Bimetallic Barrels at E.J.S INDUSTRY
A bimetallic barrel is a specialized cylinder for injection molding and extrusion, with a tough steel house with a wear-resistant, corrosion-resistant inner alloy (e.g., nickel, tungsten carbide). Manufactured via centrifugal casting, these barrels significantly increase service life compared to standard nitrided barrels, making them ideal for processing highly abrasive or corrosive materials.
What make bimetallic barrels better?
Dual-Layer Construction: Combines a high-strength steel backing with a 2-3mm thick inner alloy lining.
Superior Wear/Corrosion Resistance: Specially designed for processing materials with glass fillers, fiber reinforcements, or specialized plastics.
Centrifugal Casting: Creates an inseparable bond between the liner and base material, ensuring high and uniform hardness.
Cost-Efficiency: Despite higher upfront costs, they provide significant long-term savings through extended life and reduced downtime.
What barrels can be made with bimetallic?
Injection molding machines and extruders.
Blow molding machinery.
Processing engineering plastics, fluoro-plastics, and PPO.
What bimetallic alloys does E.J.S INDUSTRY have?
Nickel-based alloys: Used for severe corrosion resistance.
Iron-based alloys: Provides extreme abrasion resistance.
Where does E.J.S INDUSTRY make bimetallic barrels?
At E.J.S INDUSTRY, we have our own centrifugal casting machines to produce bimetallic barrels. Moreover we have 2 machines, which is capable to produce bimetallic barrels without delay. This is speeding up the lead-time, better quality control, less cost for the customers.
What other options does E.J.S INDUSTRY offer if bimetallic barrels are not preferred, while long life is expected?
We have other better steels such as DC53, Inconel 625, Inconel 718, Hastelloy C276. Do be free to contact us for any of your requests.
Happy 2026 Chinese New Year!
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