Import Bimetallic Screw & Barrel — Buy in wholesale FOB from Supplier in China

This bimetallic screw and barrel set is engineered for injection and extrusion processing, designed to handle abrasive and corrosive materials such as halogen-free plastics reinforced with fibres, carbon fibre, mineral fibre, ceramic, magnetic powder, and metal powder. The barrel uses superior pre-hardening 4140 alloy steel as the base material, ensuring a robust foundation for high-stress operations. The nickel-based self-melting alloy powder, sourced from American Wall Colmonoy Corporation, is applied via vacuum sintering cladding, a technology the supplier has exclusively used in China for barrel production since 2009.

The alloy coating achieves a hardness of 56 to 60 HRC, providing exceptional resistance to wear and corrosion. This construction delivers a service life 3 to 6 times longer than bimetallic barrels produced through high-temperature centrifugal casting. The molecular stability and higher alloy density of the nickel-based powder further enhance durability, making it suitable for demanding applications where standard barrels fail prematurely.

Typical buyers include plastics manufacturers in automotive, packaging, and industrial sectors where material abrasion and chemical resistance are critical. The supplier offers these components as part of a focused product line, with compatibility across a range of extrusion and injection moulding machines. Buyers should confirm exact dimensions, lead times, and packaging specifications, as these are tailored to individual orders and not publicly listed.

Ningbo Superior Machinery Co., Ltd. operates from Ningbo Free Trade Zone in Zhejiang, China, with a facility that has over 30 years of experience in manufacturing screws and barrels for plastic processing. The company holds ISO 9001:2008 certification, demonstrating adherence to international quality management standards. Its production focus is on precision components for injection and extrusion machinery, with a documented track record of supplying durable, high-performance parts to industrial buyers.

The supplier distinguishes itself as the first and, to date, the only Chinese manufacturer to apply vacuum sintering cladding technology to barrel production, a process introduced in 2009. While the profile does not disclose response rates or average response times, the trust tier classification as 'harbor' indicates a verified operational presence. Buyers should directly contact the supplier to confirm current capacity, lead times, and customisation options, as these details are not publicly specified.