Rotajet Systems Limited products

Washers

Rotajet - Friction Plastic Washers

Rotajet Plastic Friction Washers are used to wash highly contaminated plastic films, PET and rigid bottle granulate. Normally the Rotajet friction washers are located after wet granulation and prior to Rotajet float sink tanks. The Rotajet friction washer consists of a high-speed rotor mounted by two bearings, top and bottom, with a full hexagonal screen around the rotor. The rotor and screen are housed in a robustly manufactured frame that is mounted on an incline. The liquid and plastic granulate mix from the wet granulator is fed into the base of the Rotajet friction washer. High-speed rotating paddles force the liquid and granulate mix to the outside screen, forcing the liquid and contaminants to pass through the screen. The plastic granulate is driven up the screen at high speed to the material outlet at the top.

Rotajet - Model RJ-Turbo - High speed washer

The RJ-Turbo is a high-speed, centrifugal washer that utilises a combination of friction, centrifugal force and, when required, thermal and chemical energy to remove contaminants from the surface of the re-grind. As the contaminated plastic enters the wash chamber, it is introduced to the 3000rpm spinning rotor. This rotor is fitted with 32 independent paddles, each coated with chromium carbide to reduce wear time. These paddles can be individually calibrated in order to provide the perfect balance between throughput and washing standard. The energy imparted on the product stream by this plastic washer is significant, forcing the contaminants to break free of the surface of the plastic and is carried by the water, through the screen, and out into the effluent for filtration and reuse. If required additional energy can be provided in the form of heated water and/or chemicals within the wash liquor.