This is our induction hardening machine for idlers and track rollers used
in the continuous track of agricultural machinery such as combines.

Our specialized semi-open coil heats the rotating workpiece while the
inner surface is quenched by quenching water sprayed from the jigs.

While the varying material content of cast iron products such as this idler
make hardening difficult, we were able to achieve stable hardening through
detailed coil design and extensive trial and error calibration.

The inner surface quenching helps to prevent cracking and ensure
quality hardening.

~Induction Hardening Cracking Idler Roller Agricultural Machinery
IH Heat Treat~