Single-Screw Plastic Pelletizing Machines Explained

Industrial extrusion machine in factory setting

Our advanced single-screw plastic pelletizing machines with Heat Wave Stabilization™ produce premium plastic pellets by providing uniform heat distribution throughout the entire barrel length. This energy-saving pelletizer, available in both single or double stage arrangement, comes standard with hydraulic-powered screen change to ensure there is no downtime throughout each operating session.

Working Principle

Additional technical improvements to our single-screw plastic pelletizing machines include our high-precision gear box that consistently, yet silently drives the screw shaft transporting the liquefied plastic in a forward movement. Our improved barrel and screw shaft use the highest quality, custom formulated steel that is reinforced using gas nitriding technology to ensure against rust and wear. Along the entire length of the barrel are ultra-quiet ventilation fans with an integrated temperature control meter and PID thermal regulation.

Based on your choice of “melt pelletizing” or “strand pelletizing,” a water-ring cutting system or pellets granulator with a water tank can be added. To enhance mechanization, a vertical drying machine with blower to a storage silo can also be implemented.

While single-screw pelletizer machines are ideally suited for plastic recycling operations, we also offer twin-screw plastic pelletizing machines tailored for compounding.

Hands holding granulated salt

Technical Specifications

ModelScrew DiameterL/DDriving MotorOutput
SJ-100⌀100mm20/3245-55 KW100-200 KG/H
SJ-120⌀120mm20/3255-75 KW100-200 KG/H
SJ-150⌀150mm20/3275-90 KW200-300 KG/H
SJ-180⌀180mm20/3290-132 KW200-400 KG/H
SJ-200⌀200mm20/32160-280 KW600-800 KG/H

CE certification available.
Larger, more powerful models available based on your request.

Additional Images

Industrial machinery in a manufacturing warehouse
Industrial machinery in a factory setting

Inquiries

To get the latest prices and lead times, send us a message using the form below.

Contact Form

Author: Plastic Recycling Machine - Rumtoo

Rumtoo Plastic Recycling Machinery is a premier manufacturer specializing in high-performance solutions for PET bottle and PP/PE film recycling. With over 20 years of expertise, we offer an integrated range of equipment, including advanced Washing Systems, Pelletizing Lines, Plastic Shredders, and Crushers. Our technology is specifically engineered to transform challenging waste—such as soiled LDPE films and PP non-woven bags—into high-purity plastic granules. Today, Rumtoo supports hundreds of recycling facilities worldwide, processing thousands of tonnes of plastic monthly and driving global circular economy goals.