The surface induction hardening of steel and cast iron is TTL historical activity since 1986.

From 1986 TTL is improving and developing the surface hardening process and up to now the company has a lot of equipments in order to satisfy all the market needs in surface hardening: from a little screw to an oversized calender roll.

The available machines are:

  • High, medium and low frequency
  • Power from 150kW to 2500kW
  • Vertical or horizontal  treatment
  • Single-shot or steps treatment
  • Single or multi cycle

Thanks to TTL machines capability, advanced equipments and expert operators the company can make keying of steel parts or components.

Induction Hardening