What certifications does the product have?

The product holds RoHS and CE certifications and conforms to GB/T 23799-2009 and IEC 60335 standards.

What is the lead time for production?

During peak season, the lead time is one month. In the off-season, it is within 15 workdays.

What is the minimum order quantity?

The provided text does not specify a minimum order quantity (MOQ).

Energy-Saving Spiral-Type Immersion Heating Element for Water Boiler/Water Heater

Name: Energy-Saving Spiral-Type Immersion Heating Element for Water Boiler/Water Heater
Brand: Thermal International Co., Ltd.
SKU: 1991705931

Guangdong, ChinaThermal International Co., Ltd.

US$1.77

500-999 Pieces

US$1.75

1,000-4,999 Pieces

US$1.73

5,000-9,999 Pieces

US$1.71

10,000+ Pieces

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

Certification

RoHS, CE

Material

Ni-Cr Wire

Model NO.

WH-8402

Form

Heating Wire

Shape

Spiral-Type

Rated Voltage

110V/220V/380V

Rated Power

1.5-6kw

Number of Spiral Turns

4~6 Turns, Customizable.

Tube Diameter

φ8mm / φ10mm

Sheath Material

Food-Grade 304 Stainless Steel

Spiral Outer Diameter

φ40mm~φ80mm

Surface Power Density

10~12W/Cm²

Insulation Resistance

≥1000MΩ (at Room Temperature)

Withstand Voltage

1500V AC / 1min Without Breakdown

Leakage Current

≤0.5mA

Transport Package

Carton/Pallet/Wooden Case Packaging

Specification

Liquid Heating Element

Trademark

Thermal International

Origin

China

HS Code

8516800000

Production Capacity

50, 000PCS/Month

Key features

High Efficiency Heating: Heat exchange area is more than twice that of U-tubes for faster heating.

Versatile Installation: External lead terminals reduce equipment cavity requirements compared to flanged tubes.

Customizable Voltage: Available in 110V, 120V, 220V, and 380V to match global standards.

Customizable Power: Rated power ranges from 1.5kW to 8kW, tailored to equipment capacity.

Food-Grade Material: Constructed with food-grade 304 stainless steel for safe liquid heating.

Safety Protection: Requires thermostat and anti-dry burning protectors to prevent hazards.

Wide Application: Suitable for water heaters, dispensers, soy milk makers, and insulated tanks.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Thermal International Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2008-09-01Nearest Port: Shenzhen, ningbo and ShanghaiAverage Response Time: ≤3.67hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, FCA

AI-Powered supplier vetting

SummaryThermal International Co., Ltd. is identified as a private manufacturer/factory in Shenzhen, China, specializing in home-appliance heating elements, thermostats, switches, and motors. The supplier reports ISO 9001 certification, six production lines in one operational record, and a separate company description claiming ten assembly lines across three owned factories. It reports 11–20 R&D engineers, 11–20 quality-control staff, and product output information for hot plates, heating elements, and thermostats. Export activity began in 2008, with 51%–70% of total sales from exports and self-operated import/export rights. The supplier states that it supports on-site and third-party inspections, pre-sales consultation, timely delivery, and after-sales service. However, several areas—including outsourcing procedures, inventory, overseas operations, OEM/ODM, SDK-related R&D, quality traceability, customer cases, and current audit validity—remain unverified or explicitly unknown.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory, with a stated factory location in Shenzhen, China. Its reported production infrastructure includes six production lines in one record, while another description claims ten assembly lines across three owned factories, so the exact consolidated factory footprint is inconsistent but manufacturing status is clear.

CertificationsThe supplier reports ISO 9001 certification for its management system. This is explicit evidence of certification holding, although no certificate number, scope, or validity period is provided.

After-Sales capabilityThe supplier states that it provides personalized service from pre-sales consultation through after-sales service, with a sales team offering professional advice and timely delivery. These statements support the existence of an after-sales service commitment, although no service-level details or performance evidence are supplied.

Production capacityThe supplier reports six production lines in one factory record, while its company description states ten assembly lines across three owned factories. It also provides product-specific output quantities for hot plates, heating elements, and thermostats, which explicitly supports established production capacity, although the differing line counts should be clarified.

Product Q&A

Q:What are the main differences between this spiral element and U-tube elements?

At the same installation height, the spiral element offers more than twice the heat exchange area of a U-tube, resulting in significantly faster heating.

Q:Can the voltage and power be customized?

Yes, the rated voltage is customizable (110V/120V/220V/380V) and the rated power ranges from 1.5kW to 8kW based on capacity.

Q:What materials are used for the heating element?

The element uses Ni-Cr wire and a food-grade 304 stainless steel sheath.

Q:What are the installation precautions?

Dry burning is strictly prohibited; the element must be fully submerged. A food-grade silicone sealing ring is required for zero leakage, and terminals must be tightly insulated.

Q:How often should the element be cleaned?

It is recommended to clean with a food-grade descaling agent like citric acid every 3-6 months to remove scale and maintain efficiency.