The Strand Pelletizing Line is a high-performance system designed to transform molten plastic polymers into uniform, high-quality pellets suitable for a wide range of industrial applications. This line is widely used in recycling plants, compounding facilities, masterbatch production, and polymer modification processes.

By combining efficient extrusion, precise cooling, and clean pellet cutting, the system ensures excellent pellet shape, stable throughput, and consistent material properties—making it ideal for manufacturers who demand reliability, productivity, and long service life.

System Overview

The line operates by extruding molten polymer through a multi-hole die head, then pulling the strands through a cooling system before cutting them into pellets with an advanced strand pelletizer. This simple yet highly effective process allows for exceptional control over pellet size, density, and surface quality.

Its modular structure makes it compatible with a variety of materials and production capacities, allowing factories to customize the system according to their specific production needs.

Key Components

Extruder Unit

The process begins with a high-efficiency extruder designed for stable melting, homogenization, and pressurization of the polymer.

• Suitable for PP, PE, PET, ABS, PS, PA, PLA, and engineered plastics
• High torque motor and optimized screw design
• Consistent melt flow and temperature stability

Die Head & Strand Formation

The molten polymer is pushed through a precision die head, forming multiple uniform strands.

• Multi-hole die design for increased throughput
• Smooth strand formation without deformation
• Stable temperature distribution for consistent output

Water Cooling Trough

The hot strands enter a water cooling tank to solidify rapidly and evenly.

• Adjustable water level and flow
• Stainless steel tank with anti-corrosion coating
• Optional pre-cooling and dual-stage cooling

Water-Removal & Air-Drying Unit

Before cutting, strands must be completely dried.

• Air knives for moisture removal
• Vibration and air blowing system
• Prevents water contamination in the pelletizer

Strand Pelletizer

A heavy-duty pelletizer cuts the strands into uniform pellets with precise length control.

• High-speed rotary knives
• Adjustable pellet size (2–5 mm)
• Low-noise, low-dust cutting technology

Classifier & Storage System

After cutting, pellets are separated, cooled, and collected.

• Vibrating classifier
• Dust removal system
• Silo or bag-type storage solutions

Advantages of the Strand Pelletizing Line

High Uniformity

Produces consistent, clean-cut pellets with smooth surfaces suitable for high-precision manufacturing.

Flexible With Raw Materials

Supports a wide range of polymers, including recycled plastics, blends, and high-performance engineered materials.

Low Energy Consumption

Optimized extrusion and cutting technology reduce power usage without compromising productivity.

Stable & Continuous Operation

Designed for 24/7 industrial use with minimal downtime and easy maintenance.

Modular Design

Components can be customized based on production capacity, material type, and application requirements.

Easy Operation & Automation

PLC control system with touchscreen interface for monitoring temperature, speed, load, and safety functions.

Typical Industrial Uses

The line is widely used in:

• Recycling industries
• Compounding plants
• Masterbatch production
• Polymer modification factories
• Sheet, film, and pipe manufacturers