Industrial Rapid Thermal Annealing Furnace for Stress Relief Heat Treatment | Gas-Fired Bogie Hearth Solution
JIANGSU YINUO THERMAL ENERGY TECHNOLOGY CO., LTD delivers advanced Rapid Thermal Annealing Furnace systems engineered for large-scale industrial heat treatment applications. Our gas-fired bogie hearth design combines precise temperature control with flexible capacity configurations, featuring 350 mm refractory fiber lining and multi-zone heating capability. With operating temperatures adjustable from 550℃ to 950℃ and temperature uniformity within ±8℃, this product ensures consistent stress relief annealing results across heavy workloads. Backed by our 20,000㎡ manufacturing facility and 100+ engineering professionals, we provide customized thermal processing solutions that meet rigorous industrial standards.
Why Choose Our Rapid Thermal Annealing Solution?
The bogie hearth furnace we make is to solve the important production problems you meet every day. Uneven heating leads to material deformation and variable hardness – issues that directly effect your product quality and rejection rates.
The system is switchable pulse combustion design with high/low fire control. This gives you accurate heat distribution on your work parts. After 1 hour heat preservation, temperature deviation is within ±8℃ without hot areas to form stress concentrations.
Full control of heating rates adjustable from 50-200℃/h even with full loaded situations. Multi-zone temperature control setup can be customised to your individual heat treatment operations. Imported PID instruments with semi-automatic PLC control make repeatability batch after batch.
Energy efficiency means savings for your bottom-line. Multi-layer composite fibre lining saves 25-41% energy compared with traditional furnaces. At 950℃ working temperature, the temperature rise of furnace shell is still low, only 45℃ on the top and 40℃ on side walls.
Technical Specifications
| Parameter |
Specification |
| Furnace Type |
Gas-fired bogie hearth furnace |
| Furnace Chamber Dimension |
Customized per customer requirements |
| Loading Capacity |
Customized per customer requirements |
| Refractory Fiber Lining Thickness |
350 mm |
| Fuel Medium |
Natural gas |
| Fuel Calorific Value |
8500 Kcal/Nm³ |
| Working Temperature |
Standard 550℃, adjustable up to 950℃ |
| Temperature Uniformity |
±8℃ to ±1℃ (after 1 h preservation) |
| Temperature Control Precision |
≤±2℃ |
| Adjustable Heating Rate |
50–200℃/h (full loading) |
| Temperature Control Zones |
Configured per process requirements |
| Combustion System |
Switchable pulse or regenerative combustion |
| Control System |
Semi-auto PID + Omron PLC; manual mode available |
| Furnace Door Lifting Speed |
Approx. 6 m/min, electric hoist drive |
| Bogie Moving Speed |
5–7 m/min |
| Bogie Travel Stroke |
Fully movable outside furnace chamber |
| Bogie Drive Type |
Self-propelled chain drive |
| Loading Method |
Workpieces hoisted onto movable bogie surface |
| Exhaust System |
Top and side wall outlets; chimney ≥2 m above roof |
| Customization |
Available based on requirements |
Operating Advantages You Can Measure
Your production environment demands reliability and consistency. The Rapid Thermal Annealing Furnace from YINUO delivers both through intelligent design.
The movable bogie system provides exceptional loading flexibility. Your operators can fully extend the hearth outside the furnace chamber for safe, efficient workpiece placement. Chain-driven self-propulsion moves at 5–7 m/min, reducing cycle times.
Electric lifting doors run at 4–6 m/min. Wedge locking structures keep the seal tight. That holds the atmosphere in and stops heat from escaping while the unit runs.
We plan exhaust management on purpose. Outlets sit at the furnace top and on the side walls. The chimney rises at least 2 meters above your factory roof. Air moves out the way it should, and your workplace stays safe.
You get ±2℃ temperature control precision. That gives you the tight process windows that modern metallurgy needs. Alloy steel parts or specialty metals, either way this precision takes the guesswork out.
Typical Applications in Industrial Heat Treatment
Large fabrications and heavy components get stress relief annealing from this furnace. It does that job well. Uniform thermal processing helps welded structures, pressure vessels, and machined parts.
Post-weld heat treatment may be part of your operations. There, residual stresses need careful control. Controlled heating and cooling rates stop new stress from forming. At the same time, existing stress gets removed.
Oversized workpieces often won't fit in standard batch furnaces. The chamber dimensions can be customized to take them. Automotive chassis components are one example. Industrial machinery parts are another. The system scales to what you need.
Burning natural gas gives clean and steady heat. It does not bring the contamination risks that other fuels carry. A calorific value of 8500 Kcal/Nm³ keeps the energy supply dependable when thermal cycles are demanding.
Complete Engineering Support for Rapid Thermal Annealing Furnace From Design to Commissioning
YINUO does more than supply equipment. We also run project services from start to finish. Our mechanical engineers plan furnace layouts around the limits of your site. Automatic control specialists write heating profiles that match your exact heat treatment needs.
Quality inspection engineers check every assembly against national and industrial standards before it ships. Fixed assets of 80 million yuan keep our production capacity stable, so orders leave on time.
Installation teams take care of mechanical positioning. Electrical connections fall to them as well. They also handle combustion system commissioning. We run performance verification tests. These confirm that temperature uniformity and control precision meet specifications.
Project management works around your construction schedule. That keeps production disruption low. Your operators get training. Your maintenance personnel get Rapid Thermal Annealing Furnace training too. That means you can get the most from the furnace starting on day one.
FAQ
Q: Why is your temperature uniformity stronger than standard annealing furnaces?
A: Our multi-zone independent control system and 350 mm fiber lining work together to eliminate temperature gradients. The closed heat preservation structure prevents radial heat loss, while the combustion system distributes heat evenly across all zones.
Q: Can the furnace handle varying workpiece sizes in the same cycle?
A: Yes, the adjustable heating rate and multi-zone control allow compensation for different thermal masses. Your operators can program zone-specific temperatures to account for workpiece geometry variations.
Q: How does the bogie system maintain alignment during repeated cycles?
A: The self-propelled chain drive includes precision guide rails and positioning sensors. Mechanical wedge locking at the furnace entrance ensures the hearth seals properly against the chamber, maintaining alignment over thousands of cycles.
Q: What maintenance intervals should we expect?
A: Check the door seals and bogie mechanisms on a routine basis, every 500 operating hours. How often the refractory lining needs a look depends on your operating temperatures and how many cycles you run. Once a year is the usual starting point. The control system checks itself the whole time it runs.
Q: Is atmosphere control possible with this open-hearth design?
A: While this configuration operates in air atmosphere, controlled exhaust management maintains consistent internal conditions. For specialized protective atmospheres, we offer sealed retort configurations as a customization option.
Get Your Custom Thermal Solution
Ready to improve your heat treatment consistency and reduce energy costs with a Rapid Thermal Annealing Furnace? Reach us at info@yinuofurnaces.com to start your custom furnace project today.
