Stainless Steel Spiral Immersion Heating Element for Household/Commercial Kettles/Water Boilers

• Customization: Available
• Certification: RoHS, CE
• Material: Ni-Cr Wire
• Model NO.: WH-7702
• Form: Heating Wire
• Shape: Double-Ended Spiral
• Rated Voltage: AC 220V 50Hz
• Rated Power: 1500W / 1800W / 2000W
• Surface Power Density: 10~12W/Cm²
• Insulation Resistance: ≥1000MΩ (at Room Temperature)
• Dielectric Strength: 1500V AC / 1min, No Breakdown.
• Leakage Current: ≤0.5mA
• Tube Diameter: φ8mm / φ10mm
• Sheath Material: Food-Grade 304 Stainless Steel
• Coil Turns: 3~4 Turns
• Thread Size: M12 / M14
• Terminals: Plug-in Terminal Block (6.3mm)
• Transport Package: Carton/Pallet/Wooden Case Packaging
• Specification: Liquid Heating Element
• Trademark: Thermal International
• Origin: China
• HS Code: 8516800000
• Production Capacity: 50, 000PCS/Month
• Package Size: 50.00cm * 45.00cm * 45.00cm
• Package Gross Weight: 18.000kg

Product Description

Product Description

Stainless Steel Spiral Immersion Heating Element for Household/Commercial Kettles/Water Boilers

This double-threaded spiral liquid heating element is primarily designed for liquid immersion heating, and its applications extend beyond household kettles to include various sectors such as home, commercial, and industrial applications.

The core advantages of this heating element are its large heat exchange area and high heating efficiency resulting from the spiral structure. Furthermore, its double-threaded design ensures convenient installation and reliable sealing, making it the preferred element for small-volume liquid heating applications. It can be fully customized to meet different medium, temperature, and power requirements, adapting to the vast majority of heating scenarios.

Core Product Advantages (for kettles):

- Fast Heating: The spiral structure has a larger heat exchange area than ordinary straight U-shaped tubes, resulting in faster boiling at the same power, saving time.

- Compact Structure: The spiral section can be completely immersed in the water at the bottom of the kettle, without occupying internal space or affecting the kettle's capacity.

- Easy Installation: The threaded end is directly screwed into the mounting hole at the bottom of the kettle; a nut and sealing ring are all that's needed to complete the seal, making maintenance and replacement convenient.

- Safe and Durable: Food-grade stainless steel with a magnesium oxide insulation layer prevents leakage, is corrosion-resistant, meets household appliance safety requirements, and has a long service life.

- Easy to Clean: The smooth surface of the tube makes it easy to remove limescale, preventing limescale from affecting heating efficiency and water quality.

Specification

Basic Info.

Item Name: Spiral Immersion Heater for Electric Kettle

Product Type: Liquid Immersion Tubular Heater

Applicable Scenarios: Household/Commercial kettles, electric kettles, health-preserving kettles, water boilers

Core Uses: Heating drinking water, rapid boiling.

Core electrical parameters (standard household model)
Project Name	Standard Selection	NOTES
Rated Voltage	AC 220V 50Hz (National Standard for Household Use)	Customizable 110V/120V (Export Model)
Rated Power	1500W / 1800W / 2000W	1.5L~2L household kettles are standard with a power output of 1500W-1800W; larger capacity options include 2000W.
Surface Power Density	10~12W/cm²	Specifically designed for water heating, balancing efficiency with anti-scaling and anti-dry-burning properties.
Insulation Resistance	≥1000MΩ (at room temperature)	Meets factory testing standards and complies with household appliance safety requirements.
Dielectric Strength	1500V AC / 1min No breakdown.	Complies with GB 4706.1 and IEC 60335 household appliance safety standards.
Leakage Current	≤0.5mA	Eliminate the risk of electric leakage and ensure safe use.
Structural & Dimensional Parameters (General Fit, Customizable)
Project Name	Standard Size	Customization Range
Tube Diameter	φ8mm / φ10mm	φ6mm~φ12mm, φ8mm is the mainstream size for home use.
Sheath Material	Food-grade SUS304 stainless steel.	Can be upgradable to SUS316L (high corrosion resistance).
Coil Turns	3~4 turns	2-6 revolutions; the more revolutions, the larger the heat exchange area.
Coil Outer Diameter	φ50mm~φ70mm	φ40mm~φ100mm, suitable for teapot bottom sizes.
Heating Length	250mm~350mm	Customized according to power; 1500W is approximately 300mm.
Lead Rod Length	80mm~120mm	To fit the installation space of the kettle bottom, including threaded section.
Thread Size	M12 / M14 (commonly used in Chinese national standards)	And G1/4" and other imperial threads can be customized (export models).
Terminals	Plug-in terminal block (6.3mm plug)	Suitable for kettle thermostats and base wiring.
Sealing Structure	Food-grade high-temperature resistant silicone sealing ring + high-temperature sealant.	Leak-proof, anti-electric shock, withstands boiling water up to 100℃.

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