Head Wash Repair Rail Welding

HWR is suitable for repairing railhead defects between 25mm and 90mm wide and 25mm deep (depending on the rail profile), it can be used on both the parent rail and on electric flash butt welds, which often suffer from squats. It is also suitable for transversal defects, shelling and corner gauge.

The aluminothermic weld process is carried out using specially designed moulds.

  • After unmoulding, the weld is trimmed and ground in accordance with the network specifications.
  • The HWR process complies with the requirements of all modern railway networks.

Description

Pandrol’s head wash repair (HWR) process provides a cost-effective, efficient alternative to plug rail repairs. The HWR process has been adding value to rail networks in the USA and Canada since 2008, in the UK since 2013 and in France since 2015.