China pe pipe production line Manufacturer, Supplier, Factory

Parallel twin-screw extruder is necessary equipment for WPC granulation machine because of its strong mixing, stable feeding, excellent venting and precise temperature control. It ensures uniform pellets, no bubbles, no scorch, and finally produces high-quality WPC decking with stable output.

our company has recently completed a successful technical trial for manufacturing high-performance wood-plastic composite (WPC) products using coconut shell as a raw material. Leveraging our self-developed wood powder milling equipment, we achieved standardized pulverization, granulation, and extrusion molding of coconut shells, officially validating the feasibility of repurposing coconut shells for WPC Decking production and expanding the range of diversified raw material applications within the WPC industry.

We have achieved a major technical milestone today with the successful commissioning and full performance testing of our new customized 50mm thick solid plastic lumber machine. This professional complete plastic lumber extrusion line is independently configured and optimized for thick solid plastic board production, specially designed for recycling and reusing waste PE (polyethylene) and PP (polypropylene) mixed plastic materials. The line is capable of stably producing standard 200mm-wide, 50mm-thick full-solid plastic boards, marking a key breakthrough in our high-value waste plastic recycling and thick profile precision manufacturing capacity.

Yongte workshop has successfully launched the on-site installation and commissioning work of a customized 92/188 conical twin-screw extruder, marking another solid progress in the company’s high-end extrusion equipment customization and delivery project.

The common surface quality defects of WPC doors are closely related to raw material formula, auxiliary matching and production process parameters. Yellowing is dominated by thermal oxidation and auxiliary mismatch, streaks are caused by uneven mixing and insufficient plasticization, and brittle cracking is mainly attributed to excessive shear, overhigh temperature and unreasonable filler dosage. Through targeted temperature adjustment, formula optimization, process parameter matching and mixing process upgrading, the above defects can be effectively eliminated, so as to significantly improve the surface quality, mechanical performance and market competitiveness of WPC door products.

In addition to energy saving of 15–20% and efficient waste recycling (recycling PP/PE, wood powder, glass fiber, PCB waste, old clothes and other materials to turn waste into high-value products), our WPC decking machine has multiple core advantages that meet the needs of global buyers.