A hardening tool for every hardening challenge.

HardLine is our range of stationary heat treatment systems for surface- and through-hardening. At the heart of each HardLine machine is an EFD Induction Sinac heat generator, the industry's most advanced induction frequency converter. These acclaimed converters help ensure optimum hardening results—day in day out, year after year.

The HardLine family includes vertical, horizontal centerless and customized machines—and serial and/or parallel compensated induction power sources with a wide range of output power and frequencies.