Test machine for mining hydraulic stamps, Germany

Bucyrus DBT Europe, a company based in Lünen, Germany, contracted Montanhydraulik Reparatur und Service to repair a test cylinder, which was an essential part in a test machine for the testing of mining hydraulic stamps.

Disassembly and analysis established that the rod guiding system of the cylinder had seized up in the guide bushing. To remove this problem the rod guiding system was modified to laminate guide rings. In addition, a completely new rod was made. Delivery took place in February 2009.

Hydraulic cylinders:

  • compression force: 15,000 KN = 1,500 t
  • weight: 31 t
  • piston diameter: 900 mm
  • rod diameter: 500 mm
  • stroke: 1,600 mm