USED WERNER & PFLEIDERER ZSK20

This Used Werner & Pfleiderer Model ZSK20 Twin Screw Extruder is a co-rotating twin screw system featuring a 20mm screw diameter and a 40:1 L/D barrel. It’s designed for high-shear, intensive mixing and compounding applications in industries like plastics, pharmaceuticals, and specialty chemicals.
The extruder is powered by a 5 HP AC motor, equipped with an Allen Bradley 1336 Impact Drive, and operates at a screw speed of 588 RPM. The 3:1 gearbox provides a 37 Nm torque capacity per screw shaft, ensuring consistent performance under demanding processing conditions.
This system includes a Brabender 1/2 HP Model MS-FW40/Optus-70 Feeder, as well as a spare used motor and gearbox, offering additional value and flexibility.

Key Specifications

Manufacturer: Werner & Pfleiderer

Model: ZSK20

Screw Diameter: 20mm

Barrel Length: 40:1 L/D

Centerline Height: 43"

Gearbox Ratio: 3:1

Torque Capacity: 37 Nm per screw shaft

Main Motor:

5 HP AC Motor
Allen Bradley 1336 Impact Drive Unit
588 RPM Screw Speed

Feeder:

Brabender Model MS-FW40/Optus-70
1/2 HP Motor

Included Spares:

Spare Used Motor
Spare Used Gearbox

Features & Benefits

High-Efficiency Twin Screw Extrusion – Co-rotating screws for intensive mixing and consistent material processing

Compact & Precise Design – 20mm screw diameter ideal for laboratory scale, R&D, or pilot plant operations

40:1 L/D Barrel – Provides enhanced mixing and compounding capability for complex formulations

Reliable Drive System – 5 HP AC motor with Allen Bradley 1336 VFD enables precise speed control

Brabender Gravimetric Feeder – Ensures accurate material feeding for consistent throughput

Includes Spares – Extra motor and gearbox increase uptime and reduce maintenance delays

Versatile Applications – Suitable for plastics, pharmaceuticals, food processing, and specialty chemicals

Applications

Plastics Compounding
Polymer Blending & Masterbatch Production
Pharmaceutical Extrusion
Bioplastics Development
Nutraceutical & Food Ingredient Processing
Specialty Chemical Compounding
Laboratory and R&D Trials

Industries Served

Plastics & Polymers
Pharmaceuticals
Food & Nutraceuticals
Chemical Manufacturing
R&D Laboratories