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Induction Shrink Fitting

What is Induction Shrink Fitting?

Induction shrink fitting is the use of induction heating technology to preheat metal parts between 150 ˚C and 300 ˚C thus causing them to expand and allow for the insertion or removal of another component. Induction Shrink Fitting technique comprises the heating of the ‘outer’ component so that it undergoes thermal expansion. The two components can then be comparatively easily fitted together. Induction Shrink Fitting is widely used in the automotive industry to shrink fit gears and rings and also used for shrink fitting tasks on offshore platforms and are increasingly used in heavy duty to take out the giant nuts and bolts in industries like turbines of power stations and turbines of power stations.

What is the process of Induction Shrink Fitting?

Normally, metals expand when heated known as thermal expansion. This effect is exploited by Induction shrink fitting to either fit or remove parts. A metal part is Induction heated to between 150 °C and 300 °C which makes it expand and allow for the insertion or removal of another component. When, for example, fitting two components of pipe together, one part is heated until its diameter is expanded sufficiently to be fitted over the other part. When the connected component returns to normal temperature, the joint becomes strong and is called shrink fitted. Similarly, thermal expansion can be used to slacken the joint before disassembly.

What are the advantages of induction shrink fitting?

Induction Shrink Fitting process allows consistency, controllability, accuracy and speed. Also, the heat being produced within the part, you only heat the component you need rather than the whole assembly or atmosphere around it. The Induction Shrink Fitting process produces exceptionally uniform consistent heat, allowing less heat to be used and the temperature mechanism is accurate with precise control of ramp-up times and holding temperatures. Induction Shrink Fitting involves no naked flame which allows this method to be used in a wide range of applications in unpredictable environments like in petrochemical applications.

Induction Shrink Fitting

Induction Heaters Products

Precision Instruments & Allieds is leading manufacturer of Induction Heaters used for mounting and dismounting shrink fit machine elements like bearings, gears, couplings and other transmission components. Precision Instruments & Allieds provide industrial induction bearing heaters with industrial requirements with reliability… Read More
Precision Instruments & Allieds is leading manufacturer of Induction Heaters used for mounting and dismounting shrink fit machine elements like bearings, gears, couplings and other transmission components. Precision Instruments & Allieds provide industrial induction bearing heaters with industrial requirements with reliability…. Read More

Induction Heaters by Ratings

In Aviation Industry, product quality and process consistency are obviously crucial. Precise, repeatable and contact-free induction heating is crucial for aircraft manufacturers, and their suppliers. Our compact Induction Heaters are chiefly sought after by maintenance divisions because of their ease of mobility…. Read More

Automotive Industry is one of the most important economic sectors where the factories for automobiles are precisely designed for manufacturing using well-regulated, dependable heating tools is a must. Induction Heaters are widely used in Automotive Industry for induction hardening of engine…. Read More
Precision Instruments & Allieds’ Induction heating provides solutions for many applications, from copper and aluminium cable, structural ferrous and non-ferrous wires, conductors to fibre optic production….. Read More
In fastener manufacturing, induction heating for threading, heading, and patching processes improve production rates and fastener product quality. Induction Heaters are able to heat fasteners quickly, efficiently, and with maximum repeatability. …. Read More

Induction heaters are widely used for food and beverage processing for applications such as drying & dehydrating, sanitation & disinfection, pasteurization, baking, etc on industrial scales. Induction heating is completed using a process called susceptor heating which consists of using an induction coil to heat an electrically …. Read More

Induction heating provides a faster, superior substitute to furnace heating and more efficiently heating in forging applications. Induction heating has high power density, exceptionally rapid heating, with exacting control over the heated area. Precision Instruments & Allieds’ Induction Heaters Induction heating technology…. Read More

Precision Instruments & Allieds’ supplies Induction Heaters to the world’s leading producers of freezers, refrigerators, dishwashers, washing machines and faucets. Induction heaters are used for induction heating for controllable, accurate, and repeatable, leak-proof and corrosion-resistant joints. …. Read More

Induction heating provides quick, reliable heat for the medical devices manufacturing industry and research applications. Induction Heaters are widely used in the medical device manufacturing industry for applications like catheter tipping, annealing steel tubes, brazing miniature parts, curing…. Read More

Dies and Moulds are used in numerous manufacturing procedures and in several situations the process would require induction heating. The procedure of injection molding of plastic or rubber products needs pre-heating of the molds to a higher temperature, to confirm the proper flow…. Read More

Precision Instruments & Allieds’ Induction Heaters Induction heating has been serving oil and gas service companies and is used within a variety of fields in the oil and gas industry. Induction Heaters are widely used in Oil & Gas Industry for applications like pre weld heat treatment, post weld heat treatment…. Read More

Precision Instruments & Allieds’ is the leading supplier of heating solutions for the power generation industry and energy sector.  Induction Heaters are widely used in the Power Generation Industry for applications like production of gears and slewing rings for wind turbines, industrial gas turbine engine…. Read More

In Railways, Induction Heaters are widely used for crucial tasks in the manufacture and maintenance of rolling stock and rails and are chiefly sought after because of their ease of mobility and flexibility. Induction Heaters are widely used in railways for shrink-fitting of ball bearings, lock rings, steel tyres on rims…. Read More

Induction heaters are extensively used in shipyards for the construction, repair and maintenance of all kinds of vessels and are chiefly sought after because of their ease of mobility and flexibility. Induction Heaters are widely used in heat treatment of shafts, straight welding of beams in double hulls…. Read More

Induction heating has outstanding reliability, efficiency and robustness. Induction Heaters are widely used in Tube & Pipes Manufacturing Industry for applications like preheating and post heating of various work pieces, Preheating and stress relieving of OCTG pipe ends, Seam annealing of longitudinal tube welds…. Read More

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