Rail Infrastructure

SARPO “System for Automatic Decoupled Car Speed Control” is a system enabling car speed control in marshalling yards, shunting yards and railway sidings. The SARPO system, developed in collaboration with TENS company is based on a distributed system of KX-HTC-3 braking devices ensuring guidance to the target for every decoupled car.


SARPO system is installed in a yard in Poznan (Poland) on 24 directional tracks.
7056 pieces of KX-HTC-3 brakes were built.
SARPO Installation took place in years: 2007-2012.
The project and its implementation has been highly rated by ordering PKP PLK.

Active-retarder   Active-retarder-SARPO-1