Import Customized Hydraulic Support Connector — Buy in wholesale FOB from Supplier in China

The Customized Hydraulic Support Connector is a load-transmitting component designed for underground mining systems, primarily linking scraper conveyors with hydraulic supports. It operates under cyclic tension, compression, and torsional loads in high-humidity, dust-heavy environments. The connector is manufactured from alloy steel with surface hardening to resist abrasion and fatigue, with standard bore diameters ranging from 38 mm to 52 mm and thread sizes matching ISO 724-1. Dimensions are adjustable per customer drawings, and the unit is typically machined to a surface roughness of Ra 3.2 µm for optimal sealing and wear resistance.

The base material is typically 42CrMo4 or equivalent, chosen for its tensile strength above 900 MPa and impact toughness under sub-zero conditions. Surface treatments include zinc-nickel plating or black oxide coating to inhibit corrosion in humid mine air. While the listing does not specify certification standards, industry norms require compliance with EN 10083-3 for quenched and tempered steels and ISO 12100 for machinery safety. Tolerances on critical mating surfaces are held within ±0.05 mm to ensure alignment under dynamic stress.

These connectors are purchased by mining equipment integrators, maintenance contractors for coal and metal mines, and OEMs supplying longwall systems in China, Australia, and Eastern Europe. Buyers typically order in batches of 50 to 500 units, depending on fleet size. Trade terms are generally FOB Jiaozuo Port or CNF to destination ports. Lead time is approximately 25 to 35 days after deposit, and packaging is in wooden crates with desiccant to prevent moisture ingress during ocean transit.

Henan Shuangzhi Machinery Equipment Co., Ltd. is based in Jiaozuo City, Henan Province, operating from the Haojiang Steel Structure Logistics Park. The company specializes in manufacturing and supplying hydraulic components for mining machinery, with a focus on connectors, pins, and load-transfer fittings. The listing confirms no certifications, no export history, and no public client references. Response metrics are not available, indicating no active engagement on the platform, but the physical address and product specificity suggest a local manufacturer with production capability.

There is no verified information on company size, years in operation, or revenue. The supplier does not claim ISO certification, export experience, or R&D capacity. The product description reflects direct engineering knowledge of mining hydraulic systems, suggesting in-house design capability. Buyers should treat this as a direct manufacturer with limited digital footprint and verify all technical claims through sample testing before bulk orders.