DDP-600 Wheel Demount Press

The Simmons Dual End Demount Press (DDP-600) disassembles wheels from wheel sets. The machine consists of a hydraulic cylinder beam assembly at each end of the press, which can be anchored to concrete pedestals or fabricated risers on the shop floor. The press cylinders are equipped with centers and are extended such that the wheel set is supported by its centers throughout the demounting process. Both rams have embedded distance transducers to provide ram and axle position information to the operator at all times. One ram extends until the first wheel contacts the center abutment. As the ram continues to extend, the wheel is pressed off the wheel seat. The demount process is then repeated by extending the opposite cylinder until the second wheel is pressed off.

The press is capable of demounting a wheel set in 90 seconds. The load/unload time varies depending on the optional handling equipment selected. A typical transfer crane system will add approximately 210 seconds to the cycle time for the combined loading and unloading processes. The press can be recessed into the floor to optimize the working height of the press or facilitate material movement. It can also be used entirely above floor to minimize the installation costs.

Machine Specifications

Machine Dimensions

General Specifications

Utility Requirements

Wheel Set Dimensions