Planetary Roller Extruder

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Featuring a central spindle surrounded by multiple smaller planetary screws, this unique design delivers thin-layer rolling, kneading, and vacuum degassing. The planetary roller extruder processes materials gently at lower temperatures and offers optimal sheet quality.

Specifications for PET
Screw Diameter Output
Ø120 mm 800 kg/h
Ø160 mm 1000–1200 kg/h
Ø180 mm 1200–1500 kg/h

Planetary roller extruders provide better plasticising and degassing than standard single-screw models, while their screw structure is generally more durable than a co-rotating twin-screw design. Backed by more than 30 years of experience in plastic extrusion, our team can recommend a suitable configuration for difficult PET materials or products that require higher transparency and toughness.

Since 1994, Hengrui has been dedicated to the design and manufacturing of customized plastic extrusion machines. We provide complete extrusion lines for producing plastic sheets, boards and films, processing materials including PP, PE, PS, PC, PMMA, PET, EVOH and ABS.
Our plastic extrusion systems cover applications from thin plastic sheets with a thickness of 0.02 mm to heavy-gauge boards up to 40 mm thick, with production widths exceeding 3 meters. With our portfolio of extruders, downstream equipment and extrusion lines, we provide customized plastic extrusion solutions for manufacturers and processors in food packaging, electronics, automotive, construction, furniture and other industrial applications.
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