ProHeat Induction Heating System | MillerWelds
ProHeat™ Induction Heating —
1 System - 4 Basic Induction Heating Configurations

Liquid-Cooled Cables

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

Liquid Cooled Cables

Rolling inductor system

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

Rolling Inductor System

Air-Cooled system

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

Air Cooled System

Air-Cooled Cables

Specifically designed for preheating applications up to 400 degrees Fahrenheit (204°C).

Powering a Heating Revolution


ProHeat™ 35 Induction Heat Systems Solve Ongoing Preheating 
& Stress Relieving Problems

This simple and cost-effective heating process can deliver fast and consistent heat for:
  • Welding fabrication and construction;
  • Preheating of welds;
  • Post-weld heat treatment;
  • Coating removal; and
  • Shrink fit applications
Applications that would typically require hours to heat can be done in minutes utilizing induction heating.

In addition to the simplicity and efficiency, the ProHeat 35 induction heating system solves many key issues in today’s environment:
  • Does not produce the exposure to burns associated with open flames and electrical resistance wires (only the work part becomes hot)
  • No significant expense of fuel gases.
  • Produces fewer fumes than flame heating.
  • Produces less particulate from overheated insulation caused by high temperature electrical wires and ceramic pads.

Articles and Videos

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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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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

Welding preheat equipment such as air-cooled cables and a new heating tool for induction, deliver flexibility and efficiency.
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Easily Achieve Targeted Preheat Temperatures on Moving Parts using Induction Heating from Miller

The Miller ProHeat™ rolling inductor heating system is a simple and cost-effective heating process.

Miller ProHeat Induction Heating - Liquid Cooled System

Learn about the ProHeat induction heating liquid cooled system.

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.

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 - 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 Where It Works

Miller Induction Heating Where It Works

ProHeat™ Rolling Inductor Provides Safer Alternative to Preheating Rolled Pipe

Preheating is critical to achieve high weld quality; it eliminates moisture and reduces the opportunity for hydrogen cracking.

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.