Parallel Twin Screw Barrel for Extruders
High-Performance Parallel Twin Screw Systems for PVC, WPC, PE & Engineering Plastics
The Parallel Twin Screw Barrel by Plastivo Extrusions is a high-precision, industrial-grade component engineered to deliver exceptional mixing, melting efficiency, and output stability in high-performance extrusion applications. Designed for PVC, WPC, PE, PP, and engineering-grade polymers, this twin screw barrel is ideal for products requiring excellent material homogenization and high throughput.
Manufactured using premium mild steel with a hardened surface of HRC 60–65, this screw barrel system ensures outstanding durability, resistance to wear, and smooth operation under continuous load. Parallel twin screws are widely used in industries that demand high plasticizing efficiency, low melt temperature, and superior product consistency.
Perfect for pipe extrusion, profile extrusion, compounding, granulation, and WPC manufacturing, Plastivo’s Parallel Twin


Technical Specifications
Key Features of the Parallel Twin Screw Barrel
✔ Superior Mixing & Homogenization
Perfect for:
● PVC dry blend
● WPC mixtures
● Additive masterbatch
● Recycled material blends
Ensures consistent melt quality and perfect material distribution.
✔ High Durability & Wear Resistance
Made from high-grade mild steel and hardened to HRC 60–65, it provides:
● Long service life
● Resistance to abrasion
● Resistance to corrosive PVC formulations
● Stable performance under high torque
✔ Customizable For Any Machine
Available in multiple variants:
● Diameter range: 20–150 mm
● L/D ratios customizable
● Venting & non-venting types
● Special bimetallic options
● Screw pitch and compression ratio tailored to duty cycles
Compatible with most Indian and imported extrusion machine brands.
✔ High Throughput Efficiency
Parallel twin screws are engineered to maximize:
● Output capacity
● Melt consistency
● Temperature control
● Product quality
Engineered for High-Output Extrusion Performance
✔ Parallel Twin Screw Geometry
Parallel twin screws are designed with identical diameters along the entire screw length.
This delivers:
● Stable melt pressure
● High torque capacity
● Excellent mixing efficiency
● Low shear rate for heat-sensitive materials
● High output with balanced pressure distribution
Ideal for large-scale PVC and WPC extrusion lines.
✔ Designed for Precision & Consistency
The synchronized rotation of parallel twin screws ensures:
● Uniform material melting
● Enhanced mixing & plasticizing
● Better heat distribution
● Reduced material degradation
Applications Across Multiple Industries
✔ PVC Pipe Extrusion
High-output extrusion of:
● PVC pipes
● CPVC pipes
● UPVC pipes
✔ PVC/WPC Profile Extrusion
Ideal for:
● Window profiles
● Door frames
● Cable trunking
● Foam profiles
✔ Granulation & Compounding
For producing:
● PVC granules
● WPC granules
● Engineering polymer compounds
✔ Sheet & Panel Extrusion
Used in:
● PVC sheets
● WPC boards
● Decorative panels
Why Choose Plastivo Extrusions Parallel Twin Screw Barrel?
Crafted using:
● CNC machining
● Deep-hole boring
● Precision grinding
● Hard chrome or nitriding
● Heat treatment
● Strict dimensional tolerance checks
Parallel twin screws offer:
● Higher torque capability
● Better feeding efficiency
● Stable extrusion output
● Uniform melt temperature
The hardened surface (HRC 60–65) provides:
● Wear resistance
● Corrosion protection
● Long-term reliability in continuous production
Suitable for processing:
● PVC
● WPC (wood-plastic composite)
● PE
● PP
● ABS
● Recycled plastics
Our team helps you design:
● Screw geometry
● Compression zones
● Venting systems
● Pitch profile
● Bimetallic coatings
Tailored for your exact machine and material.
Manufacturing & Quality Control
Each screw barrel undergoes:
● CNC machining
● Root and flight polishing
● Nitriding/hardening
● HRC testing
● Ultrasonic straightness testing
● Dimensional inspection
● Concentricity checks
Designed to meet Indian and international quality standards.
Benefits at a Glance
✔ Superior mixing for PVC & WPC
✔ Stable melt pressure
✔ High durability (HRC 60–65)
✔ Long operational life
✔ High torque capacity
✔ Designed for high-output extrusion lines
✔ Customizable geometry
✔ MOQ of just 10 pieces
Frequently Asked Questions (FAQ)
PVC, WPC, PE, PP, ABS, engineering plastics, and recycled blends.
Customized diameters from 20 to 150 mm.
Surface hardness of HRC 60–65 for long wear life.
Yes — full customization of geometry, L/D, venting, pitch, and material.
Typically 3–5 weeks depending on order size.
Yes — parallel twin screws are highly efficient for PVC pipes, profiles, and WPC materials.