Design
Friction rotor with replaceable paddles, perforated screen and high-pressure spray bars.
High-speed friction between the rotor and the plastic strips oil, glue and soil from flake surfaces — the stage that decides whether the final granulate is clean enough to sell.
Rinsing removes loose dirt. Adhered oil, label adhesive and compacted soil need mechanical friction against the polymer surface, combined with spray rinsing.
Friction rotor with replaceable paddles, perforated screen and high-pressure spray bars.
Placed between crushing and float-sink separation, or between washing stages.
Oil, glue and soil lifted from the surface, then carried away by the spray water.
Values as published for the FW series. Rotation speed is adjustable by frequency converter.
| Model | Power | Rotation speed | Capacity | Drum diameter | Water use |
|---|---|---|---|---|---|
| FW-500 | 15 kW | 500 rpm | 300-500 kg/h | Ø500 | 2-4 m³/h |
| FW-800 | 22 kW | 600 rpm | 500-1,000 kg/h | Ø800 | 4-6 m³/h |
| FW-1000 | 37 kW | 700 rpm | 1,000-1,500 kg/h | Ø1000 | 6-8 m³/h |
| FW-1200 | 55 kW | 800 rpm | 1,500-2,000 kg/h | Ø1200 | 8-12 m³/h |
Published figures for the FW series. The exact speed setting depends on material; capacity and water use vary with contamination level.
Three variables decide whether a friction washer does its job in your line.
Material should be pre-crushed, typically to 10-30 mm; too coarse reduces cleaning, too fine complicates separation.
Match washer capacity to the upstream crusher so it does not become the bottleneck.
Larger lines use two or three washers in series to reach the required cleanliness.
Spray rinse after friction carries the released contamination away.
Friction washing sits between crushing and dewatering in almost every line we build.
PS-series crusher Dewatering machine PET bottle washing line
Small lines use one; larger or heavily contaminated lines use two or three in series. The number is set by the cleanliness target for your output.
Yes — adhesive residue left after de-labeling is one of the main things friction washing removes, together with oil and soil.
2-4 m3/h on FW-500 rising to 8-12 m3/h on FW-1200, depending on model and rinse intensity.
For oily material, heated wash liquor improves results. Whether heat is needed for your feed is confirmed in a material test.