The Railway Business specialises in the Design, Development and Manufacturing of a comprehensive portfolio of railway products. This includes brake systems, suspension systems, couplers, roof-mounted package units (RMPU), automatic plug doors, vacuum evacuation systems, electric panels, rubber and friction products. The Railway Business maintains a significant presence across a diverse range of rolling stocks, encompassing passenger coaches, Locomotives, Freight Wagons as well as Electric Multiple Units (EMU's/MEMU's) serving both the domestic and international markets.
About Railway Business
Products
Suspension Systems

Sona Comstar has been manufacturing heavy duty hydraulic dampers for Indian railways since 1962. Company manufactures a range of Air Springs and control equipment that ensure optimal performance and comfort. Company also manufactures Failure Indication and Brake Application (FIBA).
Friction Products

Sona Comstar manufactures a range of friction products starting from composite Brake pads & Brake Blocks to Brake Discs. Raw materials are sourced from prime manufacturers/mines to ensure proper quality. This mixers are PLC controlled to ensure desired quality products. Company is fully equipped with needed facility like Dynamo labs.
Manufacturing excellence
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It is an ISO 9001:2015, ISO:14001:2015 certified facility and has received coveted railway
industry specific IRIS: REV03 (ISO TS/22163) certification with products conforming to
Indian RDSO (Research Design & Standard Organization) as well international standards.
Railway Business facility is spread across ~850K Sq Ft. , housing robust production and
testing facilities backed with strong quality practices and state of the art calibration
facilities.
Transforming Railways
A 60 YEAR LEGACY OF INNOVATION
We are dedicated on revolutionizing the railway industry through cutting-edge technology, sustainable practices, and enhanced safety measures. Our ultimate goal is to create a seamless travel experience while minimizing environmental impact.