The heating tube with thermal cutoff is specially designed with an integrated safety protection system, combining efficient heating performance with reliable over-temperature protection. Inside the tube, when current flows through the resistance wire, the heat generated is conducted through high-purity magnesium oxide insulation powder to the metal sheath surface, and then efficiently transferred to the heated medium such as air, liquid, or solid components.
A thermal fuse is embedded in the heating tube as a safety enhancement. If the operating temperature exceeds the preset limit, the fuse automatically disconnects the circuit, preventing overheating, equipment damage, or safety hazards. This ensures safe and stable operation, even in cases of abnormal working conditions such as dry burning or overheating.
The heating tube with thermal cutoff features robust construction, strong mechanical strength, long service life, and reliable performance. It is widely used in water heaters, household appliances, industrial heating systems, boilers, oil heaters, and other equipment where enhanced safety protection is essential.
Lengths, voltage, power, and fuse temperature ratings can be customized according to customer requirements. With advantages such as high efficiency, safety assurance, and durability, the heating tube with thermal cutoff provides a dependable and secure solution for both household and industrial heating applications.
| Item | Specification |
| Material | Seamless Stainless Steel / Copper / Incoloy (Customizable) |
| Tube Diameter | Φ6–20mm |
| Length | 100–3000mm (Customizable) |
| Sheath Material Options | SUS304, SUS321, SUS316L, SUS310S, Incoloy 800/840 |
| Heating Wire | Ni-Cr resistance wire |
| Insulation | High-purity magnesium oxide powder |
| Lead Wire | Standard 200mm (Customizable) |
| Operating Temperature | Up to 800–900°C |
| Thermal Cutoff (Fuse) | Rated cutoff temperature: 70°C–250°C (Customizable) |
| Input Voltage & Power | Customizable according to requirements |
| Installation Method | Direct insertion, threaded, flange-mounted, or customized |
| Service Life | ≥10,000 hours under rated conditions |
● Safety Protection: Built-in thermal cutoff automatically disconnects the circuit in case of overheating
● High Efficiency: Excellent heat transfer, fast heating, and high thermal efficiency
● Durable Construction: Stainless steel, copper, or Incoloy sheath for high temperature and corrosion resistance
● Long Service Life: ≥10,000 hours under rated conditions
● Customizable: Voltage, power, length, and cutoff temperature available upon request
● Stable Performance: High mechanical strength, vibration and impact resistance
● Water heaters, electric kettles, coffee machines, and household appliances
● Industrial heating systems, boilers, and oil heaters
● Food processing and baking equipment
● Medical devices and laboratory instruments
● Industrial drying and dehumidification systems
● Applications requiring anti-freezing, dry-burn prevention, and over-temperature protection
