The workpiece in the center of the hardening machine is glowing red
during heating.
The green box with handles is the coil unit, featuring a semi-open coil unit
positioned over the workpiece.

For muilt-diameter shafts, our machines are designed so the case depth is
sufficient even in the cruved corners of the shaft surface.

The workpiece shown is the thinnest and lightest of its kind in the industry,
and our machine is designed to make precision hardening possible
using our dip spray quench method and straightening roller for low runout.

~Driveshaft Induction Hardening Machine② Automobile Parts
IH Heat Treat~