Onsite FLS Case: Precision Bearing Fitting For Cast Iron Housing With WTR Induction Heater
Apr 22, 2026
Leave a message
How 25kW Induction Heating Machines Achieves 120°C in 5 Minutes Without Open Flames
In the heavy machinery sector-specifically for global leaders like FLS (FLSmidth),which is Global leader in cement and mining tech, headquartered in Denmark. The assembly of interference-fit components requires both speed and absolute thermal precision. Traditional heating methods often fall short when dealing with massive cast iron housings used in cement and mining equipment.
Our latest field application demonstrates how WTR medium frequency induction heating technology solves the logistical and technical bottlenecks of large-scale bearing installation.
The Challenge: Uniform Expansion of Massive Cast Iron Bores
The FLS client required a reliable method to heat internal bores in heavy-duty cast iron housings to facilitate seamless bearing insertion.The task involved three specific workpiece ranges:
1. Small Bores
2. Medium Bores
3. Large Bores
The core challenge with cast iron is its thermal mass; heating it too slowly wastes energy, while uneven heating can cause structural stress or misalignment during the "drop-in" phase.
Solution : WTR-MF25-BE Medium Frequency Air-Cooled Induction Heater
We deployed our 25kW Mid-Frequency Air-Cooled Induction Heater, equipped with a series of customized Internal Plug-in Inductors.Unlike water-cooled units, this air-cooled system offers maximum mobility on the shop floor, eliminating the need for complex plumbing or external chillers.
Key Performance Data:
1. Target Temperature: 120℃ (Optimal for thermal expansion without altering metallurgy).
2. Heating Time: Approximately 5 minutes.
3. Process: Direct internal induction focused on the bore wall.
Why Industry Leaders Choose WTR Induction Heating Solutions
This project highlights our ability to provide customized tooling for specific industrial dimensions. By matching the inductor size to the specific workpiece, we ensure a perfect electromagnetic coupling.
Application Advantages
1. Repeatability: Achieving a consistent 120℃ every cycle ensures that quality control is independent of the operator's skill level.
2. Safety: No open flames or hazardous oil baths, creating a cleaner and safer workspace.
3. Efficiency: Reducing a potentially hour-long heating process to just 5 minutes significantly slashes downtime.
Serving the Global Cement and Mining Sector
From wind power components to heavy-duty mining gear, our partnership with giants like FLS proves that our induction technology meets the most rigorous international standards. We don't just sell heaters; we engineer assembly solutions that guarantee precision.
Looking to optimize your bearing installation solution?
Contact our team at amy@wtr-bearing.com to discuss custom induction tooling for your specific industrial application.
Solution : WTR-MF25-BE Medium Frequency Air-Cooled Induction Heater We deployed our 25kW Mid-Frequency Air-Cooled Induction Heater, equipped with a series of customized Internal Plug-in Inductors.Unlike water-cooled units, this air-cooled system offers maximum mobility on the shop floor, eliminating the need for complex plumbing or external chillers. Key Performance Data: 1. Target Temperature: 120℃ (Optimal for thermal expansion without altering metallurgy). 2. Heating Time: Approximately 5 minutes. 3. Process: Direct internal induction focused on the bore wall.
Why Industry Leaders Choose WTR Induction Heating Solutions This project highlights our ability to provide customized tooling for specific industrial dimensions. By matching the inductor size to the specific workpiece, we ensure a perfect electromagnetic coupling.
Application Advantages 1. Repeatability: Achieving a consistent 120℃ every cycle ensures that quality control is independent of the operator's skill level. 2. Safety: No open flames or hazardous oil baths, creating a cleaner and safer workspace. 3. Efficiency: Reducing a potentially hour-long heating process to just 5 minutes significantly slashes downtime. Serving the Global Cement and Mining Sector From wind power components to heavy-duty mining gear, our partnership with giants like FLS proves that our induction technology meets the most rigorous international standards. We don't just sell heaters; we engineer assembly solutions that guarantee precision.
Looking to optimize your bearing installation solution? Contact our team at amy@wtr-bearing.com to discuss custom induction tooling for your specific industrial application.