PSTEK Co., Ltd products

Dual-frequency induction hardening is a technology that is used to heat treat precise gear materials that require contour hardening in order to make them high-grade materials. PSTEK’s dual-frequency induction hardening instantly outputs intermediate frequency and high frequency using one inverter, realizing contour hardening. The use of dual frequency for contour hardening enables a stronger impact resistance, fatigue strength and wear resistance than a general induction hardening. As well, only the required parts are heated for a short period of time, which offers significant benefits. The minimization of material deformation can considerably reduce energy costs and post-processing process costs, while improving productivity. This is a next-generation technology that is optimized for the automobile and special part industries, which require a high level of product quality.

PSTEK’s induction heating system for heat treating regulates frequencies and power output in optimum states through a regulation system it has independently developed, ensuring top-quality heat treating. The system uses the newest IGBT and MOSFET to enable 4,500 kW and at least 800 kHz (MHz) power supplies. At PSTEK, we use our competence in electromagnetic field computer analysis and decades of various heat treating applications to suggest and provide optimum supplies and device configurations based on customer demands and conditions.

This is a DC/DC converter for an internal drive, manufactured to be used as a booster for ammunition-carrying armored vehicles, as requested by Hanwha Defense (previously, Hanwha Land Systems), the defense unit of Hanwha Group.