Single Screw Barrel for Extruder
High-Precision, High-Durability Screw Barrels for Industrial Plastic Extrusion
The Single Screw Barrel for Extruder by Plastivo Extrusions is a precision-engineered component designed to deliver superior melt quality, stable material flow, and long-term reliability in industrial extrusion applications. Manufactured using high-grade mild steel with a hardened surface of 68 HRC, this screw barrel is built to withstand extreme wear, heat, and production load—making it an essential upgrade for plastic manufacturers seeking improved efficiency and output.
Designed for extruders used in HDPE pipe extrusion, pelletizing lines, blown film machines, sheet lines, profile extrusion, cable extrusion, and recycling machines, the screw barrel offers exceptional performance across various thermoplastic materials.


Technical Specifications
Durable Construction for Industrial Reliability
✔ High-Grade Mild Steel Body
Offers superior rigidity and heat distribution, ensuring stable extrusion even during long
production cycles.
✔ Nitrided / Hardened Surface Layer
At 68 HRC, the barrel and screw surface resist:
● Corrosion
● Wear
● Friction
● Thermal stress
This extends the life of both screw and barrel significantly.
Customizable for Any Extrusion Line
We manufacture screw barrels in sizes from 20 mm to 150 mm, ideal for:
● Plastic extrusion machines
● Recycling extruders
● HDPE/LDPE/LLDPE pipe plants
● Blown film extruders
● Sheet & profile extruders
● Granule pelletizing machines
● Cable & wire coating lines
Customization Options Include:
● Screw diameter
● Barrel length (L/D ratio)
● Screw compression ratio
● Venting / non-venting designs
● Mixing sections
● Grooved / smooth feed zones
● Special coatings (optional)
Each screw barrel is built to match your exact machine requirement.
Engineered for High-Performance Extrusion
✔ Precision Melt Flow
The screw geometry is designed to ensure:
● Uniform plasticizing
● Stable melt pressure
● Perfect mixing & homogenization
● Smooth material flow
This results in improved product finish and increased line efficiency.
✔ High Wear Resistance (68 HRC)
The hardened surface provides:
● Long operational life
● Resistance against abrasion
● Excellent performance in high-temperature and high-pressure conditions
Ideal for abrasive materials, recycled plastics, and demanding applications.
Why Choose Plastivo’s Single Screw Barrel for Extruders?
Designed using advanced mechanical and metallurgical engineering to provide:
● High output
● Better homogenization
● Reduced die pressure fluctuations
With 68 HRC hardness and robust construction, the screw barrel withstands:
● Continuous 24/7 operations
● High torque loading
● Abrasive recycled material
Compatible with:
● HDPE
● LDPE
● LLDPE
● PP
● ABS
● PVC
● HIPS
● PET (specific models)
Produced on CNC and deep-hole drilling machines ensuring:
● Perfect straightness
● Consistent diameter tolerance
● Smooth internal finish
Minimum order quantity of 10 pieces, ideal for OEMs, machine manufacturers, and large
factories.
Applications
The screw barrel is widely used in:
✔ Plastic Recycling Machines
Enhances melt quality and output stability.
✔ HDPE & LDPE Pipe Extrusion
Provides uniform flow for pipe thickness accuracy.
✔ Blown Film Extrusion
Ensures consistent bubble formation and film clarity.
✔ Granule/Dana Making Machines
Ideal for strand and die-face pelletizers.
✔ Profile & Sheet Extrusion
Improves mixing and surface finish.
✔ Cable Insulation & Wire Jacket Extrusion
Ensures smooth, consistent polymer coating.
Benefits for Manufacturers
✔ Better Plasticizing Performance
Improves melt mixing and reduces unmelted particles.
✔ Higher Output
Optimized screw design increases productivity.
✔ Reduced Maintenance Costs
Long-lasting screw and barrel extend replacement cycles.
✔ Consistent Product Quality
Uniform melt flow enhances downstream processing.
✔ Lower Operating Costs
Energy-efficient design reduces motor load and power usage.
✔ Trusted Quality from an Indian Manufacturer
Made in India with global standards and precision.
Quality Assurance & Manufacturing Excellence
Plastivo Extrusions follows a strict quality assurance process:
● CNC machining
● Deep hole drilling
● Nitriding and hardening
● Surface polishing
● Precise tolerance inspection
● Balance and alignment checks
Only high-precision screw barrels pass our final inspection.
Frequently Asked Questions (FAQ)
The screw and barrel surface is hardened to 68 HRC for long life.
From 20 mm to 150 mm, fully customizable.
HDPE, LDPE, PP, PVC, PET, ABS, HIPS, and various thermoplastics.
Yes, the screw barrel is designed for recycled plastics and heavy-duty operations.
Generally 2–4 weeks, depending on quantity and customization.
Yes—L/D ratio, compression, venting, and mixing sections can all be tailored.
Securely packed in boxed packaging for safe transport.