PP PE Film Recycling Plant Suppliers
Source PP and PE film recycling plant equipment from verified B2B manufacturers on Towobo. Polypropylene and polyethylene film recycling plants process post-consumer and post-industrial plastic film waste — shrink film, stretch film, agricultural plastic film, industrial packaging film — into clean recycled pellets or flakes for reuse in film extrusion, fibre production, and injection moulding. This guide covers the specific design requirements for film recycling lines and what to look for in a plant supplier.
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Browse Film Recycling Plant Suppliers on Towobo →Why film recycling plants require specialist design
Plastic film is mechanically very different from rigid plastic — it is light, flexible, and tends to tangle and wrap around rotating machinery. Standard crushing equipment designed for rigid plastic will jam when processing film. Film-specific recycling plants use wet granulators that cut film in water to prevent wrapping, and friction washers with specific internal clearances and rotor designs suited to film flake. The low bulk density of film flake (approximately 20–80 kg/m³ for loose flake vs 300–500 kg/m³ for rigid plastic) means that conveyors, storage silos, and dryers must be sized much larger in volume terms than a rigid line of equivalent throughput by weight. PP film and PE film (LDPE, LLDPE, HDPE film) are both recovered through similar processing routes but have different melting points and processing temperatures — confirm with the plant supplier whether the line is designed for PP, PE, or mixed PP/PE input, as the extruder screw and barrel specification differs.
Input materials — agricultural film, industrial film, and post-consumer film
PP/PE film recycling plants process three main input streams, each with distinct characteristics. Post-industrial PP/PE film waste (trim rolls, off-specification production, wrapping film from logistics operations) is the cleanest and easiest to process — minimal soil or food contamination, consistent composition, suitable for standard friction-wash systems without hot wash. Post-consumer LLDPE/LDPE stretch wrap and shrink film from supermarkets, retail distribution, and industrial users is moderately contaminated — labels, tape, and food residues typically require a friction wash and rinse but may not need hot wash. Agricultural plastic film (mulch film, silage film, tunnel film) is the most challenging — heavily contaminated with soil, sand, and organic matter. Agricultural film lines require a pre-wash drum or trommel, multiple friction washing stages, hot wash capability, and a high-capacity water treatment system. Agricultural film lines typically see 20–40% weight loss of input as contamination removed during washing.
Output quality, pelletising, and market for recycled film material
Clean recycled PP/PE film flake — after washing and drying — can be sold directly to film extruders and injection moulders who can process flake directly. Pelletising produces rPP or rPE pellets that are easier to handle, more consistent in bulk density, and command a higher price per tonne. For a film recycling plant producing pellets, the pelletising extruder (single-screw or twin-screw with filtration) and underwater pelletiser or strand pelletiser complete the line. The market for recycled PP film pellets includes producers of woven sacks, non-woven fabric, strapping, and injection moulded products. The market for recycled PE film pellets includes producers of agricultural film, refuse sacks, construction sheeting, and stretch wrap. Output quality targets and buyer requirements vary — confirm the specification required by your target customers before finalising the washing line design.
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Browse Film Recycling Plant Suppliers on TowoboFrequently asked questions
What is the difference between a PP film recycling line and a PE film recycling line?
PP and PE film require similar washing processes but different pelletising conditions. PE (LDPE/LLDPE) processes at lower temperatures (160–210°C) than PP (210–250°C), and the screw design and temperature profiles of the pelletising extruder differ. Some film washing lines are designed to handle mixed PP and PE input, with downstream density separation (float-sink tank: PP and PE both float but at different depths, making separation in standard water difficult — hot water or brine solutions can improve separation). For high-purity mono-material output, input sorting before the recycling plant is more reliable than density separation within the line.
How do I calculate the required washing line capacity for my film recycling operation?
Estimate your available input volume in tonnes per day (or month), accounting for seasonal variation in agricultural film supply. Divide by planned operating hours per day (typically 16–20 hours for a commercial line) to get the required throughput in kg/hour. Add 20–25% capacity headroom for peak periods and planned maintenance downtime. For agricultural film, apply a contamination factor — if your input film is 30% soil by weight, your 1,000 kg/hour line processes only approximately 700 kg/hour of plastic and produces 700 kg/hour of potential output flake before further processing losses.
What is the water treatment requirement for a film recycling plant?
Film washing — particularly agricultural film — generates process water containing soil, fine particles, dissolved organics, and surfactants (if hot wash is used). This water cannot be discharged directly to drain in most jurisdictions. A water treatment system comprising settling tanks, flotation or filtration, pH adjustment, and in some cases biological treatment is required before discharge. Closed-loop water recycling (settling, filtration, and return to the washing process) minimises water consumption. Confirm your local environmental permit requirements for process wastewater discharge before designing the water treatment system.
What throughput should I expect from a standard PP/PE film washing line?
A small PP/PE film washing line (entry-level, suitable for a startup recycler or supplementary line) typically processes 300–600 kg/hour of input film. A medium commercial line processes 800–1,500 kg/hour. A large line for a major recycling operation processes 2,000–4,000 kg/hour. Throughput is limited by the wettest, most contaminated stage — typically the centrifugal dryer capacity for film. Request a detailed throughput calculation from the plant supplier based on your specific input material density, contamination level, and target output moisture content.
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