Injection Molding Screw Barrel
High-Precision, High-Durability Screw Barrels for Injection Molding
Machines
The Injection Molding Screw Barrel by Plastivo Extrusions is a precision-engineered, industrial-grade component designed to deliver consistent melt flow, superior plasticizing performance, and long-lasting durability in injection molding applications. Manufactured using high-quality mild steel with a hardened surface of 68 HRC, this screw barrel is built to operate under extreme temperature, pressure, and rotational loads—making it a trusted choice for modern injection molding industries.
Perfect for processing a wide range of thermoplastics, including HDPE, LDPE, PP, PVC, ABS, PC, Nylon, and engineering-grade polymers, this screw barrel improves melt quality, reduces cycle times, and enhances final product consistency.
Technical Specifications
Customizable to Any Injection Molding Machine
We offer screw barrels in diameters ranging from 20 mm to 150 mm, ideal for:
● Horizontal injection molding machines
● Vertical injection molding machines
● Multi-cavity molds
● High-pressure molding systems
Customization Options Include:
● L/D ratio
● Compression ratio
● Barrier screw design
● Venting or non-venting design
● Mixing sections (Madock / Spiral / Pin type)
● Bimetallic coating (optional)
Every screw barrel is manufactured to match your specific machine and application.
Engineered for Precision Injection Molding
✔ Superior Plasticizing & Melt Homogenization
The screw design ensures:
● Uniform melting
● Stable pressure
● Smooth material flow
● Improved mixing and homogenization
This results in higher-quality molded parts with minimal defects such as flow lines, warping, or poor surface finish.
Built for Extreme Durability
✔ High Surface Hardness (68 HRC)
The barrel and screw undergo advanced heat treatment to withstand:
● High wear
● Abrasion
● Chemical corrosion
● Continuous 24/7 operation
✔ Mild Steel Core + Hardened Surface
Combines:
● Rigidity and strength for structural stability
● Precision-machined internal surfaces for smooth flow
● Hardened coating for long operational life
The result: a screw barrel that performs reliably even under demanding injection molding conditions.
Why Choose Plastivo’s Injection Molding Screw Barrel?
Applications Across Industries
The Injection Molding Screw Barrel is widely used in:
✔ Plastic Product Manufacturing
Household items, containers, crates, buckets, chairs, caps, and closures.
✔ Automotive Component Molding
Dashboards, trims, housings, handles, and clips.
✔ Engineering Plastic Applications
Electrical parts, gears, enclosures, and precision components.
✔ Packaging Industry
Caps, closures, PET preforms, food-grade packaging items.
✔ Medical & Pharmaceutical Uses
Injection-molded medical components (special stainless/bimetallic options available).
Manufacturing Excellence & Quality Assurance
Each screw barrel undergoes:
● CNC machining
● Deep-hole boring
● Nitriding/hardening
● Precision grinding
● Surface polishing
● Ultrasonic straightness testing
● Hardness verification
Every piece is inspected to ensure zero deviation and perfect alignment.
Frequently Asked Questions (FAQ)
Benefits at a Glance
✔ Consistent melt flow
✔ Improved injection molding quality
✔ High wear resistance (68 HRC)
✔ Reduced cycle time
✔ Longer screw and barrel life
✔ Lower maintenance costs
✔ Custom-built for your machine
