Conical twin screw barrel

The conical twin screw barrel from Zhejiang Jinteng Machinery Manufacture Co., Ltd. is engineered for plastic extrusion and compounding systems, with precise dimensional tolerances ranging from 45/90mm to 92/188mm in diameter-to-length ratios. The barrel surfaces are manufactured using centrifugal casting with tungsten carbide, achieving a surface roughness of Ra 0.4um and an alloy hardness of HRC 50-65 after quenching and tempering. Material options include 38CrMoAlA, 42CrMo (JIS SCM440), 9Cr18MoV, and SKD61, selected based on wear resistance and thermal stability requirements.

These barrels are typically used in high-shear applications where material degradation must be minimized, such as in PVC, engineering plastics, and recycled polymer processing. The nitride layer depth of 0.5-0.8mm and nitride hardness of HV850-1000 provide extended service life under abrasive feedstocks. The alloy depth of 0.8-2.0mm ensures structural integrity during prolonged thermal cycling. These specifications align with standard industry practices for twin screw extrusion components in Asia and Europe.

Buyers typically source these barrels for replacement in existing extrusion lines or for new machinery builds in packaging, pipe, and film production industries. Minimum order quantity is one set, with shipments departing from Ningbo or Shanghai ports. Packaging is industrial-grade, with anti-corrosion coating and wooden crate reinforcement. Lead time and incoterms are confirmed directly with the supplier, as they vary by order volume and destination.

Zhejiang Jinteng Machinery Manufacture Co., Ltd. is a manufacturer based in Dinghai, Zhoushan, Zhejiang, with a physical address at No.14 Ligang North Road. The supplier is verified as an importer through harbor-level trust signals and specializes in extrusion components for plastic machinery. The listing shows no claims about company history, employee count, annual revenue, or client names, and no certifications are referenced.

The supplier’s focus is on the production of conical twin screw barrels using centrifugal casting and surface hardening techniques. There is no mention of R&D capacity, ISO certification, or export experience beyond the listed port departures. Response rate and average response time are not available, indicating limited buyer engagement tracking. All technical data provided is consistent with industrial manufacturing norms but not independently verified.