Damper Overhaul (Rail)

Our Maintenance division is dedicated to overhaul, testing and adjustment or re-engineering of railcar suspension dampers (shock absorbers). With more than 20 years of experience we can offer peace of mind when it comes to the suspension systems on your rollingstock. Sigra ‘s overhaul service has been utilised by all major rail operators in Australia and offers a significant saving in both time and and money compared to discarding and replacing with OEM units at a much higher cost and long delivery delays. Sigra overhauls thousands of Railcar and Locomotive dampers each year, helping to keep our customers' maintenance programs on track.

We repair and test every damper according to its original specifications. Also certificates of conformance as well as test logs and print outs for every damper overhauled are available upon request. All dampers are tested using our Computer Aided Control (CAC) Damper Testing
machines. Each Force vs. Displacement chart (as below) is then inspected for irregularities and the valving forces are set to the correct value.

We are an approved service provider for all major rail operators in Australia and New Zealand and have overhaul programs and specifications in place for most major brands, including but not limited to:

Shock Absorber Force vs. Displacement Report 2.jpg

  • MSA Dampers

  • Koni

  • Monroe-Tenneco

  • Sachs

  • Dispen

  • Kayaba

  • ASEA

For further information regarding our damper overhaul service and how we can improve the life cycle cost of the dampers in your fleet, contact us today.