Zhengzhou Coal Mining Machinery (Group) Co., Ltd manufactures underground coal-mining equipment, including hydraulic supports, complete intelligent longwall equipment, scraper conveyors, and shearer machines. Its stated capabilities include intelligent monitoring and control, robotic welding, plasma cutting, laser cladding, and complete equipment supply for longwall and top-coal-caving mining faces.
ISO 9001 Quality Management System
ISO 3834-2 International Welding Quality System
ISO 14001 Environmental Management System
ISO 45001 Occupational Health and Safety Management System
HBT GroupFounded in 2023 from the long-running Hauhinco, DBT and Caterpillar mining-technology lineage, HBT Group manufactures integrated equipment and electrical systems for underground coal mining and tunneling. Based in Lünen, Germany, the company carries nearly 200 years of mechanized longwall experience into a global business, including a specialty in plow systems designed in-house since 1941. HBT supports its machines through in-house research, design, manufacturing and a worldwide aftermarket network.EVANS CITY, PA
Highland IndustriesSince 1988, Highland Industries has built and rebuilt underground mining equipment in Oak Hill, West Virginia, turning its beginnings as a mine-equipment rebuild facility into an OEM manufacturer. Its frames and machinery are designed for rugged mining conditions, backed by a 43,200-square-foot shop and a parts operation with thousands of stocked items. Highland also reconditions surplus equipment and provides repair, field service, and engineering support.OAK HILL, WV
Shumar’s Welding and Machine Services, IncShumar’s Welding and Machine Services, Inc. is a welding, fabrication, and machining company established in 1974, with more than 50 employees and facilities totaling 127,000 square feet. It specializes in heavy equipment and mine repair, and manufactures mining equipment including longwall mining equipment. The company operates welding, piping, and machine-shop facilities serving customers in the tri-state area.NEW SALEM, PA
Auxier Welding IncFounded in 1984, family-owned Auxier Welding Inc. manufactures custom mining equipment and OEM parts for underground mining operations. The company builds equipment at its Belle, West Virginia operation and offers customer-requested customization or modification.BELLE, WV