Rapid Discharge Systems

Type GR Door Operating Mechanism

The Miner Type "GR" double-link door operating mechanism is specifically designed to convert rapid discharge systems to manual single door operating aggregate cars.

The Type "GR" provides safer, faster, more trouble-free unloading of dense materials, such as coal, rock, limestone, aggregate and ore, from open top hopper cars. With locks on each door, the system allows a single person to efficiently operate the doors from either side of the car.

  • Robust design for durability and longevity
  • Independent hopper operation
  • Doors can be operated with a long steel bar
  • Exclusive secure locking system
  • Simple installation and adjustment

Simple. Reliable. Proven.