Electro-hydraulic equipment used in mining operations employ Deublin rotating unions including shuttle cars and coal cars, drill heads, backhoes, clam shell cranes and drag lines. In addition, boom hoists, retrieving drums and bucket drum clutches each require rotating unions.
Continuous miners use Deublin rotating unions in face cutters and water cooled drills to carry water to the drill head, and minimize coal dust. Unions can be found in mine or shuttle cars and coal cars.
Quarries and Strip Mining
Rock drills use rotating unions to blow air through the center of the drill to evacuate rock chips and keep dust down. Backhoes, clam shell cranes and drag lines are used extensively in strip mining operations.