ideal for indoor decorative applications (WPC picture frames, blinds, skirting etc.), WPC doors frames, wall and floor panels, ceilings etc. With proper formulations and extrusion process they can also be used outdoors. Solid (un foamed) WPC profiles are typically intended for outdoor application (WPC cladding, WPC decking, WPC fencing etc.).

PVC+wood (WPC) extrusion technology in brief

  • WPC formulation components (wood powder + PVC+ additives) are mixed in two-stage high speed hot-cold mixer. Dry-blend lets down for a while.
  • WPC dry-blend is sent to autoloader and conveyed into extruder feeding hopper.
  • Extruder mixes and melts WPC blend which is forwarded to and pushed through the extrusion mold that shapes profile into designed form. Vacuum and cool water help to complete shaping. You just need to change extrusion mold to make different WPC product.
  • WPC extruder is followed by downstream in-line units (calibration table, haul-off unit, cutter and stacker).

Post-treatment of extruded profile

  • belt sanding
  • brushing
  • hot stamping
  • lamination / film wrapping
  • printing

Machinery features & benefits

  • Modern stronger base frame extruder with new type vertical reducer operates steady, safe, noiseless and has prolonged lifetime. Customer can choose extruder design (compact or standard).
  • The barrel and screw pair made of corrosion and wear resistant steels with nitriding as well as additional bimetallic end treatment. Oil cooled screw is made with high precision machinery according to special design to comply with the requirements of gentle shearing of PVC-based WPC.
  • Customer can choose operation panel type, button or PLC control.

General technical specification

Extrusion line model⇒
Property
WA-XCV65/132-240 WA-XCV80/156-300
Output, kg/h (max) 120-180 (depends on extruder modification, profile type&size, other tech factors (formulation, process, raw material quality) 120-300 (depends on extruder modification, profile type&size, other tech factors (formulation, process, raw material quality)
Screw diameter 65/132 80/156
Raw material Blend of PVC + wood powder + additives made with mixer Blend of PVC + wood powder + additives made with mixer
Finished product

Standard WPC lumber (typically hollow & solid): decorative strips, planks, skirting, blinds, decking, wall panels

Foaming: applicable

Width: 240mm (standard), up to 300mm (optional)

Length: limited by stacker length (6m as standard)

Color: any, in mass (depending on pigments used)

Typical density: 700-1400kg/cbm (depends on formulation and process condition)

Standard and bigger WPC lumber & panels (hollow & solid): door frames and panels, decking, wall panels

Foaming: applicable

Width: 240mm (standard) up to 600mm (optional with downstream units change)

Length: limited by stacker length (6m as standard)

Color: any, in mass (depending on pigments used)

Typical density: 700-1400kg/cbm (depends on formulation and process condition)