Induction heating for machinery and heavy engineering
Induction heating is used throughout machinery and heavy engineering, from hardening large gears, bearings and rings to shrink-fitting heavy components and brazing tools. ENRX builds the machines for these jobs, from HardLine hardening machines to mobile and stationary systems for shrink-fitting, brazing and pre-heating.
Why machinery manufacturers choose ENRX machines
- Built around the part: HardLine offers vertical, horizontal and tailor-made hardening concepts with CNC-controlled multiple axes, quality supervision and fully automatic loading
- Localised heat: heat goes only where the part needs it, which limits distortion on large components
- Mobile where needed: Minac and Ventac systems can be used in the workshop or in the field
- One supplier: hardening machines, heat generators, coils and handling equipment from the same source
Hardening of large gears, bearings and rings
- Hardening of large bearings and bearing rings
- Hardening of slewing rings
- Hardening of gear wheels and large gears, including gears over 0.6 m in diameter, big gear rings and gear boxes
- One-shot hardening of cam curves
- Hardening of parts for big off-road machines
- Hardening and tempering of chains
- Hardening of files
For slewing rings, bearings and gears in wind turbines, see Renewable energy.
Shrink-fitting
- Shrink-fitting of bearings
- Shrink-fitting of gear wheels before assembly
- Heating of locking rings for assembly and disassembly
- Shrink-fitting of train wheels
- Shrink-fitting of turbine discs
For turbine bolt heating, see Electrotechnical.
Brazing
- Brazing of hard metal tool tips
- Brazing of rock drills
- Brazing of steel and brass tube in a protective atmosphere
Bolt heating and cable work
- Bolt heating on tower foundations
- Induction heating of wind turbine cables
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
Ventac: Air-cooled induction heating system
Ventac is our portable air-cooled induction heating system that combines high continuous output with small size and low weight
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 large bearings, slewing rings and gears, including gears over 0.6 m in diameter, in HardLine machines matched to each part.
Induction shrink-fitting
Precise assembly and removal of bearings, gear wheels, locking rings, train wheels and turbine discs, with controlled heat that avoids mechanical stress.
Induction brazing
Clean, repeatable joints in hard metal tool tips, rock drills and steel and brass tube, with localised heat that minimises distortion and oxidation.
Induction pre-heating
Controllable heating of tower baseplates and tower rings before welding, with portable systems and quick-wrap heating blankets for work in the field.
Paint and coating removal
Flame-free removal of paint and coatings from steel components with a mobile induction system.
Frequently asked questions
Image gallery
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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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An optical heat sensor measures chain temperature. The sensor is just one of many quality assurance features available for an ENRX chain treatment solution.
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A two-lined ENRX chain heat treatment solution. Our unique coil design means we can reduce the height of the lines considerably.
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Chain heat treatment. An integrated induction hardening and tempering solution enables you to easily produce premium grade chain.
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ENRX offers hardening solutions for virtually any dimension of raceways, balltracks and gears.
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Devising brazing systems for carbide tips, blades and bits is an ENRX specialty.
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Shrink-fitting of main shaft bearings and sleeve rings.
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Bearing rings can be heated in a completely uniform manner and removed while the shaft remains cold.
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Ventac is particularly well suited for pre-heating, post-heating and shrink-fitting applications.
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The use of induction heating for bolt expansion in high-pressure turbines is a powerful business tool.
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A programmable quenching cycle in work
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Induction heating is a time and labour-saving alternative to inefficient flame and resistance heating for oil and gas processing plants, chemical plants and power stations.
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The innovative ENRX shrink-fitting system can heat any size of motor housing for electrical motors and pumps.
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HardLine heat treatment solutions for hardening of large rings and gears
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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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Bolt heating on tower foundation
