 
Bimetallic Screw Manufacturer & Supplier
A Bimetallic Screw is a high-performance component engineered for durability, wear resistance, and long service life, making it ideal for plastic processing industries.
we manufacture precision-engineered Bimetallic Screws that deliver superior melting efficiency, excellent mixing performance, consistent output, and reduced maintenance costs. Our screws are designed using advanced manufacturing technology and premium alloy coatings to ensure reliable performance even while processing highly filled, glass-fiber reinforced, mineral-filled, flame-retardant, and corrosive engineering plastics.
Whether you need a replacement screw or a custom-engineered solution, our experienced team provides high-quality products that maximize productivity, improve product quality, and minimize machine downtime.
What is a Bimetallic Screw?
A Bimetallic Screw is a specially designed plastic processing screw featuring a wear-resistant alloy layer fused onto the screw flight surface. This unique construction combines the strength of alloy steel with the exceptional wear resistance of premium bimetallic alloys.
Unlike standard nitrided screws, bimetallic screws offer significantly better resistance against:
- Abrasive wear
- Corrosive polymers
- High processing temperatures
- High-pressure operations
- Glass fiber reinforcement
- Calcium carbonate-filled materials
- Flame-retardant compounds
Because of these advantages, industries choose bimetallic screws to increase machine efficiency, reduce replacement frequency, and maintain consistent product quality.
Why Choose a Bimetallic Screw?
Modern plastic processing requires equipment capable of operating continuously under demanding conditions. A bimetallic screw offers the durability and performance needed for high-volume production.
Superior Wear Resistance
Premium alloy coatings protect the screw from abrasion caused by glass fibers, fillers, minerals, and engineering plastics.
Excellent Corrosion Protection
The bimetallic layer resists corrosive polymers such as PVC, fluoropolymers, halogenated plastics, and chemically aggressive compounds.
Longer Service Life
Compared to conventional screws, bimetallic screws provide a substantially longer operational life, reducing replacement costs and production interruptions.
Higher Production Efficiency
Optimized screw geometry ensures smooth material flow, faster melting, improved plasticization, and consistent throughput.
Lower Maintenance Costs
Greater durability minimizes maintenance requirements, resulting in lower operating costs and increased machine uptime.
Consistent Product Quality
Uniform melting and mixing improve dimensional accuracy, surface finish, and product consistency across production batches.
Key Features of Our Bimetallic Screws
Our precision-manufactured bimetallic screws are designed for maximum efficiency and long-term reliability.
- Premium wear-resistant alloy coating
- High-strength alloy steel construction
- Precision CNC machining
- Superior hardness and toughness
- Excellent abrasion resistance
- Outstanding corrosion resistance
- High-temperature stability
- Accurate flight geometry
- Optimized compression ratios
- Energy-efficient processing
- Reduced downtime
- Longer operational lifespan
Technical Specifications
| Specification | Details |
|---|---|
| Screw Diameter | 20 mm – 300 mm |
| Length / Diameter Ratio (L/D) | 18:1 to 40:1 |
| Screw Type | Single Screw & Twin Screw |
| Surface Hardness | Up to 62–68 HRC (depending on alloy) |
| Material | High-Strength Alloy Steel |
| Coating | Wear-Resistant Bimetallic Alloy |
| Applications | Extrusion, Injection Molding, Blow Molding, Recycling & Compounding |
Note: Custom specifications are available based on your machine model, processing material, and production requirements.
Applications of Bimetallic Screws
Our bimetallic screws are widely used across various plastic processing industries.
Plastic Extrusion
Delivering stable output and efficient melting for continuous production.
Injection Molding
Ensuring accurate plasticization and repeatable molding performance.
Blow Molding
Providing reliable material flow for bottles, containers, and industrial packaging.
Pipe Extrusion
Ideal for manufacturing PVC, HDPE, PPR, and CPVC pipes.
Film & Sheet Extrusion
Supporting high-speed production with excellent melt homogeneity.
Profile Extrusion
Suitable for window profiles, cable ducts, trims, and structural plastic products.
Masterbatch Manufacturing
Ensuring superior color dispersion and additive mixing.
Plastic Recycling
Efficiently processing recycled polymers while resisting abrasive contaminants.
Compounding Lines
Designed for high-performance blending of engineering plastics and specialty compounds.
Compatible Processing Materials
Our bimetallic screws efficiently process a broad range of thermoplastics and engineering polymers.
- PVC
- HDPE
- LDPE
- LLDPE
- PP
- ABS
- PS
- PET
- PBT
- PA (Nylon)
- PC
- PMMA
- EVA
- TPU
- TPE
- Filled polymers
- Glass-filled compounds
- Flame-retardant materials
- Mineral-filled plastics
- Recycled plastics
- Masterbatch compounds
Industries We Serve
Our bimetallic screws are trusted by manufacturers across numerous industries, reflecting our commitment to quality and performance.
- Plastic Extrusion Industry
- Injection Molding Industry
- Pipe Manufacturing
- Film Manufacturing
- Sheet Production
- Blow Molding Plants
- Cable Industry
- Packaging Industry
- Automotive Components
- Medical Plastic Products
- Electrical Components
- Engineering Plastics
- Recycling Industry
- Masterbatch Manufacturers
- Compounding Industry
Custom Bimetallic Screw Solutions
Every production line has unique processing requirements. Therefore, we manufacture customized bimetallic screws based on:
- Machine manufacturer
- Screw diameter
- L/D ratio
- Polymer type
- Output capacity
- Compression ratio
- Mixing section
- Barrier screw design
- Vented screw design
- Special processing applications
Our engineering team works closely with customers to design screws that maximize productivity while extending equipment life.
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Get High-Quality Bimetallic Screws from Kaivanya Extrusion
Looking for a reliable Bimetallic Screw Manufacturer & Supplier? Kaivanya Extrusion offers precision-engineered, wear-resistant, and high-performance bimetallic screws designed to improve productivity, reduce maintenance costs, and deliver consistent processing performance. Contact our team today for expert guidance and a customized solution tailored to your plastic processing application.
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Frequently Asked Questions (FAQs)
What is the advantage of a bimetallic screw over a nitrided screw?
A bimetallic screw offers significantly better wear and corrosion resistance, making it ideal for abrasive and corrosive materials while providing a much longer service life.
Which materials can be processed using a bimetallic screw?
Bimetallic screws are suitable for PVC, PE, PP, ABS, PET, Nylon, engineering plastics, glass-filled materials, mineral-filled compounds, flame-retardant polymers, and recycled plastics.
Can you manufacture custom bimetallic screws?
Yes. We manufacture fully customized bimetallic screws based on machine type, application, material, and production requirements.
Which industries use bimetallic screws?
Plastic extrusion, injection molding, blow molding, recycling, compounding, pipe manufacturing, packaging, automotive, cable, and engineering plastics industries widely use bimetallic screws.