Induction shrink-fitting

Induction shrink-fitting is where we use thermal expansion to either fit or remove parts.

Induction heating explained

ENRX Ventac aircooled induction heating equipment used for shrink fittiing job

What is induction shrink-fitting?

Induction shrink-fitting uses thermal expansion to fit or remove parts made of metal. By employing controlled heating, this method takes advantage of the expansion and contraction of materials, ensuring a precise and secure assembly or disassembly process.

Induction heating is used for shrink fitting of bearing rings

What are the benefits?

Process controllability, consistency and speed
Accurate heat reduces the risk of ovality and is energy efficient
Precise control of ramp-up times and holding temperatures

ENRX--Induction-Hardening-and-shrink-fitting-of-rotor-shaft-and-motor-housing-

Where can it be used?

Our products are used in the automotive industry to shrink-fit gears, rings and motorhousing. They also play a critical role in maintaining and repairing aeroplanes, trains and trucks. Moreover, these products are employed in shrink-fitting tasks on offshore platforms and are increasingly used to remove giant nuts and bolts in power station turbines.

Induction heating equipment used for shrink fitting application in railway repair shop

What equipment is available?

We provide versatile shrink-fitting solutions with two mobile products, Minac and Ventac, offering flexibility for on-the-go operations. Our stationary heat generator system, Sinac, is customisable
for maximum efficiency, ensuring consistent and controlled heat for various shrink-fitting applications.

Image gallery

Ventac is a sustainable choice with its more than 97% efficiency – far better than any other air-cooled induction heating system.
Shrink fitting with flexible cable
Disassembling and shrink-fitting bearing and lock rings.
Bearing rings can be heated in a completely uniform manner and removed while the shaft remains cold.
The innovative ENRX shrink-fitting system can heat any size of motor housing for electrical motors and pumps.
More and more automotive sub-contractors are opting for induction heating to shrink-fit gear wheels
Induction heating used for changing the shafts of an old bridge
Disassembling and assembling of bearing rings at a railway repair shop.
Manual solution for shrink-fitting of motor house
Motor house: A fully automated system with robot handling.
Motor house: A semi-automated system with manual loading and unloading.
ENRX has delivered numerous solutions for shrink-fitting of stator housings.
Shrink-fitting of main shaft bearings and sleeve rings.
Shrink-fitting of rotor shaft and motor-housing
An operator replaces a bearing that has been heated with an ENRX mobile Minac system