Centrifugal Dryer & Dewatering Machine for Plastic Drying

Centrifugal Dryer and Dewatering Machine for Plastic Drying in a factory setting, featuring a bright blue body with a yellow motor and safety railings.

A highly effective, yet low-energy consuming piece of drying equipment, the dewatering machine utilizes centrifugal force to partially remove water from a flowing stream of plastic material. It has the distinct ability to take in material with elevated water content and reduce it to minimal levels. When integrated into our PE film washing line or PET bottle washing line, the dewatering machine is the initial unit in a series of machines.

Working Principle

The dewatering machine, or horizontal centrifuge, is remarkably similar to a friction washer; that is, at the center of both machines is a long shaft mounted with numerous panels or paddles. Surrounding this rapidly spinning shaft is a mesh screen tunnel. The entire apparatus is encased in a metal container where an electric motor is externally mounted.

As material is fed into the vertical feeder, the shaft spins at nearly 1,000 rotations per minute. The material within is constantly thrown outwards against the mesh screen tunnel. Water that passes through the mesh tunnel is collected for recycling while the plastic moves onto the next drying equipment, typically a thermal dryer. Broadly speaking, a dewatering machine can reduce moisture content to approximately 20-30%.

The centrifugal dryer uses centrifugal or “spinning” force to remove a portion of the water from plastic flakes. It’s a cost-efficient way to dry PET flakes, PP/PE flakes, and other plastic regrinds before they’re thermally dried. Rumtoo’s innovative centrifugal dryer also functions as a friction washer (cold water) that is used to cool and further clean plastic flakes in a scrubbing manner.

Technical Specifications

ModelMotor PowerMain Shaft DiameterRotating SpeedCapacity
HXJ40037KW400mm1400 RPM400 – 800 KG/H
HXJ55045KW550mm1200 RPM600 – 1000 KG/H
HXJ75055KW750mm1080 RPM1200 – 2000 KG/H

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Author: Rumtoo Plastic Recycling Machine

Rumtoo Plastic Recycling Machinery, Rumtoo Recycling for short, the leading manufacturer of high quality PET Bottle、PP / PE Film Recycling Machinery. Our PE film washing lines offer reliability, efficiency and maximum durability in recycling dirty and soiled PET bottle、PE film back into plastic granulate. With more than two decades of service to the plastics recycling industry, Rumtoo is proud to be responsible for recycling thousands of tonnes of plastic films such as plastic bags, PP non-woven supersacks and LDPE film every month at hundreds of recycling facilities worldwide.

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