ENRX induction heating system used for shrink-fitting a stator housing with precise controlled heating
Induction Heating
Shrink-Fitting System – Electrical Motors & Pumps
Induction heating system designed for fast, precise and safe shrink-fitting of bearings, rotors, impellers, and pump components.
Manufactured byENRX
Minac / SinacPower sources
No flamesHeating method
UniformThrough-heating
Overview
Shrink-fitting for motors and pumps
Induction heating is the preferred method for mounting bearings, rotors, impellers and pump components. Technology provides fast, clean and controlled heating that expands metal parts to allow easy assembly without mechanical stress or overheating.
The system delivers uniform through-heating, reducing risk of distortion, burns, or damage to precision-machined surfaces. Induction avoids open flames and contact heating, offering predictable temperature rise with full control over heating cycles, holding temperatures and ramp-up speeds.
The shrink-fitting process is compatible with a wide range of motor housings, shafts, rings and pump assemblies. Mobile Minac units or stationary Sinac systems can be used depending on workshop layout and production volume.
Applications
Where shrink-fitting is used
ENRX induction system shrink‑fitting a stator house in a controlled automated setup
ENRX induction heating setup preparing motor housing components for shrink‑fitting
Shrink-fitting of electric motor bearings
Mounting and removal of rotors
Pump impeller installation
Fitting rings, sleeves, hubs and coupling components
Maintenance and overhaul of motors and pumps
Industrial assembly workshops and service centers
Features
Heating control and safety
- Rapid and uniform induction heating for shrink-fitting
- Full temperature and time control for precise assembly
- No flames, no direct contact, no risk of overheating
- Suitable for rotors, bearings, shafts, impellers and pump parts
- Compatible with Minac mobile systems and Sinac stationary units
- Safe operation with water-cooled handheld inductors
- Minimal power consumption with high heating efficiency
- Clean, silent, low-maintenance technology
Benefits
Faster assembly without stress
Faster, safer and more repeatable shrink-fitting operations
Eliminates mechanical stress and press-fit damage
Reduces downtime during motor and pump assembly
Protects bearing life by avoiding uneven or excessive heating
Improves assembly accuracy and long-term reliability
Lower labor cost compared to traditional heating methods
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