Induction heating used for shrink‑fitting bearing rings during disassembly and assembly at a railway repair shop
Induction Heating
Railway Induction Heating Systems
Advanced induction heating solutions for maintenance, repair and manufacturing operations across the railway industry.
Manufactured byENRX
~10 minWheel removal/fitting
~250°CLoctite release
MobileMinac units
Overview
Induction for railway work
ENRX provides a full range of induction heating systems purpose-built for railway maintenance and rolling-stock production, induction offers unrivalled accuracy, speed and controllability, making it ideal for tasks such as disassembling and shrink-fitting lock rings and bearings, replacing tyres and wheels, brazing components, straightening rolling stock and welding rails.
Induction heating delivers fast, uniform and localized heating without open flames, reducing risk, preventing shaft damage and minimizing heat exposure to adjacent components. Mobile Minac units allow on-site operations such as shrink-fitting, wheel replacement, Loctite loosening and pre-heating rails. Automated systems can also be integrated for production environments.
Applications
Where railway induction is used
Railway-specific applications include:
Induction heating Disassembling-and-shrink-fitting-bearing-and-lock-rings
High‑speed train passing through a modern city where ENRX induction heating is used for maintenance of rolling stock and rail components
Shrink-fitting and removal of lock rings, ball bearings and brake hubs
Heating and replacing steel tyres on rims
Fitting and removing wheels from axles
Releasing Loctite-fastened joints
Brazing of copper and other rolling-stock components
Induction straightening of chassis and structural parts
Rail pre-heating, hardening and in-field welding
Safe in-tunnel induction welding operations
Features
Systems, coils and control
- Localized, uniform, flame-free heating
- Mobile and stationary induction systems (incl. Minac converters)
- Adjustable coil designs for different wheel and tyre diameters
- Programmable ramp-up times, power control and dwell times
- Supports shrink-fitting, brazing, straightening and rail welding
- Remote-controlled rail welding for maximum operator safety
- Fast heating cycles (e.g., wheel removal/fitting in ~10 minutes)
- Precise temperature control for Loctite release (around 250°C)
Benefits
Safer, faster maintenance
Safer operation with no open flames, sparks or smoke
No mechanical force required for wheel removal
Eliminates shaft scratching and reduces risk of component damage
Faster turnaround and reduced maintenance downtime
High repeatability and reliable heating results
Suitable for tunnel work due to minimal emissions
Energy-efficient compared to traditional welding/heating methods
Reduced need for heavy hydraulic equipment
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