23 - 29 Factory Street
Granville NSW 2142
Phone: 1300 643 643
In a world where transportation is constantly changing, evolving and delivering new challenges and opportunities – companies need to be competitive, to stay at the leading edge and provide more than ever before. Sigma is a global leader In the field of track air conditioning providing solutions from the chill of Switzerland to the heat of Dubai. Since our first rail air-conditioning systems designed in the 1960’s for the harsh Australian conditions of the Perth to Sydney line to our cutting edge solutions now being delivered around the world, there is not a single Rail air-conditioning application that Sigma engineers have not designed for.
Sigma aims to understand, meet and exceed the unique requirements of modern track maintenance vehicle. We understand that heating or cooling operators and equipment has to take into account air distribution, temperature gradients and the many existing components and systems that form part of the railway vehicle, whatever the requirement Sigma delivers.
As part of the Knorr-Bremse group we have the operational and financial strength to reliably deliver on any project. With life cycle responsibility of our solutions Sigma will be here for the long run satisfying operators with total air comfort, of high quality, value solutions that meet ever changing environmental demands. Sigma is the right choice for any track maintenance air-conditioning project, anywhere in the world.
Track Maintenance Vehicles
This reliable air conditioning system is the result of Sigma’s striving for engineering excellence, over 65 years of experience in locomotive air conditioning industry and continuous development. It operates with environmentally friendly R134a refrigerant, comprisses DC Operating Fan Motors (evaporator, fresh air and condenser fan motors) operate directly on 72VDC supply input, includes a PLC controller and is able to run in service at extreme high ambient temperatures of