U-Type Tunnel Furnace
Category：Tunnel Oven Production Line
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Introduction
The U-Type Tunnel Furnace is an efficient continuous industrial baking and heating equipment. It adopts a unique U-shaped return tunnel structure, allowing materials to travel through the furnace in a circulating path. This design significantly extends the heating path within a limited floor space, achieving efficient space utilization and precise energy control.
Applications
Food Processing: Continuous baking of large quantities of food products such as bread, biscuits, and pastries.
Electronic Industry: Curing and drying of printed circuit boards (PCB) and electronic components.
Metal Coating: Drying and curing of surface coatings and paint on metal parts and plastic components.
Chemical Materials: Heating, vulcanization, and dehydration treatment of various new materials and rubber products.
Product Parameters
| Item | Technical Specification |
|---|---|
| Overall Dimensions (mm) | Length 6500 × Width 810 × Height 1300 |
| Outer Shell Material | Made of 2mm thick cold-rolled steel plate, formed by bending and welding. The material provides excellent comprehensive performance in strength, plasticity, and weldability. |
| Inner Chamber Material | Made of 1.5mm thick stainless steel plate, keeping the chamber clean, rust-resistant, and corrosion-resistant. |
| Temperature Range | Room temperature +10℃ ~ 100℃ (adjustable) |
| Thermal Insulation | Uses 100K high-density aluminum silicate wool insulation, featuring non-combustibility and excellent heat insulation performance. Insulation thickness: 100mm. The bottom is also equipped with a thermal insulation layer. |
| Total Power | 35 kW |
| Power Supply | 380V, three-phase five-wire system |
| Heating Method | Electric heating |
| Control System | Temperature control adopts a microcomputer intelligent digital temperature controller with functions including RS485 communication, PID auto-tuning, automatic constant temperature control, timer setting, automatic alarm and power-off after reaching the set time, over-temperature power-off protection, temperature monitoring, leakage protection circuit breaker, etc. Equipped with alarm function and three-color indicator light warning. The touch screen is equipped with ultra-high temperature alarm; when an alarm occurs, a rotary warning light provides audible and visual alerts. |
| Electrical Components | Other electrical components are controlled by Omron or Schneider electrical products. |
Features
Space Saving Design: The U-shaped return structure reduces required factory length by nearly 50% compared with traditional straight tunnel furnaces.
Single-Person Operation: The loading and unloading openings are located on the same side, allowing one operator to complete feeding and collection.
High Efficiency and Low Energy Consumption: The special internal heat circulation system minimizes heat loss and significantly improves energy efficiency.
Precise Temperature Control: Equipped with PID intelligent microcomputer temperature control and multiple independent heating zones, ensuring minimal temperature variation inside the furnace.
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