Used Welex HS 3.0 40D SV Single Screw Extruder | 3" Screw | 40:1 L/D | 1520 RPM | 550 HP VFD Drive | Vented Barrel. 1520 RPM max. screw speed. Electric heated, air cooled barrel. Vented barrel. 57" barrel center line. 3" x 9" oversized water cooled feed throat. Touch screen operator control. Direct driven by a 412kW (approx. 550 HP) variable frequency motor, 3/60/480V. Serial# 8454. Built 2009.
Used Equipment Facts About This Machine
🏭 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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