The Foster Induction Bolt Heating Machine is a cutting-edge solution designed specifically for rapid, accurate, and safe heating of large bolts, studs, and fasteners commonly used in heavy industries such as power plants, oil and gas refineries, mining, shipyards, and petrochemical plants. Utilizing induction technology, this machine applies localized heat directly to the bolt through a specially designed coil inserted into the bolt. This process expands the bolt by a precise, predetermined length, facilitating easy loosening or tightening of nuts without damaging surrounding components. The flameless induction method eliminates risks associated with traditional flame or resistance heating, ensuring safety and operational efficiency. Compact and portable, the Foster machine offers flexible coil options to accommodate various bolt sizes, while digital temperature control guarantees precise and repeatable heating cycles. Its water-cooled design supports continuous operation, making it ideal for frequent maintenance tasks where speed and reliability are critical. By replacing traditional heating techniques, this induction machine reduces downtime, cuts operational costs, and promotes an eco-friendly working environment free from open flames, gases, and excess radiant heat.
Key Features
| Features | Description |
|---|---|
| Heating Method | Induction-based localized flameless heating |
| Heat-Up Time | 10–90 seconds depending on bolt size |
| Power Rating | 5 kW to 50 kW |
| Voltage | 3 Phase, 415V, 50/60 Hz |
| Cooling System | Water cooled |
| Temperature Control | Digital temperature control for precise heating |
| Portability | Compact and movable within workshop or factory floor |
| Safety | No open flame, no risk of bolt or rod melting, suitable for explosive zones |
| Coil Flexibility | Interchangeable induction coils to fit various bolt dimensions |
| Application Areas | Power plants, oil & gas, mining, shipyards, petrochemical plants, heavy-duty equipment servicing |
| Attributes | Description |
|---|---|
| Brand | FOSTER |
| Power Consumption Range | 5 kW to 50 kW |
| Input Voltage | 415V, 3 Phase, 50/60 Hz |
| Heating Time Range | 10 to 90 seconds depending on bolt size and dimension |
| Cooling Method | Water cooled |
| Coil Compatibility | Supports various coils tailored for different bolt sizes and shapes |
| Operation Environment | Safe for explosive and industrial hazardous environments |
| Heating Precision | Induction heating localized exclusively to the bolt, threads remain cool |
| Mobility | Compact and portable unit |
| Control System | Digital with repeatable and programmable heating cycles |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
The machine uses a specially designed induction coil inserted directly into the turbine bolt, which generates rapid, localized heating exclusively within the bolt material. This ensures the threads and nuts remain cool as the heat does not radiate beyond the targeted bolt area.
Yes, the induction coils are interchangeable and can be replaced within seconds to accommodate various bolt sizes and shapes, adding maximum flexibility for different maintenance scenarios.
The machine is flameless, eliminating open flames and combustible gases, which greatly reduces fire risk. Additionally, it prevents overheating and melting of rods inside bolts, making it safe for use even in explosive industrial zones.
Heating times range from 10 to 90 seconds depending on the bolt size, allowing for rapid and efficient maintenance operations without significant downtime.
Yes, the machine features a water-cooled system and robust digital controls to ensure high performance and reliability during frequent and prolonged maintenance cycles.
Country Of Origin: India
What is bolt heating machine?
Expanding bolts with induction is the proven time- and labour-saving alternative to inefficient flame and resistance heating. With induction, a specially designed coil is inserted into the turbine bolt. Rapid, precisely controlled and localized heat is then induced directly in the bolt. The heat expands the bolt by an exact, pre-decided length, making it easy to remove the nut.
What are the benefits
Foster Induction heat spreading is very accurate, due to the heat being generated within the component, you only heat the part you want to heat, and thus the bolt threads with nuts stay cold during the heating operation.
The heating process is very fast and accurate there simply isn't enough time for heat to travel into the thread area. And with induction there is no risk of rods melting inside the bolts.
In the bolt expansion process, focus on safety is vital for a consistent result and for avoiding damage to either personnel or the expansion bolt itself. It is very safe and easy method to heat power turbine nut bolt.
Its precise and localized heat is faster and safer than resistance and flame heating process.
FOSTER offers high-performance Induction Bolt Heating Machines designed for quick, safe, and efficient heating of large bolts, studs, and fasteners. Ideal for applications where conventional heating (torch/flame) is slow or risky, our machines use precision induction technology to deliver localized heat in seconds — enabling easy loosening or tightening of critical bolts.
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