Used Welex HS 3.0 40D SV Single Screw Extruder | 3" Screw | 40:1 L/D | 1520 RPM | 550 HP VFD Drive | Vented Barrel

🏭 Manufacturer Information

• Manufacturer: Welex

• Model: HS 3.0 40D SV

• Type: Single Screw Extruder

• Serial #: 8454

• Year Built: 2009

⚙️ Product Description

This Used Welex HS 3.0 40D SV Single Screw Extruder is a high-performance processing line ideal for plastics extrusion applications requiring consistent melt quality, high throughput, and robust reliability.

Featuring a 3-inch screw diameter with a 40:1 L/D ratio, this extruder delivers efficient melting, mixing, and pressure development. The barrel is electrically heated and air cooled, with a vented section for devolatilization. A 57" barrel center line and an oversized 3” × 9” water-cooled feed throat improve material intake for higher-rate processing.

Equipped with a 550 HP (412 kW) direct-drive variable frequency motor, this extruder supports high screw speeds—up to 1520 RPM—making it suitable for demanding applications such as sheet extrusion, compounding, profile extrusion, and more.

An integrated touchscreen control system provides full process oversight and precision adjustments.

📏 Specifications

• Screw Diameter: 3"

• L/D Ratio: 40:1

• Max Screw Speed: 1520 RPM

• Barrel:

  • Electric heated

  • Air cooled

  • Vented barrel

• Barrel Center Line Height: 57"

• Feed Throat: 3" × 9", oversized, water cooled

• Motor:

  • 412 kW (approx. 550 HP)

  • Direct-driven

  • Variable frequency drive

  • 3/60/480V

• Controls: Touchscreen operator interface

• Year: 2009

• Serial #: 8454

🧩 Applications

• Sheet extrusion

• Profile extrusion

• Pipe & tubing extrusion

• Compounding lines

• Pelletizing/pulverizing systems

• Film extrusion (with proper downstream equipment)

• Specialty polymers

• Engineering plastics processing

• High-throughput extrusion operations

• Industrial plastics manufacturing

⚗️ What This Might Be Used For

• Melting and conveying thermoplastics

• Devolatilizing materials via vented section

• High-speed, high-output polymer processing

• Producing extruded products or feeding downstream mixers/pelletizers

🧱 Materials It Can Process

• Polyethylene (PE)

• Polypropylene (PP)

• PET, PETG

• PVC (rigid and flexible)

• Polystyrene (PS)

• ABS

• Engineering resins

• Filled or reinforced polymers

• Specialty melt blends

• Recycled plastics (where applicable)

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