Induction Heating
Induction Brazing System for Short-Circuit Rings
A high-precision induction brazing solution designed to braze short-circuit rings with minimal heat input, high accuracy and outstanding joint quality.
Manufactured byENRX
~1,500 mmMax ring OD (one-shot)
One-shotor segment brazing
Minac / SinacPower sources
Overview
Brazing short-circuit rings
ENRX short-circuit ring brazing systems utilize unique coil technology that delivers rapid, accurate and localized heating with minimal heat input. This minimizes thermal stress on shafts and prevents excessive heat transfer into laminations—common issues with flame brazing. Induction brazing provides precisely controlled temperatures, reducing the risks of oxidation, copper overheating, grain growth and ovality, thus eliminating post-process rebalancing of squirrel-cage rotors. Systems support both one-shot brazing for small/medium rings (up to ~1,500 mm OD) and segment brazing for large rings. Induction is clean, quiet, flame-free and ideal for automated and high-volume rotor production.
Applications
Where ring brazing is used
Induction brazing of short-circuit rings for squirrel-cage rotors in:
Industrial drives
Generators
Applicable for small, medium and large rotors requiring strong, clean, corrosion-resistant joints with minimal deformation and high electrical performance.
Features
Coil technology and control
- Unique ENRX Induction coil technology for uniform heating
- Minimal heat input to protect shafts and laminations
- Precise, controlled temperature profiles
- Suitable for one-shot and segment brazing
- Faster brazing cycles compared to flame heating
- No-contact heating improves process stability
- Clean and safe working environment with minimal fumes
- Compatible with Minac and Sinac induction power sources
Benefits
Clean joints, no rebalancing
High throughput and reduced process times
Consistent, repeatable joint quality
Reduced oxidation and minimal flux usage
No risk of unwanted impacts or overheating
Cleaner environment with low noise and low ambient heat
Improved operator safety and ergonomics
Lower energy consumption and high efficiency
Reduced need for post-brazing corrections
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