Built-in Thermocouple Cartridge Heater

Cartridge Heater with Built-in Thermocouple

Cartridge Heater with Built-in Thermocouple combines heating and temperature sensing in one compact heating element.
The built-in K-type thermocouple provides real-time temperature feedback without requiring a separate sensor installation, making it suitable for precision molds, laboratory heating blocks, automation equipment and other applications requiring accurate temperature control.

The standard version uses a SUS321 stainless steel sheath, built-in K-type thermocouple and 220V power supply.
J-type thermocouple, special dimensions, higher watt density and other configurations are available for custom applications.

Built-in Thermocouple Design

• Built-in Sensor: K-type thermocouple for standard stock models
• Optional Sensor: J-type thermocouple available for custom orders
• Integrated Structure: Heating element and temperature sensor are combined inside one cartridge heater
• Temperature Feedback: Enables real-time temperature monitoring close to the heating area
• Temperature Accuracy: Approximately ±1–2°C depending on installation and control conditions
• Installation: Recommended H7 close-fit bore for stable heat transfer and temperature sensing

Product Specifications

Item	Specification
Product Type	Cartridge Heater with Built-in Thermocouple
Sheath Material	SUS321; SUS316L / Inconel 600 available for custom orders
Built-in Sensor	K-type Thermocouple standard; J-type custom
Insulation Material	High-purity compacted Magnesium Oxide (MgO)
Diameter	Φ8mm – Φ16mm stock; other diameters custom-made
Heated Length	80mm – 200mm stock; custom length available
Standard Voltage	220V
Custom Voltage	12V / 24V / 110V / 380V and other voltages
Watt Density	7–12 W/cm² for stock models
Power Tolerance	-10% ~ +5%
Maximum Working Temperature	Up to 600°C depending on construction and operating conditions
Lead Configuration	Separate heating wires and thermocouple signal wires
Installation Hole	H7 close-fit bore recommended

Stock Built-in Thermocouple Cartridge Heater Sizes

The following Cartridge Heater with Built-in Thermocouple models are available as standard stock sizes.
Stock models use a SUS321 sheath, 220V power supply, straight lead configuration and built-in K-type thermocouple.

Custom Cartridge Heater with Built-in Thermocouple

We support OEM and custom production for applications requiring integrated heating and temperature sensing.
Custom designs can be manufactured according to customer drawings, samples or application requirements.

• Custom diameter and heated length
• Custom overall length
• Custom voltage and power
• Custom watt density
• K-type or J-type thermocouple
• Custom thermocouple lead length
• Custom heating lead length and configuration
• SUS321 / SUS316L / Inconel 600 sheath options
• Miniature and special structural designs

Applications

• Precision injection molds requiring closed-loop temperature control
• Laboratory heating blocks and testing equipment
• Medical analytical instruments
• High-precision automation heating modules
• Packaging machinery temperature monitoring systems
• Precision hot runner heating units
• Industrial equipment requiring integrated heating and temperature sensing

Installation & Wiring Notes

• The heating wires and thermocouple wires are separate electrical circuits and must be connected correctly.
• Incorrect wiring may result in no heating, incorrect temperature readings or control-system errors.
• An H7 close-fit bore is recommended for stable heat transfer and accurate temperature sensing.
• The heated section should have good contact with the bore wall to minimize thermal resistance.
• For liquid or process heating, ensure the heated section is properly installed according to the application requirements.

FAQ

Q: What type of thermocouple is built into the cartridge heater?

A: The standard stock version uses a K-type thermocouple. J-type thermocouples are available for custom orders.

Q: Does the built-in thermocouple require a separate sensor hole?

A: No. The thermocouple is integrated into the cartridge heater, eliminating the need for a separate sensor hole near the heating element.

Q: Can the voltage and power be customized?

A: Yes. We can manufacture custom voltage, power, diameter, heated length, lead configuration and thermocouple type according to your requirements.

Q: Do you have built-in thermocouple cartridge heaters in stock?

A: Yes. Selected SUS321, 220V models with built-in K-type thermocouples are available as stock sizes. Please contact us for current availability.

Related Cartridge Heater Products

For other cartridge heater configurations, you can also view our
Standard Cartridge Heater,
High-Density Cartridge Heater,
Miniature / Micro Cartridge Heater,
L-Shape Cartridge Heater,
Threaded Cartridge Heater
and
Flange-Mount Cartridge Heater.

Contact Us for a Cartridge Heater with Built-in Thermocouple

Need a stock model or custom Cartridge Heater with Built-in Thermocouple?
Contact our sales team for pricing, availability and OEM production.
Please provide your required diameter, heated length, voltage, power, thermocouple type and quantity.

Stock sizes available. Custom cartridge heaters with built-in thermocouples supported.