Track renewal train

Prior to the arrival of the track renewal train, preparation tasks must be completed.

[1] The new rails usually need to be prepared prior to the arrival of track renewal train.

[3] Some units have a machine to automatically remove spikes in the older type of wooden sleepers.

The track renewal train has a machine that pulls the old sleepers out from the ballast.

[1][4] Some machines have an automatic track copying by recording the track geometry of the old rails prior to the removal, then the machine will calculate the exact amount to clear the ballast bed to prepare for laying new sleepers and rails to match to the original geometry of the old ones in term of cant, leveling and positioning.

These special rails also connect between cars allowing operators to travel along the entire length of the train.

The machine puts sleepers onto the ballast bed and spaces them to the exact position required by specification.

This is done by heater units of the track renewal train that warm the rails to the specification before laying on the sleepers.

At the end, a large crane or conveyor belt with a magnet will be used to take all loose parts that have been left on the tracks to storage for reuse or recycling.