Hot Die Face Plastic Pelletizing System

Hot Die Face Plastic Pelletizing System
Hot Die Face Plastic Pelletizing System
Hot Die Face Plastic Pelletizing System
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The HS hot die face pelletizing line is often referred to as a low-temperature, environmentally friendly pelletizing system. It is used for recycling both soft plastic films and rigid PE-based plastics, and is commonly applied to reprocessing edge trim and production scrap from downstream plastic product factories. Melting and pelletizing is integrated into a single streamlined process. After cutting, the pellets are cooled directly by air and are already dry when discharged. With the effective air-cooled pelletizing system, operators would not need a separate drying stage. It reduces energy consumption, and helps lower overall operating costs.

Recyclable Materials

PE drip irrigation tape

HDPE film

HDPE rigid waste plastic

LDPE film

Specifications

PT Series Plastic Pelletizing System

Model Screw Diameter (mm) Screw Length (mm) Power (kW) Output Capacity (kg/h)
HS-90 90 900 22 (4-pole) 50
HS-120 120 1200 30 (4-pole) 100
HS-150 150 1350 55 (4-pole) 180
HS-160 160 1800 55 (6-pole) 250
HS-180 180 2000 75 (6-pole) 300

PX Series Plastic Pelletizing System
The PX series plastic pelletizing line (vented) releases gas during melting through a built-in vent, so the pellets come out more compact. The screw uses a longer L/D ratio, which improves melting and plasticization.

Model Screw Diameter (mm) Screw Length (mm) Power (kW) Output Capacity (kg/h)
HS-110 110 2200 30 (6-pole) 100
HS-130 130 2500 37 (6-pole) 150
HS-150 150 2500 55 (6-pole) 200
HS-160 160 2500 75 (6-pole) 250
HS-180 180 3000 90 (6-pole) 300
Advantages
  • Simple and efficient process
    Pelletizing is completed with a single extruder. The pellets are dry when discharged. Its routine maintenance is simplified.
  • Energy-saving and environmentally friendly
    It uses air as cooling medium, thus reducing cooling water costs and requiring less infrastructure.
  • Good pellet appearance
    The melt is cut immediately at the die face by a rotating knife. Pellets have a smooth surface and a near-spherical shape, giving them a clean and consistent appearance.
  • Stable pellet quality
    Low-temperature extrusion helps preserve the original properties of the material. Molecular breakdown stays low, MFR changes are minimal, and the material retains much of its original mechanical strength.

Twin-screw systems are commonly used to process regrind and flakes made from PP, PE, ABS, PS, PA, and PC. Common sources include automotive bumpers and appliance housings. Its composition is often mixed and requires stable mixing during processing.

A single-stage twin-screw plastic pelletizing line is usually chosen when material behavior is not complex and is more predictable. Its compact layout and smaller footprint make it suitable for general plastics or applications with basic modification requirements.
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