Application

Plastics & Engineering Plastics

Rongpai underwater pelletizing systems are widely used in the plastics and engineering plastics industry, processing common commodity plastics such as PE, PP, and PS, as well as high-performance engineering plastics like PET, PA, and POM.

This field mainly covers the pelletizing of common plastics and high-performance engineering plastics, widely applied in consumer goods, industrial manufacturing, and high-end applications.

General Plastics

PE (Polyethylene) : Films, pipes, packaging bags, cable sheaths

PP (Polypropylene) : Food packaging, appliance housings, furniture, automotive interiors

PS (Polystyrene) : Disposable tableware, packaging boxes, foam plastics

PVC (Polyvinyl Chloride) : Pipes, cable sheaths, door and window frames

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Engineering Plastics

PA (Nylon, Polyamide) : Gears, bearings, automotive parts, textile fibers

PC (Polycarbonate) : Safety shields, CDs, car lamp covers, optical lenses

POM (Polyoxymethylene) : Precision parts, gears, pulleys

PET (Polyethylene Terephthalate) : Beverage bottles, food packaging, films, fibers

PBT (Polybutylene Terephthalate) : Automotive electrical parts, connectors, tool housings

PPS (Polyphenylene Sulfide) : Automotive engine parts, electrical insulation, chemical equipment components

TPU (Thermoplastic Polyurethane Elastomer) : Phone cases, sports equipment, shoe soles, cables, automotive interiors

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Plastic Additives

Color Masterbatch : Coloring for various plastic products

Functional Masterbatch : Prevents plastic aging, enhances degradability

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Recommendation

Underwater Pelletizer

Rongpai underwater pelletizers are specially designed for producing a wide range of polymer-based thermoplastics, primarily producing spherical pellets, with output up to 12,000 kg/h.

Pellet Drying & Water Processing Systems

Depending on production requirements, pellet dryers can be installed next to the water tank or independently around the silo, both being practical solutions in actual production.

Melt Diverter Valve

The melt diverter valve serves as the interface between the underwater pelletizing system and upstream equipment, enabling connection or disconnection of the pelletizing process from upstream processes.

Premature or delayed entry of process water into the cutting chamber can lead to unsuccessful startup or even significant production losses in underwater pelletizing operations.

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lironghuai@rongpaiuwp.com