Welcome to discuss your project requirements.
Welcome to discuss your project requirements.
The Wood-Plastic Composite Pallet Production Line is an integrated equipment system dedicated to the production of Wood-Plastic Composite Pallets. It mixes wood powder, plant fiber (such as straw, rice husk, etc.) with thermoplastic plastics (such as PE, PP, PVC, clothing fiber), and forms high-strength, corrosion-resistant pallet products through high-temperature extrusion or molding. Its core technology combines the natural characteristics of wood with the processing performance of plastics, replacing traditional wooden pallets and meeting the needs of the 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
Process plan for preparing wood-plastic mixture by mixing wood and clothes plastic
I. Raw material pretreatment
Wood part treatment: Crush the wood into wood powder with a particle size of 1-16mm, and reduce the moisture content to less than 3% by drying. Optionally add coupling agents (such as silanes) to enhance the interfacial bonding between wood fiber and plastic.
Fiberization treatment of old clothes: Old clothes need to remove metal accessories (such as buttons and zippers), cut into pieces, and crushed into short fibers (length ≤5mm). If the clothing contains synthetic fibers (such as polyester and nylon), it can be directly used as a source of thermoplastics; if it is natural fibers (cotton and linen), PE/PP plastic particles (accounting for 30-50%) need to be added as a binder.
II. Mixing process
Ingredient ratio
Basic ratio: wood powder (50-70%), clothing fiber (20-30%), plastic particles (10-20%).
Functional additives: Add 2-5% antioxidant (such as DLTP) and 1-3% lubricant (zinc stearate) to improve processing stability.
Mixing method
Dry mixing : Stir wood powder, clothing fiber, and plastic particles in a high-speed mixer for 10-15 minutes (temperature 60-70℃).
Melt blending (applicable to clothing containing synthetic fibers): Heat the mixture to 180-200℃ through an extruder to melt the plastic and combine it with the wood fiber.
III. Compression molding
After the mixture is loaded into the mold, a hydraulic press is used to heat-press and shape it at a pressure of 22MPa (mold temperature 50℃, pressure holding for 6 minutes). After the finished product is cooled and demolded, it can be cut into a specific shape for making pallets, plates, etc.
This solution combines the recycling of waste clothing and wood, and takes into account both environmental protection and functionality through process adaptation.
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.
