Underwater Pelletizer
Product Overview
The Underwater Pelletizer is purpose-built for processing materials such as PP, PU, PA, and other high melt index (MI) or engineering-grade thermoplastics and elastomers. It excels in applications involving heat-sensitive, high-viscosity, or easily degradable compounds. The process consists of four key stages: melt extrusion, die-face cutting, underwater cooling, and centrifugal drying. This configuration ensures precise pellet sizing, consistent shape, and excellent cooling efficiency—making it ideal for high-volume micro pellet production. Common applications include footwear materials, medical-grade elastomers, engineering plastics, and composite granules.
Key Features
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Handles PP, PU, PA, TPU, TPE, and other advanced thermoplastics with high processing requirements.
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Features automatic pressure regulation, blade angle adjustment, and wear compensation to maintain consistent cutting quality.
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Supports blade speed and count adjustments to match different material viscosities and achieve uniform pellet size.
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Fully recirculated cooling water system compatible with chillers or heat exchangers; minimizes water usage and environmental impact.
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Removes water efficiently, delivering dry pellets directly without requiring additional drying—ideal for continuous, high-throughput production.
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Supports connection to automated feeding modules for improved efficiency and production continuity.
Applications
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High-output, fine-pellet manufacturing for technical and specialty applications.
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Suitable for TPU, TPE, PA, PU, and other demanding elastomeric compounds.
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Used in the production of soft-touch, medical-grade, or impact-resistant polymer materials.
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Supports consistent pelletization where size uniformity and precision are critical.
Technical Specifications
| Item | Specification |
|---|---|
| Applicable Materials | PP, PU, PA, high MI plastics, heat-sensitive and high-viscosity compounds |
| Pelletizing Method | Underwater die-face cutting with automatic pressure, angle, and wear compensation |
| Cooling System | Closed-loop water cooling system; compatible with chillers or heat exchangers; recirculated water use |
| Dewatering Method | Integrated centrifugal dryer; no secondary drying required |
| Pellet Size Control | High consistency; supports micro pellet production |
| Cutter Head | Rotary cutter with adjustable speed and configurable blade count |
| Line Integration | Compatible with automated feeding modules; excludes quick-change die head, screening, and packaging units |
Application :
