Induction Shrink Fitting Electric Motor Rotors and Stators

Radyne Electric Motor Assembly machines deliver high volume production for products consumed in products including HVAC, Robotics, Electric Vehicles, Heavy Equipment and Transportation to name a few. A wide array of Industries from consumer durables and construction through to aerospace are served by Radyne Electric Motor Assembly machines. Radyne offers Induction Power Supplies, Induction Tooling and Cooling Systems to integrators and Full-Turnkey Integrated assembly cells to end users as well as factory integrators.

Electric Motor Assembly Machine Options include:

  • Extended Process recipes
  • Custom,  tooling
  • Process Signature Monitoring and Recording
  • Robotic Integration, load and unload
  • Conveyor, Pick and Place and Rotary in and Outfeed

Radyne Electric Motor Assembly machines provide repeatable high volume assembly trusted for today’s demanding applications.

Parts made from any metal can be assembled: steel to steel, steel to copper, aluminum to steel, magnesium to steel, etc. Usually, the temperatures involved in heating for expansion are low to avoid changes in metallurgical structure. In practice, the operation is simple, requiring minimal preparation of surfaces, and no cleaning after assembly. Since the securing force is mechanical, superficial oxidation or tarnishing does not interfere, avoiding any need for the use of flux. Parts assembled by shrink fitting can be disassembled by selectively heating components. This procedure is especially suitable for induction heating with its rapid heating rate and accuracy, permitting replacement of worn parts or correction of alignment.

Induction heating offers unique advantages in shrink fitting. Heating may be localized, providing sufficient expansion locally for a shrink-fit without heating a whole large casting or carefully machined component which minimizes distortion. This rapid, selective heating also facilitates dis-assembly of shrink-fitted components. Induction heating provides a flameless, fast, repeatable process that can be incorporated into production lines with minimal material handling and easy automation integration.

Related Products:

  • Electric Motor Rotor Brazing
  • Electric Motor Lamination Varnish Curing
  • Electric Motor Lamination Glue Curing
  • Electric Motor Shaft and Spline Hardening


Radyne Corporation

211 W Boden St. Milwaukee, WI 53207

  • Phone: (414) 481-8360
  • Toll Free: (800) 236-8360