HDM is a specialized enterprise in China for the design and manufacture of gearboxes for metallurgical machinery. The company has drafted national manufacturing standards for gearboxes used in lifting appliances. HDM’s products primarily serve bridge cranes, gantry cranes, cranes for metallurgical plants, ship loaders/unloaders, and polar cranes, receiving high praise from both domestic and international customers for their leading design concepts and reliability.

HDM’s gearboxes for mining machinery include wheel hub reducers for mining cars, cutting and traveling gearboxes for roadheaders, rocker and traction gearboxes for coal cutters, gearboxes for scraper conveyors, gearboxes for slag vertical mills, and wheel hub reducers for narrow gauge mine material and manriding cars, covering series 110T, 220T, 240T, and 363T.

The manufacturing technology of HDM for core components of offshore engineering equipment has seen significant improvement. Gearboxes for lifting systems, top driving devices, and winches used in offshore petroleum drilling platforms, as well as gears and gearboxes for medium/low-speed power systems in ships and deck machinery, are certified by classification societies like CCS and BV, covering top driving device types 40, 50, 70, and 90.

HDM is the nominated supplier of VOITH for locomotive gears in the Asia-Pacific region. Its products are utilized in metro, light rail, and high-speed railway sectors. HDM is also involved in the development and manufacture of gearboxes for locomotives, with manufacturing technology and quality management reaching advanced global standards.