An industrial induction heater uses electromagnetic induction to heat conductive metals — without any direct flame or contact. It's used across industries for:

• Bearing mounting — expanding bearings for damage-free press fits
• Shrink fitting — heating metal components for precision assembly
• Post-weld heat treatment (PWHT) — stress relief after welding
• Pipe and flange preheating — before and after welding operations
• Bolt and fastener heating — for expansion and easy removal

Unlike traditional methods (oil baths, open flames), induction heating is faster, cleaner, and fully controllable — making it the preferred choice in manufacturing, oil & gas, power plants, and heavy engineering.

A bearing induction heater is a specialized industrial device designed to heat bearings uniformly before installation on a shaft. Instead of hammering or pressing bearings into place — which causes raceway damage and premature failure — the heater expands the bearing's inner ring through controlled electromagnetic heat.

How it works:

1. The bearing is placed on the heater's yoke or spindle
2. An alternating magnetic field induces eddy currents in the metal
3. The bearing heats evenly to the required temperature (typically 80°C–120°C)
4. It's then slip-fitted onto the shaft, contracts on cooling, and locks in place

The result: zero damage to the bearing, reduced installation time, and longer service life.

The right power rating depends on the size and weight of the workpiece you're heating:

As a general rule: larger bore diameter + heavier component = higher kW needed for faster, uniform heating. If you're unsure, our team will help you select the right model based on your application. Contact us here.

Yes. Vivid Metrawatt induction heaters come with automatic temperature control that monitors and cuts off heating once the target temperature is reached. This prevents:

• Overheating of bearings (which alters metallurgical properties)
• Operator error during manual monitoring
• Risk of exceeding the tempering temperature of hardened components

The built-in control system ensures consistent, repeatable results — critical in high-precision industrial environments.

Yes — induction heating is significantly safer than traditional heating methods like oil baths or open torches. Key safety advantages include:

• No open flame — eliminates fire and burn risk
• No hot oil — no spillage, no fumes, no disposal issues
• Automatic demagnetization — removes residual magnetism from components after heating, which is critical for bearing performance
• Thermal cutoff — shuts down automatically at set temperature
• Cool exterior casing — only the workpiece heats up, not the machine

Operators should still follow standard PPE guidelines (heat-resistant gloves, safety glasses) during component handling.

Yes. Beyond bearing mounting, Vivid Metrawatt induction heaters are widely used for:

• Bolt heating — thermally expanding bolts for precise tensioning in flanged joints (common in pressure vessels, wind turbines, and heavy equipment)
• Flange preheating — bringing flanges to the required preheat temperature before welding, per ASME or AWS standards
• Pipe end heating — for preheating before field welding on pipelines

With the right accessories and yoke configurations, the same unit handles multiple heating applications — making it a versatile tool across your maintenance and fabrication workflows.

Our induction heaters are trusted across 500+ industries globally, including:

• Steel & Metals — for roll changing, gear and coupling installation
• Oil & Gas — pipeline preheating, valve and flange maintenance
• Power Generation — turbine bearing maintenance, generator overhauls
• Cement & Mining — heavy bearing and pulley installations
• Automotive & Manufacturing — precision shrink fitting in assembly lines
• Railways — wheel and axle bearing maintenance
• Wind Energy — main shaft bearing installation and replacement

If your industry involves heavy rotating equipment or precision metal assembly, induction heating has a direct application.

Yes. While our 22kW, 33kW, and 44kW standard models cover the majority of industrial applications, we work with clients who have non-standard requirements — including:

• Specialized yoke and coil configurations
• Custom temperature ranges or duty cycles
• Integration into production line setups
• Multi-unit procurement for large plants

Get in touch with our team to discuss your specific heating application. We'll recommend the right solution — or engineer one if needed.