Welex HS 3.0 40D SV

Specifications:
Serial #8454
Model HS 3.0 40D SV
Used 3" Welex 40/1 L/D
Extruder diameter- 3″
L/D ratio 40/1
Type: Vented/Plugged,
high speed, single screw
extruder
Year of manufacture:
New 5/2009.
Has electric heated and air cooled barrel
57" barrel center line
Height 3" x 9" oversized water cooled feed throat
Direct driven by a 412
KW ABB AC motor with ABB Variable Frequency
Drive 680 amp 480 volt input.
480 volt/3 phase/60 Hz
(VFD 680 amp)
Motor- A.C.- 412 Kw/550
horse power (direct drive)
Touch screen operator control.
Maximum 1520 Screw Speed
Condition: Excellent


Description:
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.