Ballast Cleaner a cutter bar runs beneath sleeper level excavating all of the ballast under the sleepers to a specified, variable depth. A conveyor then moves the ballast into the cleaner, where it gets forced through a mesh by a shaking chamber.
Ballast Blaster Undercutters outperform all other methods for ballast removal. Some rail networks prefer it to conventional on-track ballast cleaners, as they are more efficient and easier to get on and off track, especially congested networks with severe time restraints.