Product Overview
Finned tubular heaters (I‑type / U‑type / W‑type) are air dry‑burn electric heating elements. Spiral fins are brazed on metal sheath to enlarge heat‑exchange area, improve heat dissipation, lower surface temperature, widely used for oven, drying cabinet, air duct heater, industrial heating equipment. All shapes & dimensions can be customized according to customer drawings.
Main Technical Parameters
I‑type (Straight ), U‑type, W‑type, Double‑W type；Customizable
Rated Voltage: 12V‑600V AC；Common:110V/220V/230V/240V/380V
Rated Power: 100W-10000W; Customized
Power Tolerance: +5% /‑10%
Sheath Material: SS201, SS304, SS321, SS316L, SS310S, Incoloy800/840
Fin Material: SS304, SS316, Carbon Steel / Galvanized Steel
Tube Diameter: Φ6‑Φ20 mm (Φ8/Φ10/Φ12/Φ14/Φ16 common)
Fin Height: 3‑10 mm
Heating Wire: Cr20Ni80 / 0Cr25Al5
Insulation Filler: High‑purity Magnesium Oxide (MgO)
Max Working Temp: ≤800℃ (depends on sheath material)
Cold Insulation Resistance: ≥1 MΩ
Cold Leakage Current: ≤0.5 mA
Certificate: CE, RoHS
Typical Shape Description
Straight finned tube, simple structure, easy installation, used for air channel, cabinet heating.
U‑bending finned element, compact layout, widely used for oven, drying machine.
Multi‑bend W shape, longer heating length within limited space, high total power, for large air duct heater.
Application
Industrial oven, drying equipment, air duct heater, cabinet heating, curing furnace, heat treatment equipment, agriculture greenhouse heating.
Order Information
- Customer should provide below data for quotation:
- Shape: I / U / W /other drawing 形
- Voltage & Power
- Tube diameter
- Effective heating length & total length
- Sheath & fin material
- Fin height /fin pitch
- Terminal thread size
- Working environment & max operating temperature
Notes
- Designed for dry‑burn air heating, DO NOT use in liquid.
- Suggest forced air circulation service; watt density shall be reduced under static air.
- Keep good ventilation, avoid over‑temperature burnout.
- All custom dimensions subject to drawing confirmation.
