The Superior Induction Hardening System.
"Greater than 25 years of gears"

The Superior Induction Hardening System.

Contour Hardening is a full service induction hardening system manufacturer, specializing in induction hardening systems, contract processing, and application development work.

CHI manufactures induction hardening machines using an advanced computer-controlled patented induction heating technology known as the Micropulse Process.  CHI developed the Micropulse Process to rapidly harden gear teeth and other irregularly shaped parts requiring a high degree of case depth hardening and pattern accuracy.


CHI's proprietary systems and processes have been used for induction heat-treating millions of parts.  Parts heat-treated by CHI's patented processes exhibit less distortion.  They are stronger and more durable, and their quality is superior.

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