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Mobile heat generators

Minac - Mobile heat generators



Wide range of applications.

Brazing, shrink fitting, hardening, curing, straightening, heat treatment, etc.



Suitable for heating all kinds of electrically conductive materials like copper, aluminum, steel, stainless steel, brass, titanium, etc.


Twin power output.

Many models come in a Twin version featuring two independent power outputs that can operate simultaneously.


Mobile induction.

You can move it around a workshop or factory floor. Can be loaded into a car or van and transported to work sites.


Complete range.

Available with maximum intermittent output power of 10-220 kW (6-140 kW continuous) and a frequency range of 10-280 kHz.




To learn more about Minac please download the brochure or contact your nearest EFD Induction office.
  Minac - Mobile heat generators

Seam normalizing and full body annealing


EFD Induction offers seam annealing of tube welds and full body annealing of both magnetic and non-magnetic tube products. We also provide integrated induction annealing solutions for steel strip and wire production.


Induction annealing has many benefits. The heat is generated directly in the material, leading to high efficiency and low energy costs. It is also a fast and controllable process, which will improve your throughput. And the heat is very accurate—crucial to meet today's stringent quality standards.


The right heat in the right place reforms the material structure and reduces internal stresses in just the way you want.

  Click to read the brochure
Seam normalizing




Brazing with induction heating


EFD Induction offers brazing in various important fields such as the automotive, aviation, electrotechnical and white goods industries. It includes brazing of aluminum, brass, copper, copper alloys, iron and cast iron, steel and stainless steel.


There are many reasons why using induction heating instead of gas for brazing is clearly beneficial. Induction transfers more energy per square meter than an open flame, resulting in faster heating cycles—put simply, you produce more components per hour.


The heat is also easy to check and adjust. You reduce the risk of overheating, which can lead to higher porosity and weaker joints. What's more, you reduce the risk of cold brazing as induction generates the heat in the base material.

Just as important, induction heating improves the working environment and safety. No gas needed, no open flame, no additional heating.


Click to read the brochure


Induction Brazing












Induction preheating

Preheating with induction

EFD Induction is present in a series of industries for preheating—primarily the automotive, cable and wire, electrotechnical, and tube and pipe industries. In many cases, our preheating solutions are integrated into production lines.


Using induction rather than gas or a furnace for preheating has several advantages. Heat transfer is direct—minimizing heat loss and energy consumption while increasing the production rate and improving quality.


The heat can also be controlled precisely. This makes it possible to reduce the temperature when welding and then achieve a lower cooling rate. Less risk of cold cracking and excessive hardening are some of the benefits.


And you can forget heat-spreading flames. You get a better working environment, less need for cooling and a lower fire risk.


Induction postheating

Postheating with induction

Postheating is a major area for EFD Induction, and we have designed and installed numerous solutions around the world. Many of our postheating solutions are concentrated to the automotive, aviation, cable and wire, electrotechnical, and tube and pipe industries.    


Induction is an excellent way of postheating. The heat is generated directly in the material and is very accurate—time and time again. This reduces radiation loss and shortens heating times compared with gas or furnace.   Even more important is the higher quality and throughput achieved in the end. You get, for example, a faster and improved cross linking process of cable insulation.

Straightening with induction heating

Our deck and bulkhead straightening solutions are found in the ship- building industry (deck straightening), construction industry (straightening of bridges) and trains/trucks industry (production and repair of locomotives, rolling stock and Heavy Goods Vehicles).  


Using induction for straightening means that you get the right heat, exactly where you want it. When repairing a steel chassis on a truck, for example, there’s no need to dismount heat-sensitive components such as brakes and cables.   Induction also makes life easier for staff and the environment. No gas flame to emit dangerous fumes. No flame to burn the skin. And, in addition, induction heating is easy to learn and safe to use.  


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Deck and bulkhead straightening 






Product sheet :  Straightening with induction heating

Induction heating for the automotive industry

EFD Induction has for years been a trusted supplier of induction heating solutions to numerous automakers in North America and Europe. We also work with many tier-one suppliers and sub-contractors.  


Induction heating is used within a variety of fields in the automotive industry such as:

  • Induction bonding of body parts and magnets in electric motors
  • Induction brazing of connections for air-conditioning systems, brake linings and fuel tank injection pipes
  • Induction hardening and tempering of engine, suspension and transmission parts
  • Induction preheating of transmission parts, for example shrink fitting of gear wheels
  • Induction postheating of engine parts and brake discs (polymerization)
  • Induction straightening of steel chassis







Induction heating of aviation parts

Induction heating for the aviation industry

Product quality and process consistency are obviously crucial to the aviation industry. That's why the accurate, repeatable and contact-free heat of induction heating has become so popular with aircraft manufacturers, airlines and their suppliers.


Our compact multipurpose Minac converters, for instance, are particularly sought after by maintenance divisions because of their flexibility and ease of mobility.


Here are some typical uses of our equipment within the aviation industry:

Induction heating for the electrotechnical industry

EFD Induction equipment performs a variety of crucial tasks in the electrotechnical industry. Most of our solutions for this sector fall into the following categories:
  • Brazing of conductors in motors, generators and transformers
  • One-shot brazing of short circuit rings
  • Preheating of generator components and casings before welding
  • Postheating for softening bars and removing shrink-fitted parts











Faucet brazing

Induction heating for the appliances industry

EFD Induction supplies induction equipment to the world's leading producers of refrigerators, freezers, dishwashers, washing machines and faucets. Our main area is brazing of compressor parts, but induction can also be used for the hardening of compressor parts and shrinking of parts used.


Induction heating for the shipbuilding industry

We provide equipment that is used around the world during the construction, repair and maintenance of all kinds of vessels. Some examples are:
  • Coating removal and paint stripping
  • Straightening of plate profiles after welding or other thermal/mechanical influence on the material
  • Heating before welding and bending (tubes, pipes, profiles…)





The Minac range of complete mobile induction systems is even easier to use than its acclaimed predecessor.
Minac 6/10 SM - Mobile induction heating equipment
Benefits, product features and technical data
Benefits, product features and technical data
Minac 12/18 SM - Mobile induction heating equipment
Benefits, product features and technical data
Benefits, product features and technical data
Minac 18/25 SM - Mobile induction heating equipment
Benefits, product features and technical data
Benefits, product features and technical data
Minac 25/40 SM - Mobile induction heating equipment
Benefits, product features and technical data
Benefits, product features and technical data
Benefits, product features and technical data
Benefits, product features and technical data
Benefits, product features and technical data
Benefits, product features and technical data
Benefits, product features and technical data
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