Continuous Roller Hearth Furnace

Continuous Roller Hearth Furnace for Industrial Heat Treatment - High-Precision Temperature Control & Energy-Efficient Production Solution

JIANGSU YINUO THERMAL ENERGY TECHNOLOGY CO., LTD builds advanced Continuous Roller Hearth Furnace systems. High-volume thermal processing is what they are made for. Gas-fired units come with chamber sizes you can set and a 350 mm refractory fiber lining. Working temperatures sit between 550℃ and 950℃. Temperature uniformity deviation holds at ≤±8℃, and control precision stays at ≤±2℃. Metallurgical results come out the same from batch to batch. Automotive plants run these furnaces. So do aerospace suppliers and specialty steel makers. Behind all of it sits a 20,000㎡ production facility. Fixed assets reach 80 million yuan, and more than 100 specialized engineers work on the team. Engineering support covers the whole job, from design through commissioning.

What Makes Our Roller Hearth Heating System Stand Out?

Your line needs to keep running. It also needs to hold its accuracy. Motors drive heat-resistant rollers on our roller hearth furnaces. Those rollers carry workpieces through heating zones kept under tight control, and the sequence runs on its own. Manual handling goes away. Labor costs fall. Thermal treatment stays the same in every batch.

A multi-zone PID temperature control system runs each zone on its own, and that keeps uniformity high. Standard batch furnaces fight hot spots and temperature swings. Ours holds deviation inside tight limits. Defects that ruin product quality get stopped early. Uneven hardness is one of them. Warping is another. Surface oxidation too.

The design already accounts for energy efficiency. Surface heat loss drops a lot thanks to the multi-layer composite lightweight fiber lining, 350 mm thick. Add the closed heat preservation structure and energy use falls by 25%–46% next to conventional heating furnaces.

Technical Specifications

Industrial Applications for Maximum Productivity

Automotive powertrain manufacturing relies on our Continuous Roller Hearth Furnace for continuous bright annealing and hardening of camshafts and transmission gears. Surface finish and dimensional stability remain consistent throughout high-volume production runs.

In the renewable energy industry, battery material manufacturers use these devices for sintering of lithium-ion cathode material. You're so precise and you're in a controlled oxygen environment so every day you're making thousands of battery components that have the exact same material properties.

Continuous normalising and stress-relieving for speciality steel tubing. These capabilities serve the construction and oil & gas sectors. Dust levels can be high in industrial settings. Even then, long-form steel tubes over 20 meters in length come out with a homogeneous grain structure.

Precision Temperature Control Technology for Continuous Roller Hearth Furnace

The multi-zone PID control design enables independent temperature regulation in each heating zone. The individual zones are adjusted dynamically to thermal loads to compensate for differences due to work piece mass or throughput fluctuations.

Two ways to run it: semi-automatically with imported PID intelligent instruments, or fully automatically with Omron PLC systems. For specialised processing needs or maintenance tasks, manual mode stays available.

Heat levels in the Continuous Roller Hearth Furnace get watched the whole time the cycle runs. Fuel flow and combustion strength are trimmed by the system on its own. Setpoints then stay inside +/-2C. So the load never overheats and never comes out under-processed, which would waste material and energy.

FAQ

Q: What stops roller marks from showing up on high-finish workpieces?

A: Drive synchronization runs on frequency-controlled units. We also fit ceramic roller sleeves or high-polish finishes. Both cut friction and keep contact marking down.

Q: What stops the rollers from warping when the power goes out?

A: A backup drive comes with our systems. It can be a UPS or a manual unit. Either way, the rollers keep turning until the furnace drops under the temperature where deformation starts.

Q: Can one line run with more than one atmosphere requirement?

A: Yes. We use high-velocity nitrogen curtains and physical baffles. They let us hold distinct atmospheric zones for different process needs.

Q: How often should someone service the rollers?

A: It depends on load and temperature. A bi-annual inspection is recommended. Look for creep and surface degradation. That fits with preventive maintenance schedules.

Q: Can this be hooked into a fully automated Industry 4.0 factory?

A: Yes, it can. The units we build come with PLC integration and SCADA systems. That means data gets logged in real time and faults can be checked remotely. Linking up to MES systems is no problem either.

Ready to Upgrade Your Heat Treatment Process?

Tell our engineering team what your production needs are. Write to info@yinuofurnaces.com to talk about a Continuous Roller Hearth Furnace. You will get a furnace solution built around your line.