Ningbo Haitian Parts Trading Co., Ltd. supplies aftermarket and OEM spare parts for Haitian, Chen Hsong, Sumitomo, Engel, and Arburg injection molding machines. Our main products include nitrided screw barrels, bimetallic screw barrels, nozzles, heater bands, thermocouples, check rings, and hydraulic valves. Screw diameters range from 18mm to 120mm, with L/D ratios of 18:1 to 25:1, and surface hardness up to HRC 60 after nitriding.

All parts are inspected for hardness, dimensions, and surface finish before shipment. We keep over 5,000 SKUs in stock and can ship within 24 hours for urgent orders. Custom screw barrels are available based on drawings or samples. We export to the US, Mexico, Poland, Vietnam, Indonesia, and the Middle East. Bulk pricing starts at 10 pieces. Free samples for regular customers.