What is the minimum inner diameter?

The minimum inner diameter for the coil heater is 8mm.

What materials are used for the sheath and insulation?

The sheath material is SS304 stainless steel, and the insulation material is high pure MgO.

What are the main applications for these heaters?

They are mainly used in injection molding machines, hot runner nozzles and bushings, packaging machines, and hot runner manifolds.

Factory OEM Hot Runner Spring Coil Heater with J Type Thermocouple

Name: Factory OEM Hot Runner Spring Coil Heater with J Type Thermocouple
Brand: Thermal International Co., Ltd.
SKU: 852951545

Guangdong, ChinaThermal International Co., Ltd.

US$1.90

100 Pieces

Sample price:US$1.90/piece.Request sample

Product profile

Customization

Available

Certification

Type

Spring/Coil Type

Model NO.

COIL

Material

Ni-Cr Wire

Form

Spring Type

Shape

Tubular

Sectional Area

3X3, 4.2X2.2, 4X2, 4X2.7, 4X2.5, 3.3X3.3, 3.5X3.5

Min. Inner Diameter

8mm

Sheath Material

SS304

Insulation Material

High Pure MGO

Resistance Wire

Cr20ni80

Max. Sheath Temp.

700degrees

Dielectic Electrical Strength

800V A/C

Dimensional Tolerance

Coil ID. +/-0.1~+/-0.2mm; Coil Length. +/-1mm

Wattage Tolerance

+/-10%(+/-5% Available Upon Request)

Voltage & Wattage

12-380V/70-1000W

Transport Package

Polybag and Outer Carton or Wooden Case

Trademark

Thermal International

Origin

Guangzhou, China

HS Code

8516800000

Production Capacity

20, 000PCS/Week

Key features

Customizable Dimensions: Offers various sectional areas and inner diameters to fit specific nozzle requirements.

High Temperature Resistance: Max sheath temperature reaches 700 degrees with SS304 sheath material.

Built-in Thermocouple Option: Available with J/K type thermocouples for precise temperature monitoring.

OEM Service Support: Professional team provides one-stop service from design to production based on customer needs.

Robust Design: Constructed with compacted MgO and high-temperature Nickel-chrome wire for durability.

Wide Voltage Range: Supports 12-380V and 70-1000W for versatile application scenarios.

Precision Fit: Designed for even heat profile and precision fit on Hot Runner Nozzles & Manifolds.

Certified Quality: Products hold CE, ISO9000, SGS, and explosion-proof certifications.

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: ≤3.40hTerms 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.