Induction heating for automotive manufacturing
Induction heating is used across virtually every stage of automotive production, from heat-treating driveline and chassis components to bonding body panels and manufacturing e-drive parts.
For more than 75 years, ENRX has supplied ready-to-run induction heating machines and automated production lines to automakers, tier-one suppliers and sub-contractors, engineered around each customer’s components and cycle times.
Why automotive manufacturers choose ENRX machines
- Built for automated lines: machines integrate directly into robotic and inline production cells, from standalone units to complete production lines
- Repeatable results: every heating cycle is controlled and reproducible, which matters for safety-critical components such as steering parts, brake parts and drivetrain shafts
- Heat only where it is needed: targeted heating reduces distortion and energy use compared with furnace and flame methods
- Engineered around your parts: coil design, process control and handling are developed together for each component, backed by feasibility studies and process simulation before production starts
- Ready for new platforms: coils and handling can be adapted to new components, so the same machine carries over as designs change
Applications by vehicle system
Powertrain and e-drive
- Hardening and tempering of crankshafts, camshafts, connecting rods and valves
- Hardening of injectors, rocker arms, cylinder liners, gudgeon pins and balance shafts
- Hardening of transmission gears, clutch parts, synchrohubs, sun gears and input and output shafts
- Hardening, tempering and shrink-fitting of e-axle motor housings and rotor shafts
- Shrink-fitting of transmission bearings
- Bonding of motor magnets
- Drying of resin coating on rotor and stator assemblies
- Pre-heating of cylinder liners and piston segments before forming
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Driveline, chassis and steering
- Hardening of steering racks and pinions, ball studs and pins, sockets and control rods
- Hardening and tempering of CV joint parts (tripods, tulips, spiders, housings and bells), drive shafts and axle shafts
- Hardening and tempering of wheel bearings, hubs and spindles
- Hardening of suspension parts: anti-roll bars, torsion bars, springs, shock absorber and piston rods, steering knuckles and suspension arms
- Hardening of brake parts: rotors, shoes, pads and callipers
- Welding of drive shaft components
- Straightening of chassis and frame components for cars and trucks
- Pre-heating of brake discs before coating and post-heating after coating
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Body and structure
- Bonding of steel and aluminium body panels such as doors, hoods, lids, roofs and fenders, where induction is the preferred method for curing structural adhesives
- Panel staking and sandwich bonding of steel and PVC
- Bonding of rearview mirrors to the front screen
Thermal management and climate control
- Brazing of aluminium tubes, blocks, banjo nipples, heat exchangers, condensers, evaporators and compressor parts, producing strong joints with minimal visible marking
For more on induction brazing of heat exchangers and compressors, see Appliances and HVAC.
Induction heating for e-drive manufacturing
See how induction heating is ideal for refining components that are used in all modern electric cars
Related products
HardLine: Induction hardening machines
Our family of induction hardening machines for surface and through hardening, from single machines to turnkey plants
Minac®: Mobile induction heating equipment
Minac is our family of mobile induction heating equipment for brazing, curing, hardening, shrink-fitting and straightening, in the workshop or on site
Sinac®: Stationary induction heating systems
Sinac is our family of stationary, universal heat generator systems, customised with coils, cables and cooling to fit your heating process
Induction heating coils
Conventional, machined, 3D printed or hybrid coils, customised to your application and documented so we can always produce an identical one
Related applications
Induction hardening
Fast, repeatable hardening of crankshafts, camshafts, gears, CV joints and steering racks and pinions, built into automated lines and matched to each component’s specification.
Induction tempering
Optimise the toughness and ductility of hardened camshafts, crankshafts, CV joints and brake callipers, in stand-alone systems or integrated with hardening in complete HardLine machines.
Induction brazing
Clean, leak-tight joints in aluminium tubes, heat exchangers, condensers and evaporators, with localised heat that minimises distortion and oxidation.
Induction bonding
Induction cures structural adhesives on steel, aluminium and lightweight composite panels such as doors, hoods, lids and roofs, and is the preferred bonding method in the automotive industry.
Induction shrink-fitting
Precise, repeatable assembly of e-axle motor housings, rotor shafts and transmission bearings, with controlled heat that keeps components aligned and free from mechanical stress.
Induction pre and post-heating
Controllable heating of discs before and after coating, of moulds and cylinder liners, and of piston segments before forming, built into production lines for consistent results from the first part.
Induction straightening
Correct distortion in chassis and frame components with localised induction heat, adjusting the material precisely without damaging the surrounding areas.
Frequently asked questions
Image gallery
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ENRX is the world’s largest induction hardening equipment maker with more than 75 years’ experience.
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Customised coil for induction hardening of camshafts.
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ENRX induction camshaft hardening solutions are used by many of the leading names in the truck, bus, excavator and earth-moving equipment industries. Our systems are also widely used to harden marine camshafts.
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High throughput and consistent heating outcomes are essential when heat treating bars and shafts.
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ENRX designs, makes and maintains customised coils for camshaft hardening. These formed coils deliver precise heat patterns and penetration depts for perfect hardening results.
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An ENRX robot-type crankshaft hardening system in action. All our systems feature mechanical and control innovations that minimse Total Indicated Run-Out
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Car crankshafts, truck crankshafts, marine crankshafts - ENRX systems are used worldwide to harden every imaginable type of crankshaft in a wide range of production volumes.
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Seamless induction hardening of large rings and gears.
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Induction hardening uses induced heat and rapid cooling (quenching) to increase the hardness and durability of steel.
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Induction hardening increases the hardness and durability of steel
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A programmable quenching cycle in work
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A HardLine Centerless Pusher machine heat treats steel bars
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Induction hardening of steering rack
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Double hardening for double productivity. The quenching phase inside a single cabinet hardening machine with twin tailstocks and centres.
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Induction brazing of aluminium parts
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ENRX has unrivalled expertise in making efficient solutions for aluminium brazing.
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Induction is a high throughput, no-contact heating method. It helps ensure strong yet barely visible joints — and the outstanding aesthetics expected by today's customers.
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High-quality banjo nipples being brazed under a controlled atmosphere in a customised ENRX brazing machine.
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Induction brazing of brake linings
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Induction heating is a perfect method for high throughput brazing of evaporator and condenser connections
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Induction brazing of a heat exchanger.
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Induction is the preferred bonding method in the automotive industry.
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Induction is the main method for curing adhesives and sealants for car components such as doors, hoods, fenders, rearview mirrors and magnets.
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Induction bonding is the primary method for aluminium and steel panel heating
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Induction bonding. Universal fixture for lab/process trials
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Full-ring bonding with two-turn flexible coil
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Aluminium hood spot bonding tool. Note: The absence of clamps, minimal nest and relatively small curing areas.
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Hardening and tempering of ball studs and housing
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Hardening and tempering of brake callipers
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Hardening and tempering of piston rods
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Hardening and tempering of constant velocity joints
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Hardening and tempering of transmission parts. Shrink fitting of transmission bearings
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Hardening and tempering of wheel bearings, hubs and spindles.
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Hardening and tempering of steering components
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Hardening, tempering and welding of drive shafts
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Hardening, tempering and shrink fitting of rotor shaft and motor housing
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Hardening, tempering and shrink fitting of rotor shaft. Shrinking of motor housing. Drying of resin coating on rotor and stator.
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Tempering solutions from ENRX are present in the automotive and automotive-supply industries.
