PE/PP wood-plastic composite (WPC) extrusion line (One-step)
Advantages of one -step PE/PP WPC profile extrusion line:
1.One-step PE/PP WPC extrusion line specially designed for PE/PP based WPC lumber extrusion.It is a tandem of co-rotating parallel twin screw WPC compounder and single screw WPC profile extruder;
2.No separate WPC pelletizing line required. One step WPC line saves factory area, power, salary costs.
3.No drying needed if wood powder's humidity is within 8%.
Process of One-step WPC extrusion:
1.WPC formulation components (wood powder + PE/PP+ additives) are mixed in two-stage high-speed hot-cold mixer.
2.WPC dry-blend is sent to extruder's autoloader and conveyed into WPC compounding extruderfeeding hopper.
3.Twin screw WPC compounder mixes and melts WPC blend and sends it hot directly to WPC profile extruder.
4.WPC profile extruder forwards the melt to the mold that shapes it into WPC profile of designed form. Cooling water helps to complete shaping. You just need to change WPC extrusion mold to make different WPC lumber product.
5.Profile extruder is followed by downstream in-line units (calibration table, haul-off unit, cutter and stacker).
One-step WPC extrusion line capacity:
1.One-step WPC extruder capacity ranges from 60kg/h (for smaller decorative profiles) to 500kg/h (bigger panels and solid boards).
2.WPC extrusion output depends on extruder modification, profile type&size, other technological factors (formulation, process parameters, raw material quality, operator skills etc.)
3.Extruders are selected based on profile types& sizes to be made. Common WPC lumber production line's capacity ranges within 80-150kg/h making up 4-5sqm/h.
WPC profile general technical data
1.Profile structure: hollow or solid
2.Standard width: up to 240mm (standard max)
3.Thickness/height: up to 120mm (hollow) or on request
4.Profile length: ~4-6m (limited with stacker length)
5.Color (in mass): any (depending on used pigments)
6.Density: 1200-1400 kg/cbm (depending on formulation and other tech factors)
Applicable post-extrusion treatment
1.sanding
2.brushing
3.embossing
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Qingdao Weier Plastic Machinery Co.,Ltd
Contact person:Echo Lee
Mobile: 0086-13583286680
Tel: 0086 85213097
Fax:0086-85205396
Web:weiermachine.en.made-in-china.com or weiermachine.en.made-in-china.com
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