Induction Hardening

Proven Results

Contour has proven technological advancements using the Micropulse process to harden:


  • Crankshafts
  • Camshafts
  • Bearings
  • Pinion, planetary, worm, spiral bevel, park sprag, and ring gears
  • Torque converter components
  • Steering components

CHI custom-designs and manufactures Lift and Rotate Machines, Single Shot Shaft Machines, and Crankshaft Machines.


micropulse™ process

Micropulse uses controlled pulses of energy, measured and delivered in milliseconds, to produce hardened parts with greater fatigue strength and wear resistance

contract processing

CHI maintains four flexible in-house production systems for customer contract processing.

r & D

R & D are integral aspects of CHI’s operations. Our company has sixty-two patents either granted or pending.

Contour Mexico

The Contour Hardening, Inc. plant located in Silao, Mexico has all the mirrors all the services & capabilities of our U.S. plant.

have a special need or question? consult with one of our engineers

We welcome the opportunity to provide you with additional information or assist you with your application development, contract processing, or induction hardening equipment needs.