Precision‑machined gear component where ENRX induction heating is used for tempering of hardened workpieces to achieve optimal strength and toughness

Induction tempering

Induction tempering is a heating process that optimises mechanical properties such as toughness and ductility in workpieces that have already been hardened.

Induction heating explained

ndustrial induction heating setup where ENRX technology is used for tempering long hardened shafts and cylindrical workpieces

What is induction tempering?

Induction tempering is a heating process that optimizes mechanical properties such as toughness and ductility in workpieces that have already been hardened.

Brochure: Induction heating applications

Close-up view of induction tempering equipment applying controlled heat treatment to a metal tube or component.

What are the benefits?

Temper workpieces in mere minutes or seconds rather than hours, as with furnace tempering
Easy inline integration minimises the number of components in the process
Enable quality control of individual workpieces

Electric vehicle brake and suspension components where ENRX induction heating is used for hardening and tempering of brake calipers and related parts

Where is it used?

Induction tempering is widely employed in the automotive industry to temper surface-hardened components such as shafts, bars and joints. The process is also used in the tube and pipe industry to temper through-hardened workpieces. Induction tempering is sometimes performed in the hardening station, other times in one or several separate temper stations.

Automotive

Tube and pipe

Induction tempering station processing an industrial metal component with controlled heating inside a protective enclosure.

What equipment is available?

Complete HardLine systems are ideal for many tempering applications. The chief benefit of such systems is that hardening and tempering are performed by one machine. This delivers significant time and cost savings in a small footprint compared to alternative technologies. With furnaces, for example, one furnace often first hardens the workpieces, with a separate furnace then being used for tempering. Stand-alone ENRX Sinac and Minac systems are also used for tempering applications.

Induction heating equipment

Solutions explained

The role of induction heating in electric car manufacturing

Induction heating plays a vital role in modern electric car manufacturing. From hardening and brazing to bonding and shrink-fitting, ENRX provides high-precision, energy-efficient solutions that meet the automotive industry’s toughest demands.
Heating challenges solved

We simulate, test and solve with induction. ENRX combines digital modeling and lab verification to deliver precisely engineered heating performance for every application.
High-performance coil design

Every ENRX solution starts with an advanced induction coil design. Engineered in-house to match your process, our coils deliver up to 98% energy efficiency and consistent quality.
Lab-tested heating performance

From simulation to reality. Our lab engineers test every heating setup to ensure reliable results—tailored to your parts, process and performance goals.
Service beyond installation

ENRX provides continuous support through coils, parts, maintenance and flexible service renting - ensuring maximum performance and uptime for your induction systems.

A closer look at how it works

Hardening and tempering of ball studs and housing
Hardening and tempering of brake callipers
Hardening and tempering of piston rods
Hardening and tempering of constant velocity joints
Hardening and tempering of transmission parts. Shrink fitting of transmission bearings
Hardening and tempering of wheel bearings, hubs and spindels
Hardening and tempering of steering components
Hardening, tempering and welding of drive shafts
Hardening, tempering and shrink fitting of rotor shaft and motor housing
Hardening, tempering and shrink fitting of rotor shaft. Shrinking of motor housing. Drying of resin coating on rotor and stator.