NRD-4 Type Internal Combustion Soft Shaft Tamping Machine

It's a portable new-type railway track ballast tamping tool.Its small-size internal combustion engine is connected with its tamping bar through its damping device directly.It possesses featrues of innovative & practical construction,small size,light weight.It's convenient to be put on & off the track.It's especially suitable for maintenance tamping operation on the speed-up line in the interval between two trains.