About Railway Business

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.


Products

Brake Systems

Brake Systems

Sona Comstar delivers advance Brake Systems for Passenger coaches (Metro, LHB, EMU/MEMU's), Freight Wagons & Locomotives, offering solutions from disc brakes to electro pneumatic, TBU and microprocessor controlled systems ensuring safety and performance

Couplers

Couplers

Sona Comstar has been a supplier of tailor made advanced Coupling systems to haul a wide range of rolling stocks from passenger coaches to freight wagons as well as locomotives with an effort to improve energy absorbing systems that can accommodate vehicle dynamics.

Suspension Systems

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

Friction

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.

Electrical Control Panels

Electrical Panels

Sona Comstar manufactures electric distribution boards equipped with protective and control components. These panels serve as a vital interface between the controller and various railway equipment, offering customized designs also adhering to international standards.  

RMPU's

RMPU

Sona Comstar offers a range of RMPU's for passenger coaches as well as Locomotives. These are microprocessor controlled units which helps in maintaining optimal temperature and humidity levels depending on ambient temperatures, modes of heating, ventilations and cooling.


Automatic Plug Doors

Automatic Plug Doors

Sona Comstar provides sliding plug door systems for various rail vehicles, featuring a SIL2-compliant control unit. These systems offer robust electrical drives, obstacle detection and comply with international safety and performance standards.

Vacuum Evacuation System

Vacuum Evacuation System

Sona Comstar provides a range of vacuum evacuation systems with low water and power consumptions which are quick and easy to use. Systems are provided with fault loggers enabling easy maintenance.

Heating Elements & Systems

Heating Elements

Sona Comstar provides customized, high-efficiency electric heaters and systems in Oil, Gas, Petro Chemicals Industries, Refineries, Heat Treatment Plants and Power applications.

Manufacturing excellence

Know More

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.