The Welex Model HS 3.0 40D SV is a high-performance, single-screw plastic extrusion machine designed for continuous processing of thermoplastic materials. Known for their rugged construction and precision control, Welex extruders are widely used in applications such as sheet extrusion, profile extrusion, and compounding.
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✅ What It Does
- Melts and homogenizes plastic resins (pellets, granules, or powders)
- Pressurizes and conveys molten polymer through a die
- Forms continuous plastic products like sheets, films, or profiles
- It’s ideal for operations that require high-output, precision melt control, and consistent quality over long runs.
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⚙️ Key Specifications & Features
- Model: HS 3.0 40D SV
- Screw Diameter: 3″
- L/D Ratio: 40:1 (Long barrel for better mixing and output)
- Drive Type AC or DC motor drive (varies by version, typically 50–100 HP)
- Barrel Heating Zones: Typically 5–7 zones with PID control
- Cooling System: Air or water-cooled barrel zones
- Output Capacity:~300–600 lbs/hr (varies by resin and configuration)
- Material Types PP, PS, ABS, PET, PVC, PE, and other thermoplastics
- Feed Type Gravity feed (hopper-fed), with optional vacuum loader
- Control System: Standalone operator panel with temperature & motor controls
- Die Compatibility: Designed to connect to sheet dies, profile dies, etc.
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💡 Capabilities
- High L/D Ratio (40:1):
- Superior mixing
- Higher output
- Better melt homogeneity
- Efficient devolatilization (if vented)
- 3″ Diameter Screw:
- Sheet extrusion (e.g., thermoforming sheet)
- Lab or pilot-scale compounding
- Robust Gearbox & Bearings:
- Flexible Temperature Control:
- Multi-zone barrel heating ensures precise melt temperature regulation for a wide range of materials.
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🔧 Applications
- Plastic sheet extrusion (for thermoforming, packaging)
- Profile extrusion (window frames, tubes, trims)
- Masterbatch or compound production
- Custom extrusion lines (when paired with downstream equipment like screen changers, dies, chill rolls)
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📌 Summary Description
The Welex HS 3.0 40D SV is a 3″ single-screw plastic extruder engineered for high-output, high-precision extrusion applications. With a long 40:1 L/D screw, robust drive system, and multi-zone barrel heating, it's capable of processing a wide range of thermoplastic resins into continuous forms such as sheets, profiles, and compounds. Built for reliability and consistency, this extruder is ideal for demanding industrial operations.