Welcome to discuss your project requirements.
Welcome to discuss your project requirements.
The Wood-Plastic Composite (WPC) Pallet Production Line is a fully integrated equipment system designed for the high-performance manufacturing of WPC pallets. This production line combines wood powder, plant fibers (such as straw and rice husks) with thermoplastic materials (including PE, PP, PVC, and recycled clothing fibers). Through high-temperature extrusion or compression molding, it produces pallets that are exceptionally strong and corrosion-resistant.
The core technology synergizes the natural properties of wood with the processability of plastics, offering a sustainable alternative to traditional wooden pallets and supporting the principles of a circular economy.
1. Core Equipment
Extrusion Molding System: Single/Twin Screw Extruder is used to achieve melt blending and continuous extrusion of wood-plastic mixture, and temperature is controlled in stages (150-200℃).
Molding Hydraulic System: Equipped with a 1600-2000 ton press for pallet shaping and curing (pressure holding time ≥6 minutes).
2. Auxiliary equipment
Pretreatment equipment: wood powder dryer (moisture content ≤3%), used fiber crusher (particle size ≤5mm);
Post-processing module: CNC saw (precision cutting), slotting machine (efficiency increased by 10 times), nailing machine (component assembly).
Automation auxiliary equipment: Including automatic paving machine, ejection and stacking device to reduce manual intervention
This solution covers the complete process from raw materials (waste wood and used clothing) to finished pallets.
I. Raw material pretreatment
Wood Powder Preparation: Wood is crushed to a particle size of 1–16mm and dried to reduce moisture content to below 3%. Coupling agents (e.g., silanes) can be optionally added to enhance the interfacial bonding between wood fiber and the plastic matrix.
Clothing Fiberization: Metal accessories (buttons, zippers, etc.) are first removed from used clothing. The fabric is then cut and crushed into short fibers (length ≤5mm). If the clothing contains synthetic fibers (e.g., polyester, nylon), it can serve directly as a thermoplastic source. For natural fibers (cotton, linen), PE/PP plastic pellets (accounting for 30–50% of the mix) must be added as a binder.
II. Mixing & Compounding Process
Base Formulation: Wood powder (50–70%), clothing fiber (20–30%), plastic pellets (10–20%).
Functional Additives: Incorporate 2–5% antioxidant (e.g., DLTP) and 1–3% lubricant (zinc stearate) to improve processing stability and product durability.
Mixing Methods:
Dry Mixing: Wood powder, clothing fiber, and plastic pellets are blended in a high-speed mixer for 10–15 minutes at 60–70°C to ensure uniform distribution.
Melt Compounding: The dry mixture is heated to 180–200°C in an extruder, fully melting the plastic and achieving molecular-level bonding with the wood fiber under shear force.
III. Compression molding
The compounded material is precisely loaded into a mold. The hydraulic press applies a pressure of 22MPa at a mold temperature of 50°C, with a holding time of 6 minutes to ensure complete curing. After cooling and demolding, the product can be cut to specific sizes for pallets, boards, or other applications.
Core Value Proposition: This solution integrates the recycling of waste clothing and wood. Through adaptive process engineering, it balances environmental benefits with the functional performance required for industrial applications.
Main Machines of Production Line: Wood Chipper, Wood Crusher, Drying Machine, Glue Mixer, Presswood Pallet Machine, Mold Temperature Controller.
Automatic material spreading, automatic hot pressing, automatic push-out and automatic stacking. can produce 180 pieces of wood pallet per hour.
Fully automated production solutions. In the entire production line, only one or two staff members are needed to handle normal operations.
Reusing waste wood, sawdust, wood chips, straw, coconut fiber (coir) and other fibers can significantly reduce the cost of raw materials.
The pressed wood pallet is of high quality with smooth surface, high loading capacity, good performance in water proof resistance and non-fumigation.
By simply changing the compression molding, pallets in varied shapes/sizes could be produced. Meet the needs of various uses.
Heat sources can be supplied in a variety of ways. The energy consumption is low. It is an ideal option to recycle wood waste in an environmentally friendly way.
According to the customer's actual requirements, raw materials and use of customized solutions
Own production base, strict production standards and processes, professional quality control.
Engineers track the entire service, install and commissioning the equipment to ensure successful operation.
Provide technical support, technical service, technical training, after-sales service.
