Trymax Furnaces is one of the leading furnace manufacturers in India. We design and export reheating furnaces, forging furnaces, heat treatment furnaces, and electric furnaces. Each unit is custom-built to match your production needs.
Our furnaces deliver optimized fuel efficiency, making them the preferred choice for rolling mills.
What are industrial furnaces?
In steelmaking, industrial furnaces like those produced by Trymax are engineered for critical processes such as reheating, forging, and heat treatment at various stages of steel production. These high-temperature units are indispensable for melting raw materials (iron ore, scrap, and additives), refining them into steel, and preparing them for further processing through precise heating and cooling cycles.
Steel rolling mills depend on furnaces to reheat semi-finished steel such as billets, blooms, and slabs. Once reheated, these materials undergo annealing, hardening, normalizing, and tempering. These processes improve strength and flexibility, making steel durable for long-term use.
In this guide, we explain the different types of industrial furnaces and their applications in hot steel rolling mills.
Types of Industrial Furnaces in Steel Rolling Mills
1. Reheating Furnaces
Reheating furnaces soften semi-finished steel products until they can be rolled into rods, bars, or sheets.
Pusher-Type Billet Reheating Furnace
Billets—rectangular or square steel pieces—are pushed into the furnace using a hydraulic pusher. The furnace contains multiple heating zones to control temperature. Once heated, billets exit through a discharge ejector for continuous operation.
Walking Beam Reheating Furnace
Instead of pushing, this furnace lifts and shifts billets or slabs forward step by step. Two sets of beams handle the lifting and holding. This method ensures uniform heating. It is ideal for reheating steel for construction equipment and machinery.
Top and Bottom Fired Reheating Furnace
This furnace uses burners above and below the billets, heating both sides evenly. The design maximizes surface area exposure, ensuring faster and consistent heating.
Why Choose Trymax Reheating Furnaces?
- Heating capacity: 1 to 120 TPH for small and large production.
- Fuel options: oil, gas, or coal.
- Energy-efficient design reduces operating costs.
- Multi-zone heating ensures precise temperature control.
2. Heat Treatment Furnaces
Heat treatment furnaces expose steel to high temperatures followed by controlled cooling. This process eliminates internal stresses, enhances uniformity, and strengthens steel.
Bogie Hearth Furnace
Large steel parts are loaded on a moving bogie platform. This furnace handles annealing, tempering, normalizing, and stress relieving.
- Operates manually, semi-automatically, or fully automatically.
- Built with durable aluminum and stainless steel.
- Works efficiently at 220V, saving energy.
Roller Hearth Furnace
Steel parts move continuously on rollers through the furnace. This setup ensures uniform heating and uninterrupted operation.
- Used mainly for hardening processes.
- Runs on electricity up to 440V.
Walking Beam Heat Treatment Furnace
Large steel pieces move forward on walking beams. The slow, step-by-step motion allows even heating.
- Ideal for tempering and hardening tubes and springs.
- Capacity: 5,000 kg billets up to 12m length.
- Power: 220V and 5.6 kW.
Continuous Line Furnace
Steel strips or wires pass through different heating zones in a straight line.
- Suitable for hardening, tempering, and annealing.
- Fully automatic with a 3,000–4,000 kg build.
- Made with strong stainless steel and aluminum.
Salt Bath Furnace
Steel parts are dipped into molten salt for fast, even heating. Afterward, they are quenched in water or oil.
- Used for quenching and bluing carbon steel strips.
- Weight: 1,500–2,000 kg.
- Fully automatic and electrically powered.
Chamber Furnace
A box-shaped furnace with front access. Steel parts are placed on trays or shelves inside.
- Used for curing, hardening, and tempering.
- Provides uniform heating in a closed chamber.
Why Choose Trymax Heat Treatment Furnaces?
- Custom designs for all heat treatment processes.
- Built with stainless steel and aluminum for durability.
- Precise temperature control ensures accuracy.
- Fully automatic models improve fuel and power efficiency.
3. Soaking Pit Furnaces
Soaking pits heat large steel ingots evenly before rolling or forging. Without even heating, the outer layer overheats while the core stays cold, causing cracks.
Trymax soaking pit furnaces provide:
- Custom-built options to match factory needs.
- Multiple fuel choices: gas or oil.
- Recuperators that trap heat, reduce waste, and improve fuel efficiency.
Conclusion
Each furnace—reheating, heat treatment, or soaking pit—plays a vital role in creating stronger, more durable steel.
Since 2012, Trymax Furnaces has specialized in custom-engineered heating systems with optimized fuel use, uniform heating, and low maintenance.
Whether you need a high-tonnage reheating line or a precision salt bath unit, Trymax helps you achieve efficient steel processing while lowering energy costs.
Partner with Trymax Furnaces to meet your unique production, budget, and sustainability goals—and run your steel mill hotter, cleaner, and smarter.