Multitalent for ballast bed cleaning

More information
Conventional lines
Heavy haul
High speed
Field of application
Working mode
Continuous action


  • High screening quality due to self-levelling Shaker box super elevation
  • Thee screen design for high quality ballast cleaning
  • Short set-up times
  • No need to cut the rails, neither at the start nor at the end of work.
  • No full track closures - the time required for ballast cleaning in turnouts is reduced significantly.
toggle Fullscreen

The URM700-2 universal ballast cleaning machine is the new multitalent for ballast bed cleaning. The new excavating unit can vary the excavation width infinitely. There is no need to dig an entry hole for the guide bar, in preparation. Thus, this machine makes it possible to clean the ballast bed without removing the turnout. Moreover, it allows for continuous working progress. In addition, it cleans the ballast shoulders. The machine is also suited for maintaining large high-speed turnouts with movable-point frog. Another advantage is that sections of track at connecting tracks and between turnouts can be cleaned in one pass.

Thanks to the fast and independent installation and removal of the excavating unit, the URM 700-2 works cost-efficiently on short sections of track.

Excavating chain in guide bar design

The design of the new excavating unit is in the shape of a sword, incorporating a horizontally circuiting excavating chain, and is slewed either to the right or to the left under the skeleton track. Due to this pivoting suspension it is possible to carry out an infinite variation of the excavating width in continuous working action. When slewed in, the excavating guide bar is stabilised by a holder at the other end. This makes possible a higher working capacity. Shoulder excavating units prepare the installation of the guide bar and pick up the excavated ballast during working operation.

Modular ballast cleaning system

A screening car for thorough cleaning of the ballast is part of the system. The material conveyor and hopper units are equally important. They guarantee efficient material logistics and the continuous working mode of the URM700.

Methods of operation

The URM700 system can perform all standard working methods of on-track ballast cleaning, particularly ballast cleaning in turnouts and plain track. In addition to this, it is able to clean only the ballast shoulders. The supply of new ballast is an integral feature of the design in all variations and it is also possible to perform a full exchange of the ballast.

Due to the fast and independent installation and removal of the excavating guide bar, the URM700 can also work cost-effectively on short sections of track (spot cleaning).

Technical data URM700-2

Length 220' 9''  
Width 10' 4''  
Height 15' 3''  
Weight 426 000 lb
Engine Power 875 + 225 HP
Travel Speed (towed) 60 mph