 |
| Quantity: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Product Description
The Pre-Washer Machine is an essential pre-treatment unit in modern plastic recycling systems. It is specially designed to remove heavy contaminants such as sand, soil, gravel, mud, labels, organic residue, and small metal particles before the material enters the friction washer, sink-float tank, or granulation stage.
At Zhangjiagang Chenxing Machinery Co., Ltd., our Pre-Washer is engineered for high-contamination plastic waste streams including agricultural films, PP woven bags, raffia scraps, PET bottles, HDPE containers, and post-consumer plastic waste. By eliminating abrasive impurities during the early stage of recycling, the pre-washer significantly reduces downstream equipment wear, lowers maintenance costs, and improves final recycled plastic quality.
For plastic recycling plants targeting stable output quality, energy efficiency, and long-term operational reliability, the pre-washer is one of the most important machines in the entire washing line.
In real recycling environments, waste plastics are rarely clean. Agricultural films often contain mud and sand. Post-consumer PET bottles may contain stones, labels, food residue, and metal contaminants. If these impurities directly enter shredders, friction washers, or pelletizing systems, they can cause:
Excessive machine wear
Increased blade replacement frequency
Higher energy consumption
Reduced washing efficiency
Lower recycled plastic purity
Frequent machine downtime
The Pre-Washer Machine acts as the first defense system in the recycling line by removing large and abrasive contaminants before intensive processing begins.
This greatly improves the efficiency and lifespan of the entire recycling plant.
The Chenxing Pre-Washer is suitable for a wide range of plastic recycling applications:
Agricultural film recycling line
HDPE bottle recycling line
Municipal plastic waste recycling
Post-consumer plastic waste processing
Rigid plastic washing systems
It performs especially well when handling heavily contaminated materials with high percentages of dirt, sand, and stones.
The pre-washer system consists of:
Feeding hopper
Heavy-duty auger screw
High-torque drive motor
Water injection system
Screening and discharge structure
After plastic waste enters the hopper, the rotating auger pushes the material forward while water is continuously injected into the chamber.
During transportation, the materials are scrubbed against the internal screens and auger surfaces. Dirt, mud, sand, gravel, and small contaminants are separated and discharged from the bottom outlet.
The cleaned plastics then move to the next recycling stage such as:
Shredding
Friction washing
Sink-float separation
Dewatering
Pelletizing
This process dramatically improves downstream washing efficiency and protects expensive recycling machinery.
The machine is specifically designed for highly contaminated plastic waste streams. It efficiently removes soils, sands, gravels, and metal fragments before further processing.
The reinforced screw auger ensures stable conveying performance even under harsh recycling conditions.
Removing abrasive materials early helps extend the service life of shredders, granulators, and friction washers.
The intelligent auto-reverse function helps prevent auger jamming during overload conditions, improving operational safety and machine reliability.
The optimized washing structure reduces water consumption while maintaining excellent cleaning performance.
Chenxing Machinery can customize the pre-washer size, motor power, and throughput according to customer material conditions and production requirements.
Compared with traditional simple washing systems, a professional pre-washer delivers major operational benefits:
| Feature | Benefit |
|---|---|
| Early contamination removal | Protects downstream machines |
| Reduced abrasive particles | Lower maintenance cost |
| Improved washing efficiency | Higher recycling output |
| Stable material flow | Better automation |
| Lower moisture contamination | Improved pellet quality |
| Heavy-duty structure | Long service life |
The PW Series Pre-Washer can process:
LDPE agricultural film
LLDPE stretch film
PP woven bags
Jumbo bags
PET bottles
HDPE detergent bottles
Household plastic waste
Industrial plastic scrap
With more than 20 years of experience in plastic extrusion and recycling machinery manufacturing, Zhangjiagang Chenxing Machinery Co., Ltd. provides complete recycling solutions for global customers.
Our advantages include:
Professional engineering team
Customized recycling line design
Stable machine quality
Global installation support
Competitive factory pricing
Rich export experience
Fast spare parts support
Our machines are widely exported to Southeast Asia, the Middle East, Europe, Africa, and South America.
The Pre-Washer Machine is typically installed after the belt conveyor and before:
Shredder or Crusher
Friction Washer
Sink-Float Tank
Centrifugal Dryer
Pelletizing Machine
This layout ensures maximum cleaning efficiency and protects the entire recycling system.
A pre-washer machine is used to remove heavy contaminants such as sand, soil, gravel, and organic residue from waste plastics before further recycling processing.
It can process PE films, agricultural films, PP woven bags, PET bottles, HDPE containers, and heavily contaminated post-consumer plastics.
Pre-washing helps reduce equipment wear, improve washing efficiency, lower maintenance costs, and improve final recycled plastic quality.
Yes. Chenxing Machinery can customize machine dimensions, motor power, throughput capacity, and washing configuration according to customer requirements.
Yes. It is widely used in PET bottle recycling lines to remove sand, labels, stones, and organic contaminants before crushing and hot washing.
Yes. The machine includes an automatic reverse system to prevent auger blockage and motor overload.
If you are planning to build or upgrade a plastic recycling plant, Chenxing Machinery can provide a complete customized recycling solution based on your raw materials and production capacity requirements.
Contact us today for:
Machine quotation
Recycling line layout
Technical consultation
Video demonstrations
Factory testing support
