



Product Name: Three-Layer Tunnel Oven for Food and Health Products
Drying Section Inner Chamber Dimensions
Single Layer: Length 8000mm × Height 120mm × Maximum Width 1000mm
Overall Dimensions
Length 9000mm × Height 1630mm × Width 1500mm
Height from Ground to Upper Surface of Feeding Belt: 850mm (±20mm Adjustable)
Total Drying Section Length: 8000mm, Divided into 4 Temperature Zones
Feeding Section Length: 700mm
Discharging Section Length: 300mm
Temperature Parameters
Temperature Range: Ambient ~ 200°C (Common Use: 150°C)
Instrument Display Accuracy: ±0.1°C (Adjustable)
Temperature Fluctuation: ≤±2°C
Temperature Uniformity: ≤±2°C (No-Load)
Heating Rate: ≥7°C/min
Shell Temperature Rise: ≤ Ambient +15°C; Around Joints: ≤ Ambient +30°C
Air Circulation Mode
Horizontal Circulating Air
Power Supply
Three-Phase Five-Wire System, 380V, 50HZ
Total Power: Approximately 55KW
Product Features of Three-Layer Tunnel Oven for Food and Health Products
Intelligent Temperature Control
Automatically calculates output power via PTD (Power Time Differential) based on user-set temperature values. Output power decreases as the set temperature is approached, achieving constant temperature control and energy savings.
Over-Temperature Alarm
Automatically cuts off heating power when the detected temperature exceeds the set value, providing dual protection.
Acoustic-Optic Alarm
Equipped with an alarm light and buzzer for fault notifications.
Grounding Protection
Structural components with safety grounding to ensure operational safety.
Phase Loss/Phase Sequence Protection
Installed with a phase sequence protector to prevent damage from power supply anomalies.
Environmental Conditions
Ambient Temperature: -5°C ~ +40°C
Relative Humidity: ≤85%RH
Power Supply: AC380V±10%, 50HZ, Three-Phase Five-Wire System
Product Materials
Furnace Structure and Shell
Shell Material: 1.5mm thick Q235 cold-rolled steel plate (excellent strength, plasticity, and weldability) formed by bending and welding.
Surface Treatment:
Grinding, polishing, and phosphating to enhance corrosion resistance and paint adhesion.
High-temperature spray coating (large corrugated type) for rust and corrosion prevention, color: 'C7035' (RAL 7035 gray).
Inner Chamber
Material: 1.5mm thick SUS304# stainless steel plate, ensuring a clean, dust-free interior with rust and corrosion resistance.
Protection Devices
Timed Alarm and Power-Off Device
Over-Temperature Power-Off Protection
Leakage Protection Circuit Breaker
Motor Overload Protection
Application Scope
Suitable for heating, dehumidification, ripening, puffing, and other processes in the food industry and health product industry.

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