PE Film Washing Line | Plastic Film Recycling Washing System

PE film is one of the most common recyclable plastic waste streams in modern recycling plants. It includes waste film, agricultural film, garbage film, packaging film, and other flexible film materials. Because this material is light, contaminated, a standard washing process is usually not enough. A dedicated PE film washing line is designed to solve exactly this problem: it turns mixed and dirty film into clean reusable flakes through crushing, washing, separating, and drying.  

From a recycling engineering perspective, the value of a PE film recycling line is not only “washing” but also “stabilizing the downstream quality.” Dirty film is difficult to feed, difficult to dewater, and difficult to pelletize if moisture and contaminants remain high. That is why the process has to be designed as a complete system, not a single machine.

Process flow: from waste film to reusable material

A typical PE film washing system follows a clear sequence: feeding, crushing, intensive washing, float-sink separation, dewatering, and thermal or mechanical drying.Waste film is first crushed into smaller fragments, then sent into cleaning equipment to remove dirt and impurities, followed by separation and drying stages. The final output is a clean raw material that can be reused in later processing.

The logic behind this workflow is straightforward. Large film sheets are hard to wash evenly, and they tend to wrap around shafts and screens. Crushing solves the size issue; friction washing solves the surface contamination issue; floating washing helps separate lighter impurities; dewatering and squeeze drying reduce moisture so the material can move into pelletizing or other next-step processing with less risk. This is why the line is best understood as a “film recycling line” rather than a standalone washer.

Key equipment in the line

1. Belt conveyor:The belt conveyor provides automatic transport of plastic film to the crusher. It can directly and automatically feed material into the crushing section, which reduces manual handling and improves line continuity. In practice, this is important because film materials are often bulky and uneven; stable feeding helps the entire PE film washing machine run more smoothly.
2. Plastic crusher:The crusher turns large film bundles into smaller pieces. Improving washing performance and making the final product easier to pack. For PE film recycling, crushing is not a secondary function; it is the foundational step that determines whether the rest of the line can operate efficiently. The product images clearly show the crusher as a major front-end machine in the system.
3. High-speed friction washer:The high-speed friction washer is used for contaminated plastics and persistent dirt. This machine is positioned for mixed plastics with high contamination or stubborn impurities. In a PE film washing line, the friction washer is critical because film often carries soil, dust, labels, and organic residue after collection and storage.
4. Floating washer:The floating washer is used to wash out floating caps, rings, and dirt from bottle flakes; in a film line, it also helps separate light impurities and carry contamination away with water flow. Shows this module as part of the wet-cleaning sequence, reinforcing the idea that the line uses water-based separation in combination with mechanical cleaning.
5. Horizontal dewatering machine:The horizontal dewatering machine removes water from film or flakes. This step is essential because film has a large surface area and tends to retain moisture. If dewatering is insufficient, the downstream process becomes unstable and energy consumption increases. Identifies this machine as the module that removes water from film and flakes.
6. Squeeze dryer:The squeeze dryer reduces both moisture and volume. This improves pellet quality and also enhances extruder efficiency. In other words, the squeeze dryer is not just a drying device; it is a process optimization machine that prepares washed film for the next stage with less thermal burden and better density control.

Technical parameters and capacity selection

Dajiang Machinery lists five standard capacity ranges for the PE film washing line: 200–300 kg/h, 300–500 kg/h, 500–1000 kg/h, 1000–1500 kg/h, and 1500–2000 kg/h. The corresponding steam consumption, additive consumption, water consumption, installation power, and floor space all increase as throughput grows. These figures are useful for early-stage plant planning because they help users match utility conditions with target output.

• 200–300 kg/h: steam 150 kg/h, additive 8 kg/h, water 0.5 ton/h, installed power 160 kW, floor space 400 m².
• 300–500 kg/h: steam 200 kg/h, additive 10 kg/h, water 1.2 ton/h, installed power 220 kW, floor space 500 m².
• 500–1000 kg/h: steam 300 kg/h, additive 12 kg/h, water 3 ton/h, installed power 350 kW, floor space 700 m².
• 1000–1500 kg/h: steam 500 kg/h, additive 15 kg/h, water 4 ton/h, installed power 400 kW, floor space 900 m².
• 1500–2000 kg/h: steam 800 kg/h, additive 18 kg/h, water 5 ton/h, installed power 480 kW, floor space 1200 m².

For project selection, the number alone is never enough. Engineers also need to evaluate contamination level, moisture content, soil load, label content, and whether the downstream process demands very high cleanliness. In other words, even though all of these systems are called PE film washing lines, agricultural film, packaging film, and waste film can impose very different process loads.

Application scenarios

The line is suitable for waste PE film, agricultural film, garbage film, plastic film, and packaging film. This means the equipment is designed for broad film-recycling use rather than a narrow single-material application.

A well-designed plastic film washing line is valuable in several downstream channels. That recycled particles can be used for film blowing, garbage bags, injection molding, turnover boxes, and pipe manufacturing. This is a key business point: the cleaner the output, the wider the reuse path and the better the commercial flexibility.

Main advantages

Four important advantages: multi-stage washing removes impurities efficiently; an anti-winding shredder plus anti-static device helps solve film entanglement and static adsorption; recycled particles can be used in multiple industries; and automatic control reduces manual intervention while improving productivity. These advantages explain why PE film washing systems are increasingly adopted in modern recycling plants.

From a technical standpoint, the anti-winding and anti-static design is especially important. Film materials do not behave like rigid plastics: they are light, flexible, and prone to bridging, wrapping, and clumping. When a line can address these issues at the front end, the rest of the process becomes easier to stabilize, which improves the yield of clean recycled material.

How to choose the right PE film washing system

When selecting a PE film washing machine, the first question should be feedstock composition. Is it agricultural film with high soil content, packaging film with labels and printed layers, or waste film mixed with moisture and dust? The second question is target product quality: will the cleaned output go directly to pelletizing, or is there a stricter purity requirement? The third question is utility readiness: water, steam, power, and plant area must all fit the line size. The published parameter table gives a practical starting point for this decision process.

A good engineering rule is simple: do not oversize the line only by chasing maximum capacity. Instead, match the line to realistic raw material conditions and operating costs. In film recycling, a balanced configuration is usually better than an aggressive one, because excessive utility demand can make the project harder to operate sustainably.

Conclusion

The PE film washing line is not a single machine but a complete recycling process engineered for a difficult material stream. Dajiang Machinery’s product page shows a full solution that includes feeding, crushing, washing, separating, dewatering, and drying, with capacities ranging from 200 kg/h to 2000 kg/h and downstream applications that cover film blowing, injection molding, and pipe manufacturing. For any recycling business dealing with flexible film waste, this type of line is one of the most practical ways to convert low-value waste into reusable raw material.