Used Gloucester 3.5" Single Screw Extruder – Model 35250R2, 32:1 L/D, 100 HP Motor

Manufacturer Information:

• Manufacturer: Gloucester
• Model: 35250R2
• Condition: Used (Reconditioned in 2011, Never Put Back into Service)
• Serial Number: 36736/11
• Year Manufactured: 1995
• Year Reconditioned: 2011

Description:

The Gloucester 35250R2 3.5” Single Screw Extruder is a high-performance, industrial-grade extrusion system, designed for efficient polymer processing in sheet extrusion, compounding, and recycling applications. This system features a 3.5" diameter screw with a 32:1 L/D ratio, providing consistent material processing and superior melt quality.

The electrically heated, air-cooled, non-vented barrel operates at an approximate 65” centerline height and is Contra-Cool ready (blower not included). The 18.17:1 reduction ratio gearbox is directly driven in a wraparound configuration by a 100 HP Baldor DC motor, offering smooth and reliable extrusion performance. The Saftronics SCR control system ensures precise speed and torque control for optimized extrusion efficiency.

For temperature regulation, the system includes an oil pump with a heat exchanger for gearbox cooling. The new control panel features fourteen (14) temperature control zones, offering advanced thermal stability and process control. Additionally, all wiring on the extruder is run to a terminal strip for easy installation and connectivity.

This extruder includes two (2) new/rebuilt screws, adding extra value and process flexibility. The drive control is supplied loose, allowing for customized system integration.

Originally built in 1995 and completely reconditioned in 2011, this extruder was never put back into service, making it an excellent choice for those seeking a near-new extrusion system at a used price.

Specifications:

• Screw Diameter: 3.5 inches
• L/D Ratio: 32:1
• Barrel Features:
  • Electrically heated, air-cooled
  • Non-vented
  • Set up for Contra-Cool (Blower Not Included)
  • Approximate 65” centerline height
• Gearbox:
  • Reduction Ratio: 18.17:1
  • Direct-driven, wraparound configuration
• Drive System:
  • 100 HP Baldor DC Motor
  • Saftronics SCR Control System
• Cooling System:
  • Oil pump with heat exchanger for gearbox cooling
• Control System:
  • New Control Panel with 14 Temperature Control Zones
  • All wiring run to a terminal strip
  • Drive control supplied loose
• Additional Features:
  • Includes two (2) new/rebuilt screws
• Power Requirements: 460V / 3-Phase / 60Hz

Applications:

• Plastics & Polymer Processing: Sheet extrusion, compounding, and pelletizing
• Industrial Manufacturing: Extrusion of pipes, tubing, films, and profiles
• Recycling & Reprocessing: Repurposing scrap plastic into reusable pellets
• Chemical & Specialty Material Processing: Processing engineered polymers and composites

Common Product Uses:

• Industrial extrusion for high-efficiency plastic processing
• Temperature-controlled extrusion with air-cooled barrel
• Direct-driven gearbox with Saftronics SCR drive control
• Reconditioned extruder with new screws and control panel

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