LiLi Wei

NINGBO SUPERIOR MACHINERY CO.,LTD is a professional manufacture producing high-quality precise screws, barrels and related parts. We have a full set of facilities for heat treating, bimetallic centrifugal casting, vacuum sintering, alloy spray welding and quality testing. SUPERIOR has become a modern enterprise that covers an area of nearly 20,000 square meters, and established dozens of cutting-edge production lines, heat treatment shops, quenching & tempering shops, nitriding shop, alloy shops, as well as physical & chemical labs with state-of-the-art testing equipments for the analysis of nitriding penetration, properties, metallographic phase, hardness, torque, tension, straightness and roughness etc. SPECIFICATIONS OF OUR NI-BASED BIMETALLIC BARREL: Basic Material for body: superior pre-hardening material 4140 Alloy powder: nickle-based self-melting alloy powder from American Wall Colmonoy Corporation Processing: vacuum sintering cladding ( we're the first and unique Chinese factory applying this technology to barrel production since 2009!) Hardness: 56-60 HRC Service life: 3~6 times than bimetallic barrels processed by high temperature centrifugal casting Application: halogen-free plastic, the high abrasion, corrosion materials adding high fiber, carbon fiber, mineral fiber, ceramic, magnetic powder, metal powder etc. Advantage: more stable molecular structure, higher density of the alloy power than common bimetallic barrels. Meanwhile, auxiliary equipments (Hopper dryer, Cabinet Dryer, Autoloader, Chiller, Crusher etc) , various accessories (gearbox, heating ring, mold etc) and other related products are also provided.