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Finned Tubular Heaters

Finned tubular heating element belongs to Air Heaters, which is often used in air heating equipment such as oven, ducts, autoclaves and so on.
The purpose of adding iron or stainless steel sheet to the original heating element is to increase the heat dissipation area of the heating element, speed up the heat dissipation speed in the air, so as to ensure the service life of the heating element.
This is the advantage of the finned tubular heating element.
Its heat dissipation area is 2 to 3 times larger than that of ordinary components.

Thermoer™ choose the most reasonable and reliable heating material for you according to the working temperature used. Whether it is a straight line, U, W, or a square, we can produce it. Of course, the customer can deliver the drawings to us. PDF

Highly recommended products from other Air series:

Ceramic Heater | Oven Heater | Tubular Heater 

Category:

Description

Design and Customization

  1. Voltage, Power
  2. Tubular diameter, usually diameter: 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm
  3. Selection of fin types: square fins (25*50mm or 40*80mm) or wound fins (usually wrapped with 6mm, 10mm steel strips)
  4. Does the double head have fasteners, if the fasteners are used, how big is the size?
  5. appearance material selection: the main materials are SUS304, SUS321, SUS316L, SUS310S (common name: 2520), titanium tube and so on.
  6. Fin material: SUS3201, SUS304, SUS321, SUS316L
  7. Electric heating wire material selection: generally iron chrome aluminum wire (Beijing Shougang), nickel chrome wire (generally H140, 2080 resistance wire, etc.). The choice of these two depends on the customer's working environment (temperature and vibration).
Straight Finned Tubular Heating Element

Finned Heating element Uses

  • Insulation: Finned tubular heating elementare often used in hot air circulation, and insulation systems. There should be insulation and insulation layers around to reduce heat loss.
  • Wind speed: The general wind speed of the finned electric heating tube is suitable at 8-12 m/s. If the wind speed is too high, the head loss will increase, and the low temperature will reduce the heat dissipation efficiency.
  • Installation: It is generally installed in a staggered manner to make the air contact surface larger, fully heated, and took away heat.
  • Wiring part protection: The wiring part of the finned heating tube should be placed outside the insulation layer, which is convenient for future replacement, and on the other hand, it prevents the temperature of the wiring part from being too high.
  • Routine maintenance during intermittent use: If the insulation resistance is less than One megohm when it is idle for a long time, it can be dried in an oven of about 200 °C, or the voltage can be reduced to turn on the electric heating until the insulation resistance returns to normal.
  • Other:
    • The working environment airs relative humidity is not more than 95%.
    • The working voltage is not more than 1.1 times the rated value, and the outer casing should be effectively grounded.
    • Storage: Store in a room where air circulation, relative humidity is not more than 85%, and no corrosive gas.

Straight Line Finned Tubular Heating Element

Straight Finned Tubular Heating Element Size

Voltage Power Material L Diameter Fin diameter
220V 500W SUS201 500mm 16mm 28mm
220V 600W SUS201 600mm 16mm 28mm
220V 700W SUS201 700mm 16mm 28mm
220V 800W SUS201 800mm 16mm 28mm
220V 900W SUS201 900mm 16mm 28mm
220V 1000W SUS201 1000mm 16mm 28mm
220V 1200W SUS201 1200mm 16mm 28mm
220V 1500W SUS201 1500mm 16mm 28mm

U Finned Tubular Heating Element

U Finned Tubular Heating Element Size

Power Voltage L1 L2 W Diameter Screw thread
500W 220V 250mm 300mm 55mm 10mm M16*25
1000W 220V 270mm 320mm 55mm 10mm M16*25
1200W 220V 350mm 400mm 55mm 12mm M18*25
1500W 220V 400mm 450mm 55mm 12mm M18*25
2000W 220V 450mm 500mm 55mm 12mm M18*25
1500W 380V 400mm 450mm 55mm 12mm M18*25
2000W 380V 450mm 500mm 55mm 12mm M18*25

W Finned Tubular Heating ElementW Finned Tubular Heating Element Size

 

Power Voltage L1 L2 W Diameter Screw thread
1500W 220V 280mm 330mm 150mm 10mm M16*25
2500W 220V 400mm 450mm 160mm 12mm M18*25
3500W 220V 550mm 600mm 170mm 12mm M18*25
2500W 380V 400mm 450mm 160mm 12mm M18*25
3500W 380V 550mm 600mm 170mm 12mm M18*25

Tubular Material

Type Characteristic
Iron Easy to rust, used in places with high loss and no special requirements
201 Stainless Steel Good quality than iron pipe, suitable for most working environments, temperature less than 300 °C
304 Stainless Steel Better quality than 201, can be used in a slightly corrosive environment, can withstand 450 ° C
316 Stainless Steel Can be used in corrosive environments
2520 stainless steel --- can withstand 1300 ° C, special high temperature, high cost
Outsourcing Teflon Specially used in highly corrosive environments, 99% of strong acid and alkali does not react
Titanium Dedicated to highly corrosive environments, high temperature resistance, expensive construction, long life

Advantages

  • Selected high quality materials, corrosion resistant
  • High quality, long-term use of surface gloss as new
  • Using special processing, heat conduction is faster
  • Does not release harmful substances, environmental protection, non-toxic and non-polluting
  • Strong anti-oxidation ability, no rust in humid environment

Additional information

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