High-Speed Friction Washer
High-speed mechanical scrubbing for removing surface contamination from plastic flakes and films. Cleaning results depend on feedstock type, contamination load, particle size, water quality, and line configuration.
Cleaning Performance
High-speed scrubbing reduces surface residues and fines carryover before downstream separation and drying. Performance depends on contamination type, residence time, water injection, and the incoming material condition.
Surface Contaminant Removal
At 500-600 RPM, rotor paddles create friction against the screen and between particles to dislodge dirt, sand, paper, and residual adhesives. Removal depends on contamination load, particle size, and residence time.
Wear and Bearing Protection
Wear-resistant blades, a balanced rotor, and isolated bearing housings help reduce vibration and limit water ingress. Maintenance intervals depend on operating hours, feed abrasiveness, and contamination level.
Efficient Washing & Dewatering
While its primary role is cleaning, the friction washer's high-speed action and perforated screen also act as an effective pre-dewatering step, removing a significant amount of water from the material surface.
Scrubbing Mechanism
Mechanical scrubbing separates surface contamination from plastic through friction and water carry-out. Operating parameters are selected based on feedstock and target specification.
1. Infeed
Contaminated plastic flakes or film pieces are fed into the bottom of the inclined cylindrical chamber.
2. High-Speed Scrubbing
A central rotor with many angled paddles spins at 500-600 RPM, creating intense friction as the material scrubs against itself and the screen.
3. Discharge
Contaminants and water are expelled through the screen, while the clean plastic is propelled upwards and discharged from the top outlet.
Reliability and Maintenance
Dynamically Balanced Rotor
Ensures smooth, stable, and vibration-free performance even at high speeds, extending the life of all components.
Isolated Bearing Housing
A critical design feature that effectively prevents water and fine particles from entering the bearings, ensuring maximum durability.
Replaceable Paddles & Screen
The wear-resistant rotor paddles and the dewatering screen are designed to be easily replaceable, simplifying maintenance and minimizing downtime.
Water-Saving Design
An optimized water injection manifold and internal design ensure thorough cleaning while minimizing fresh water consumption, reducing your operational costs.
Operating Specifications
| Model | Motor Power (kW) | Rotor Diameter (mm) | Rotor Speed (RPM) |
|---|---|---|---|
| LX-400 | 11 | 400 | 520 |
| LX-450 | 15 | 450 | 520 |
| LX-550 | 22 | 500 | 520 |
Actual throughput and cleaning results depend on feedstock type, particle size, inlet contamination load, water quality, and line configuration. Final output specifications should be confirmed by process validation on your material.
Warranty Coverage
1-Year Limited Warranty
Warranty coverage applies to mechanical components against manufacturing defects under normal operating conditions. The final scope and terms are confirmed in the purchase contract and in the equipment documentation delivered with the machine.
Commissioning Support
We support installation and startup with layout guidance, recommended operating parameters, and commissioning checklists. Support is focused on stabilizing throughput, wash water usage, and rotor performance in your existing line configuration.
Common Engineering Questions
What is the main purpose of a friction washer in a washing line?
The primary purpose is intensive cleaning. While a sink-float tank separates materials by density, a friction washer uses high-speed mechanical scrubbing to remove surface contaminants like dirt, sand, paper, and residual adhesives that may remain after initial washing stages.
Can this machine be used for both rigid flakes and soft films?
It can be configured for both rigid plastic flakes (like PET, HDPE) and flexible plastics (like LDPE/LLDPE films). Actual cleaning efficiency depends on contamination type, particle size, water injection, and screen specification.
Is it possible to have a "hot wash" with this machine?
Yes. While the standard process uses cold water, our friction washers can be integrated into a hot washing system. Hot water (often 60-80°C, process-dependent) can improve removal of oils, greases, and some adhesives; temperature and chemistry are selected based on the incoming material and the target specification, and final purity should be confirmed by process validation.
Request a Quote
All our machines are built with SUS304 stainless steel contact parts and are available with CE certification. Contact our specialists to confirm sizing, integration requirements, and expected performance on your feedstock.
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