ProHeat 35 | MillerWelds

ProHeat 35 Induction Heating System

The ProHeat 35 offers 3 unique systems to best suit your heating needs.  Preheating, Hydrogen Bake Out, and Post Weld Heat Treatment in a variety of applications along with various other heating applications.


System Options


Air-Cooled System

For heating applications up to 400° F (Preheating and various other heating applications)

The induction blankets easily conform to circular and flat plates and install in a matter of seconds and are.

Designed with flexibility in mind, the air-cooled induction heating cables can be wrapped into coils of various shapes and sized to fit almost any induction heating application.

View Specifications [PDF]


Liquid-Cooled System

For heating applications up to 1450° F (Preheating, Hydrogen Bake Out, Post Weld Heat Treatment, and various other heating applications)

Designed with flexibility in mind, the liquid-cooled induction heating cables can be wrapped into coils of various shapes and sized to fit almost any induction heating application.

View Specifications [PDF]

Rolling Inductor

Rolling Induction System

For heating rotating or moving applications up to 600° F (Preheating and various other heating applications)

This compact device delivers fast and consistent heat to any part that is moving.  Each rolling inductor can deliver up to 20KW of power and this power is focused to allow exceptionally fast and concentrated heat directly onto the moving part.

View Specifications [PDF]


Improved working environment is created during welding. Welders are not exposed to open flame, explosive gases and hot elements associated with fuel gas heating and resistance heating.

Easy set-up is achieved using flexible heating cables combined with user-friendly insulation blankets.

On-board temperature control provides for manual or temperature based programming in a simple-to-learn operator interface.

Uniform heating is maintained along and through the heat zone by using induction to heat within the material. The surface of the part is not marred by localized conducted heat at higher than specified temperatures.

Time-to-temperature is faster than conventional processes due to the method of applying heat, reducing cycle time

Learn more about the ProHeat 35

New Preheating Technology for Rolled Pipe in Fabrication Shops

The majority of pipe welds completed in fabrication shops are rolled, and it's easy to understand why. Rotating pipe while welding provides many benefits, including ease of achieving quality welds by eliminating out-of-position welding; reduced welding operator fatigue; and improved productivity from higher wire feed speeds and increased deposition rates.
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Miller's ProHeat™ 35 Induction Heating System Improves Preheat Time and Quality, Improves Productivity for Mechanical Contractor

Through induction heating Topp's Mechanical has found a solution that meets and exceeds the quality standards of its heat treatment applications while also providing strong operational benefits, including faster time-to-temperature, consistent heating throughout the entire part, easier to apply/wrap heat, greater reliability and lower consumable costs, more efficient use of labor, and improved...
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How To Control Hydrogen in Welding

From filler metal selection to proper preheat, learn some tips to help eliminate hydrogen-assisted cracking in welding.
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Welding Preheat Time Reduced in Lambeau Field Structural Steel Project

Induction heating delivers more consistent heating while improving productivity and safety in structural welding applications.
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When Preheating Before Welding, How to Choose the Right Equipment

Air-cooled cables, a new heating tool for induction, deliver flexibility and efficiency for welding preheat.
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Welding With Induction Heating Improves Consistency and Saves Time

Using an induction heating system for welding preheat and post-weld stress relief can save time and improve productivity.
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Preheat in Welding: What Is It and When Should You Use It?

Welding preheat is important in many applications. Learn about the benefits and drawbacks of four common welding preheat methods.
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Think Beyond Pipe Welding for Induction Heating

Induction isn’t limited to pipe welding applications. How much do you know about induction heating technology and its many benefits?
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Induction Heating is a Good Option for Minimizing Hydrogen in the Welding Process

Induction heating offers a consistent and reliable heating option that can save time and money in many applications. Jobs that typically require hours to heat can be heated in minutes by using induction heating.
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Maximize Productivity with Simple, Cost Effective Options of Miller ProHeat 35 Induction System

Miller’s ProHeat™ 35 Induction System offers flexibility to meet a wide range of heating requirements in welding applications.

Miller Preheating Technology for Roll-Welded Pipe Increases Quality, Productivity and Safety

Gaining consistency in preheating rolled pipe, or flat plate or seam welds, without the hassle and hazards of open flames, increases safety and efficiency.

Miller ProHeat Induction Heating - Liquid Cooled System

Learn about the ProHeat induction heating liquid cooled system.

The Lambeau Episodes 5: Induction Heating in Structural Steel Applications

Miron Construction used Miller induction heating throughout the Lambeau Field expansion project.

Topp's Mechanical: Induction Heating

Miller visits with Topp's Mechanical to discuss their use of Miller's induction heating technology in the ProHeat 35.

Miller Induction Heating - How it Works

This introduction to induction heating in welding applications will explain how it works and what it is.

Miller Induction Heating - The Equipment

Learn about Miller's options for induction heating equipment.

Miller Induction Heating Digital Recorder

Learn more about the induction heating digital recorder.

Miller Induction Heating Temperature Measurement Methods

Watch this video to learn the methods for temperature measurement that can be used with Induction Heating

Induction Heating Cuts Preheat Time, Provides Uniform Heating for Swartfager Welding, Inc.

Swartfager Welding has turned to induction heating with ProHeat 35 for many of its preheating, interpass temperature control and stress relieving applications.

Induction Heating Proves Easy to Use for Topp's Mechanical

Miller visits with Topp's Mechanical to discuss their use of Miller's induction heating technology found in the ProHeat 35.

Topp's Mechanical: Induction Heating and Welding P1 Headers

Miller visits with Topp's Mechanical to discuss their use of Miller's induction heating technology found in the ProHeat 35.