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If you import or process post-consumer and post-industrial plastic film, you already know that dirty, mixed PE and LDPE scrap is hard to turn into sellable regrind. A Waste PE HDPE LDPE Film/Bags Plastic Washing Line solves that problem by shredding, washing, and dewatering soft plastic waste until it becomes clean, dry flakes ready for pelletizing or direct film-blowing.
This guide walks through how the line works, what materials it handles, the machines inside it, and what to check before you choose a supplier. Jiangsu Mooge Machine Co., Ltd, based in Zhangjiagang, Jiangsu, China, designs and builds this type of plastic film washing line as part of its broader PE/PP Film/Bags Recycling Line range, for recyclers, converters, and project contractors across North America, Europe, the Middle East, Asia-Pacific, South America, and Africa. Whether you're sourcing your first line or expanding existing capacity, this article gives you the practical detail you need before sending an inquiry.

What Is a PE HDPE LDPE Plastic Film & Bag Washing Line?

A PE HDPE LDPE plastic film and bag washing line is a complete recycling system that shreds, crushes, and washes soft plastic film and bag waste to remove dirt, sand, labels, oil, and other surface contamination. The output is clean, semi-plasticized flakes with a final moisture content of roughly 1–2%, ready to feed directly into pelletizing or further reprocessing.
The line combines mechanical size reduction with multi-stage water washing, so it works on both post-industrial scrap, such as clean production offcuts, and post-consumer waste, such as agricultural film and packaging film with heavier contamination. Most configurations handle between 300 kg/h and 1,000 kg/h, and the capacity can be scaled to match a larger recycling plant.

Materials You Can Process: PE, HDPE, LDPE Film, Bags & Mulch Film

This washing line is built specifically for soft, flexible plastic waste rather than rigid containers. Typical feedstock includes:

• Baled or rolled agricultural mulch film
• Stretch film and pallet wrap
• LDPE and HDPE packaging film
• Loose PE woven bags and packaging sacks
• Drip irrigation tape
• Other post-industrial and post-consumer soft plastic film waste

If your feedstock is mostly rigid plastic, such as bottles, drums, or injection-molded parts, a different line configuration is more suitable. Tell us your material mix and we can recommend the right setup.

Complete Recycling Process Flow: From Baled Film to Clean Flakes

The process starts with a heavy-duty shredder that breaks down baled or rolled film into manageable pieces, followed by a secondary crusher for finer size reduction. The crushed material then passes through a friction washer to strip off surface dirt and sand, before moving into a multi-stage washing system that includes flotation separation, hot washing with chemical reagents, and clean water rinsing. This removes both physical contamination and chemical residue.
The final stage is a squeeze compactor-pelletizer, which mechanically presses out moisture while forming the material into uniform, semi-plasticized flakes ready for storage or direct feeding into a pelletizing line. You can review the full technical specification for this configuration on our Waste PE HDPE LDPE Film/Bags Plastic Washing Line product page.

High-Duty Single Shaft Shredder – Coarse Size Reduction

The High-Duty Single Shaft Shredder is the first machine in the line. It uses wear-resistant blades, a high-torque rotor, and a hydraulic push-feeding system to break down baled film and bags into uniform pieces small enough for downstream processing. This step matters because inconsistent feed size slows down every machine after it — a properly sized shredder keeps the whole line running at rated capacity.

Magnetic Conveyor Belt & Semi-Auto Metal Detector Machine – Ferrous & Non-Ferrous Metal Removal

Before the material reaches the crusher, a Magnetic Conveyor Belt pulls out ferrous metal contamination such as nails, staples, and wire. A Semi-auto Metal Detector Machine then catches both ferrous and non-ferrous metals that the magnet missed. Removing metal at this early stage protects blades and pumps further down the line from damage, which reduces unplanned downtime and maintenance cost — a detail that matters more than it sounds once a line is running production shifts. Material moves between stations on a Rubber Conveyor Belt built for extended service life with minimal maintenance.

Crusher Machine with Water – Wet Crushing for Uniform Flakes

The Crusher Machine with Water reduces shredded film into consistently sized flakes using high-performance cutting blades. Running the crusher wet keeps dust down and improves cutting efficiency, while the uniform flake size that comes out makes the friction washing and flotation stages that follow more effective.

Friction Washer Loader Machine – Removing Dirt, Sand & Adhesive Labels

The Friction Washer Loader Machine combines material loading with high-speed mechanical scrubbing in one unit. It strips off dirt, sand, and adhesive label residue before the material enters the main washing tanks, which reduces the contamination load on every downstream stage and keeps final flake quality consistent. A Screw Loader then feeds material forward at an even, controlled rate.

Sink-Float Washing Tanks – Density Separation for Purer Plastic

The line uses two Sink-Float Washing Tanks, positioned before and after the hot washing stage. Each tank uses water density separation to sink heavier contaminants like sand and stone while letting clean plastic float to the surface for collection. Running this separation twice — once before hot washing and once after — is what allows the line to hit consistent purity levels even with heavily soiled agricultural film.

Hot Washing Tank & High-Speed Friction Washer Machine – Removing Oil and Stubborn Residue

The Hot Washing Tank uses heated water, with adjustable temperature settings for different contamination levels, to break down oils, adhesives, and other residues that cold water alone can't remove. Material then passes through the High-Speed Friction Washer Machine for intensive mechanical scrubbing that clears fine particles still clinging to the flakes. Together, these two stages handle the contamination that ordinary washing tanks leave behind.

Centrifuge Dewatering Machine – Moisture Reduction Before Drying

The Centrifuge Dewatering Machine uses high-speed rotary force to spin excess water off the washed flakes before they reach final drying. Cutting moisture content at this stage reduces the energy load on the squeezer-agglomerator and speeds up overall throughput.

Squeezer Agglomerator Machine – Compacting Film Into Dense, Semi-Plasticized Flakes

The Squeezer Agglomerator Machine combines dewatering, compaction, and agglomeration in a single step. It mechanically presses remaining moisture out of the film while semi-plasticizing the material and forming it into dense, uniform flakes — a format that's easier to store, transport, and feed directly into a pelletizing line.

Storage Hopper & Air Conveying and Packing Silo – Clean, Dust-Free Material Handling

Processed flakes move into a Storage Hopper, which acts as a buffer to keep production continuous, before final handling through an Air Conveying and Packing Silo. This system transports lightweight flakes through enclosed piping rather than open conveyors, which limits dust emissions and keeps the finished material clean until it's packed.

Electric Control Panel – PLC-Based Automation for Reliable Operation

The entire line runs through a centralized Electric Control Panel built on PLC automation, so operators can monitor and adjust the process from one interface rather than managing each machine separately. Custom electrical configurations — different voltage standards, language interfaces, or safety protocols — are available for buyers who need the line to match local regulations.

Waste Water Treatment System – Recycled Water, Lower Operating Costs

A Waste Water Treatment system filters and recycles the process water used throughout the washing line. This cuts overall water consumption, lowers ongoing operating costs, and helps recycling facilities meet local environmental compliance requirements — an increasingly important factor for buyers in regions with strict discharge rules.

ME-300 vs ME-500 vs ME-1000: Capacity, Power & Footprint Comparison

The ME-Series offers a turnkey solution for recycling waste PE, HDPE, and LDPE films and bags, with three standard capacities. Hot washing is optional on every model, so you can add it later if your material gets dirtier over time.

Model	Capacity	Installed Power	Hot Washing	Water Supply	Area Required
ME-300	300 kg/hr	250 KW	Optional	6–8 m³/hr	35m × 4m × 5m
ME-500	500 kg/hr	400 KW	Optional	8–10 m³/hr	35m × 4m × 5m
ME-1000	1000 kg/hr	650 KW	Optional	15–20 m³/hr	50m × 6m × 6m

If your target output sits between these figures, or you need a line larger than 1,000 kg/h, our engineering team can adjust the configuration to match your project rather than forcing you into a fixed model.

Customization Options for Different Projects

No two recycling operations deal with the same contamination level, film thickness, or throughput target, so the ME-Series is built to be configured rather than sold as one fixed package. Common customization requests include:

• Adding or removing the hot washing module based on how contaminated your material typically is
• Adjusting capacity within and beyond the 300–1,000 kg/h range
• Custom electrical configurations for local voltage and safety standards
• Water supply and wastewater treatment sized to local infrastructure

If your project only needs a standalone size-reduction step, such as pre-shredding baled film before it enters a separate washing system, our Plastic Shredder Machine range is worth reviewing as well.

Quality Control and Export Support

Before we recommend a configuration, we ask buyers to share their material photos or samples, target capacity, and local site conditions, since these details directly affect which modules the line needs. Each machine is built and tested at our facility in Zhangjiagang, Jiangsu, before shipment, and our engineering team can adjust electrical and mechanical specifications for different export markets.
For buyers new to importing processing equipment from China, it helps to confirm upfront: installation and commissioning support, spare parts availability, lead time, and after-sales technical response time. These are reasonable questions to raise with any manufacturer during the quotation stage, and we're glad to answer them in detail for your specific project.

Frequently Asked Questions

What capacity do I need for my recycling operation?

It depends on your daily tonnage target and how many shifts you run. The ME-Series covers 300–1,000 kg/h, and larger projects can combine multiple lines or a scaled-up configuration. Share your target output and material type, and we can recommend a suitable model.

Can this line process PE and PP together?

The ME-Series described here is optimized for PE, HDPE, and LDPE film and bags. If your feedstock is mainly PP, or a mix of PE and PP, let us know so we can suggest the right line configuration for that material blend.

What is the final moisture content of the output flakes?

Typically less than 5% after the squeezer-agglomerator stage, which is dry enough for most flakes to go directly into pelletizing or storage without additional drying.

Do you provide installation support after delivery?

Yes. Our after-sales team provides technical assistance to support installation and ongoing operation. We recommend confirming the specific scope of support for your country during the quotation stage.

Can the line be customized for local voltage and water conditions?

Yes. The electric control panel and water/wastewater systems can be configured to match local voltage standards, water availability, and environmental compliance requirements.

How do I get a quotation for my project?

Send us your material type, target capacity, and any photos or samples of your feedstock. We'll review the details and come back with a configuration and quotation suited to your project.

Conclusion

Choosing the right Waste PE HDPE LDPE Film/Bags Plastic Washing Line comes down to matching the machine configuration to your actual material and output goals, not just picking the highest-capacity model available. From the initial shredder through to the squeezer-agglomerator and waste water treatment system, every stage in this line is designed to turn contaminated film and bags into clean, sellable flakes.
If you're evaluating suppliers for your next project, contact our team with your material details and target capacity, and we'll help you find the right configuration, provide a quotation, and answer any technical questions before you commit.