Industrial Electric Customized Finned Tubular Air Heater for Food Dehydrator
Performance characteristics
1. Extremely high thermal efficiency: The fins greatly increase the heat dissipation area, allowing heat to be quickly and fully carried away by the air, resulting in lower energy consumption and faster heating speed.
2. Uniform heating: The generated hot air flow is more stable and uniform, avoiding local overheating or insufficient heating, and ensuring the consistency of food dehydration quality.
3. High mechanical strength: The metal tube and fin structure is robust, resistant to vibration and shock, and has a long service life, making it particularly suitable for industrial-grade continuous production environments.
4. Safety and reliability: The heating wire is completely sealed inside a metal tube, isolated from air, thus avoiding the risks of oxidation and short circuits, and also preventing contact with possible dust and oil stains inside the equipment that could cause fires.
5. The power can be made very large: By increasing the number of tubes, length and fin density, it is easy to achieve heating power of several kilowatts or even tens of kilowatts, meeting the demands of large-scale dewatering machines.
6. Precise temperature control: When used in conjunction with temperature controllers (such as PID controllers) and solid-state relays (SSR), it can achieve extremely precise temperature control, which is crucial for the optimal drying temperature of different ingredients.
Technical Date Sheet:
Item | Finned Tubular Air Heater for Food Dehydrator |
tube diameter | 8mm~30mm or customized |
Heating Wire Material | FeCrAl/NiCr |
Voltage | 12V - 660V, can be customized |
Power | 20W - 9000W, can be customized |
Tubular material | Stainless steel /Incoloy 800 |
Fin Material | Stainless steel 201/304 |
Heat efficiency | 99% |
Application | Air heater, oven, dehydrator, air duct heater and other industry heating process |
Product details
1. Stainless steel 304 heating tube, temperature resistance of 300-700C, stainless steel material can be selected according to the operating environment temperature, heating medium, etc;
2. Imported magnesium oxide powder is selected, which has the characteristics of high temperature resistance and good insulation performance, making it more reliable to use;
3. High quality electric heating wire is used, which has the characteristics of uniform heat dissipation, high temperature and oxidation resistance, and good elongation performance;
4. Factory direct supply, stable supply, complete specifications, diverse types, and support for non-standard customization;

Working Principle
Finned tubular heaters increase the outer or inner surface area of the heat exchange tube by adding fins to the surface of the heat exchange tube, thereby improving the heat exchange efficiency. This design not only improves the heat transfer efficiency, but also increases the heat dissipation area. Finned tubes are easy to install, reduce the number of connection points, reduce the chance of water leakage, are easy to maintain, and have a long service life.

Product use instructions
★Do not in outdoor environments with high humidity.
★When the dry burning electric heating tube heats the air, the components should be arranged evenly and crisscrossed to ensure that components have good heat dissipation conditions and that the air passing through can be fully heated.
★The default material for stock items is stainless steel 201, the recommended operating temperature is <250°C. Other temperatures and materials can be customized, with stainless steel 304 selected for temperatures below 00°C and stainless steel 310S selected for temperatures below 800°C.
Application fields
Heating and cooling equipment: It is widely used in equipment such as hot air furnaces, radiators, and air conditioners. Inators and air conditioners, it can quickly dissipate the heat inside the equipment, ensuring the normal operation of the equipment.
Industrial field: It is also widely used petrochemical, electric power, metallurgical and other fields, such as heat recovery of economizer, air preheater and waste heat boiler.
Drying and ventilation system: SRQ finned tube radiator is composed of steel porous plate frame and steel finned tube radiator, which is widely used in air heating of drying system and heating ventilation exchange system of large and medium sized.
Customer use case


Order Guidance
The key questions which need to be answered before selecting a Finned heater are:
1. What Type do you need?
2. What wattage and voltage will be used?
3. What is the diameter and heated length required?
4. What material do you need?
5. What is maximum temperature and how long required to reach your temperature?
Certificate and qualification


Product packaging and transportation
Equipment packaging
1) Packing in imported wooden cases
2) The tray can be customized according to customer needs

Transport of goods
1) Express (sample order) or sea (bulk order)
2) Global shipping services
