Barrier Screw Barrel for Blow Moulding, Injection Molding & Extrusion
High-Efficiency, High-Durability Barrier Screw Barrels for Advanced Polymer Processing
The Barrier Screw Barrel by Plastivo Extrusions is a high-performance, precision-engineered component designed to dramatically enhance melt quality, mixing efficiency, and output consistency in blow molding, injection molding, extrusion, and recycling applications. Manufactured using premium-grade mild steel with a hardened surface of 68 HRC, these screw barrels deliver exceptional wear resistance, long service life, and superior processing performance. With advanced barrier screw geometry, these components ensure efficient separation of solid and molten material, improving melt homogeneity and overall production quality across a wide range of thermoplastics.
Perfect for film extrusion, sheet lines, HDPE bottle manufacturing, automotive injection parts, and recycled material processing, Plastivo’s Barrier Screw Barrels offer a significant upgrade to standard extrusion and molding systems.
Technical Specifications
What Is a Barrier Screw Barrel?
A barrier screw is an advanced screw design with a special geometry that separates unmelted
resin from melted polymer.
This results in:
● Faster melting
● Better mixing
● Stable melt flow
● Increased throughput
Plastivo Extrusions manufactures barrier screws with precision profiles that improve output quality while reducing energy consumption.
Key Features of Plastivo’s Barrier Screw Barrel
✔ Advanced Barrier Screw Geometry
The barrier flight separates molten and solid materials, enabling:
● Higher melting efficiency
● Improved mixing
● Reduced unmelted particles
● Better homogenization
Ideal for high-output and high-quality production lines.
✔ Durable, High-Grade Construction
Manufactured using:
● Premium mild steel body
● Deep hardened surface (68 HRC)
● Nitrided wear-resistant coating
Ensures exceptional performance even with abrasive materials and recycled polymers.
✔ High Efficiency & Throughput
Barrier design increases production capacity while reducing:
● Energy consumption
● Melt temperature variations
● Cycle time
This results in smoother operation and higher profits.
✔ Customizable Configurations
Available in different:
● L/D ratios
● Compression ratios
● Barrier geometries
● Mixing sections
● Diameters from 20 mm to 200 mm
Tailored to match your exact machine and material requirements.
✔ Long Operational Life
Special hardening and surface treatments help the screw barrel resist:
● Abrasion
● Corrosion
● High-pressure wear
● Thermal fatigue
Perfect for tough materials like HDPE, PP, PVC, and recycled polymers.
Smart Automation for Easy Operation
The machine comes equipped with a PLC-based control panel, offering:
● Real-time monitoring
● Automatic feeding control
● Temperature regulation
● Fault alerts
● Speed & cut-length control
The interface is easy to use—even for new operators—boosting efficiency and reducing training time.
Applications Across Multiple Industries
✔ Blow Molding
Ideal for manufacturing:
● HDPE bottles
● Containers
● Jerry cans
● Cans & drums
Ensures uniform melt, stable parison formation, and consistent wall thickness.
✔ Plastic Extrusion
Suitable for:
● Film extrusion
● Sheet lines
● Pipe & profile extrusion
● Granule/pellet production
Provides stable melt flow and improved mixing for superior product finish.
✔ Injection Molding
Used in:
● Automotive parts
● Industrial components
● Consumer goods
● Packaging items
Improves melt quality for defect-free molded parts.
✔ Plastic Recycling
Enhances the processing of recycled materials by:
● Improving melt consistency
● Increasing throughput
● Reducing contamination effects
Why Choose Plastivo Extrusions Barrier Screw Barrel?
Manufacturing Excellence & Quality Control
Every Plastivo Extrusions barrier screw barrel undergoes:
● CNC machining
● Precision grinding
● Nitriding & hardening
● HRC surface testing
● Concentricity verification
● Dimensional tolerance check
● Alignment inspection
Benefits at a Glance
✔ Enhanced melting performance
✔ Superior mixing & homogenization
✔ High wear resistance (68 HRC)
✔ Stable, consistent extrusion output
✔ Long-lasting screw & barrel life
✔ Reduced energy consumption
✔ Ideal for recycled and virgin materials
✔ Customized for any machine
