Rapid Discharge Systems

Type G Door Operating Mechanism

The Miner Type "G" double-link door operating mechanism is specifically designed to provide 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 or optional simultaneous door operation
  • Exclusive secure locking system
  • Simple installation and adjustment

Simple. Reliable. Proven.

About Miner Enterprises

Miner Enterprises, Inc., was founded in 1894 and has grown to become a leading supplier of engineered and manufactured rail car components. In addition to side bearings, the company provides draft gears, discharge gates, hatch covers, and other key components for railroads, freight car builders, and repair shops in more than 50 countries. Miner is based in Geneva, Illinois View More


1 (630) 232-3000