Tubular air heating element

Product Application

Household appliances: heaters, air conditioning auxiliary heating modules, electric heaters, instant water heaters.
Industrial equipment: automotive air conditioning heater cores, agricultural greenhouse constant temperature systems

Product parameters and specifications

Power range:
Household: 500W–3000W (electric heater, air purifier, bathroom heater)
Industrial: 3000W–20kW (industrial oven, HVAC system, pipe heating)
Working voltage: 110V/220V single-phase AC or 380V three-phase AC (global power grid compatible, error ≤±5%).

Resistance value: 2Ω–50Ω (accurately matched by voltage and power, error ≤±3%).

Working temperature:
Conventional model: continuous and stable operation of 150°C–300°C (self-limiting temperature design, anti-overheating).
High temperature model: short-term tolerance of 400°C (customized heat dissipation structure and high-temperature ceramic coating are required).

Material:

Base material: stainless steel 304/316L (corrosion-resistant and anti-oxidation) or aluminum alloy (lightweight, thermal conductivity ≥200W/m·K).
​​    Heating wire: nickel-chromium alloy (NiCr) or iron-chromium-aluminum (FeCrAl), resistant to high temperature oxidation.
​​    Surface treatment: anodized layer (corrosion resistant) or ceramic coating (resistant to high temperature up to 600°C).
​​Dimensions:
Diameter: Φ10mm–Φ50mm, length 100mm–2000mm (supports customized length and fin density).
Fin spacing: 5mm–30mm (adjustable wind resistance and heat dissipation efficiency).
​​Service life: 20,000–80,000 hours (based on operating temperature and heat dissipation conditions, anti-oxidation coating extends life).
​​Customizable service: support power, voltage, fin shape adjustment, optional explosion-proof certification, IP protection level (such as IP68), integrated temperature control probe, etc.

​​Core advantages

​​Efficient heat dissipation and thermal efficiency:

The spiral fin structure optimizes the airflow path through CFD, the heat convection efficiency is increased by 50%, and the heat exchange rate under forced air cooling is ≥95%.
The thermal conductivity of stainless steel/aluminum alloy substrate is 5 times that of steel, and the volume is reduced by 60% at the same power, which is suitable for compact equipment.
​​Self-limiting temperature safety feature:
Adopt PTC ceramic chip (optional) or nickel-chromium alloy heating wire, automatically reduce power when the temperature exceeds the set value, no external thermostat is required, and overheating and combustion are prevented.
​​Quick response and energy saving:
Lightweight design (density 2.7g/cm³) + low heat capacity characteristics, heating to 200°C within 30 seconds, energy consumption is reduced by 30% compared with traditional heaters.
​​Corrosion resistance and long life:
316L stainless steel is resistant to acid and alkali corrosion (pH 1–14), and the anodized layer or ceramic coating is resistant to salt spray test ≥500 hours, and the life is extended by 2–3 times.
​​Multi-scenario adaptability:
Supports IP68 waterproof and dustproof (suitable for bathrooms, outdoor equipment), explosion-proof certification (Ex d IIB T4, suitable for petrochemical environments).
​​Intelligent compatibility​​:
Integrated NTC temperature sensor and PWM power regulation module, supports IoT remote temperature control (APP/PLC), and is suitable for smart building systems.
​​Global compliance​​:
Complies with CE, UL, CCC, RoHS certifications, and supports AEC-Q200 automotive-grade standards (vibration resistance, wide temperature range -40°C~+85°C).