Roller Conveyor Tunnel Oven

To achieve temperature uniformity within an internal oven with an effective height of 700 millimeters, a complex airflow design is required. You can customize the Roller Conveyor Tunnel Oven at Dingfeng, which adopts a high-flow horizontal cross-flow system. It is driven by 1500-watt independent motors with 12-inch multi-blade impellers. Hot air is forced through specially designed stainless steel perforated plates from both sides, then converges on the product surface, and returns through the top exhaust port, ensuring that the temperature uniformity within the entire 15.6-meter-long oven operates stably within the range of ±5-8°C.

Heating process

The Industrial Roller Conveyor Tunnel Oven operates through safety protection functions such as automatic temperature control, precise temperature stabilization, and automatic shutdown upon exceeding the temperature limit. The interior of the oven is uniformly constructed with mirror-finish stainless steel plates, and the insulation layer is filled with 120K silicagel aluminum insulation rock wool to achieve the desired heat insulation effect. The external frame is made of iron profiles welded together, while the outer panel of the oven is formed by laser cutting and then hydroforming on cold-rolled steel plates. The stainless steel heating tubes are used for heating, and in combination with a low-noise centrifugal exhaust fan, an efficient hot air circulation system is formed, allowing the heat to evenly spread to the surface of the products.

Our configuration certification

Dingfeng's Roller Conveyor Oven is equipped with an advanced PLC and a 10.2-inch touch screen interface, a control system that complies with the standards of Industry 4.0. Operators can easily view real-time temperature, motor frequency and output current. Most importantly, the built-in data recording function can store thermal curves for up to 90 days. Whether you are optimizing production cycles or providing process evidence for customer audits, the adjustable storage frequency ensures that each batch of your 2-meter-per-minute production line has professional data support.

Main technical parameters

Overall description of tunnel furnace equipment

Operational Workflow

The Dingfeng Roller Belt Oven is equipped with an advanced semi-automatic pneumatic positioning system. The operator manually aligns a 1200x1200 mm pallet against the pneumatic stops at the infeed station to initiate the conveyor belt. Subsequently, pneumatic baffles synchronize with high-torque rollers to transport the pallets in a step-wise fashion, advancing them in 1550 mm increments; following each movement, the stops automatically reset to receive the next unit. Once the oven reaches its full internal capacity of nine pallets, an automatic lift-gate seals the chamber, and a XINJE PLC activates the high-power hot air circulation system. The system alerts the operator via integrated audio-visual alarms. The unloading process mirrors the loading logic, utilizing the high-precision pneumatic stepping mechanism to safely and orderly convey the pallets to the staging area.

Frequently Asked Questions (FAQ) – Roller Conveyor Tunnel Oven

Q1: How can we ensure that the ￠76 mm roller will not deform at a temperature of 200°C?

Answer: The roller has an enhanced bearing inside, and the roller diameter is 210 mm. These materials have undergone heat stabilization treatment to ensure that even under the full-load condition of a 1200×1200 mm workpiece, the roller can maintain perfect concentricity and smooth rotation, and will not deform or get stuck in an all-weather heating environment.

Q2: Can it adapt to different product heights?

Answer: Yes. The effective internal height is 700 mm, which is very suitable for large-sized hardware products. The uniformity of ±5-8°C is maintained.

Q3: How does the exhaust system handle the exhaust gas produced by spraying or dehydration?

Answer: We installed a 750-watt high-temperature forced exhaust fan at the intake, and set adjustable new air vents in each heating area. This ensures the rapid discharge of moisture and VOCs, preventing gas accumulation, and providing a fresh and oxidatively stable environment for your coating.