Threaded Cartridge Heater

Threaded Cartridge Heater

Threaded Cartridge Heater is a screw-in heating element designed for applications where a threaded connection is preferred over a press-fit installation.
With an integrated BSP thread, the heater can be directly screwed into equipment for convenient installation, removal and replacement.

Our standard threaded cartridge heaters use a SUS321 stainless steel sheath, BSP thread and 220V power supply.
Common 1/4″, 3/8″ and 1/2″ BSP models are available in stock. NPT threads, built-in thermocouples, special thread sizes and other configurations are available for custom production.

Screw-in Threaded Design

• Screw-in Installation: Threaded connection allows direct installation into a threaded equipment port.
• BSP Thread: 1/4″, 3/8″ and 1/2″ BSP stock configurations.
• Easy Replacement: Threaded mounting allows convenient heater removal and replacement.
• Non-heating Thread Section: The threaded section is designed as a non-heating zone. Only the heater tube below the thread generates heat.
• Custom Threads: NPT and special thread dimensions are available for custom orders.

Product Specifications

Stock Threaded Cartridge Heater Sizes

The following Threaded Cartridge Heater models are available as standard stock sizes.
All stock models use a BSP thread, SUS321 sheath and 220V power supply.

Custom Threaded Cartridge Heater

In addition to standard BSP models, we manufacture custom Threaded Cartridge Heaters according to customer drawings, samples or application requirements.

• Custom NPT or other thread standards
• Custom thread diameter and thread length
• Custom heater diameter
• Custom heated length and overall length
• Custom voltage and power
• Custom watt density
• Built-in K-type or J-type thermocouple
• SUS321 / SUS316L / Inconel 600 sheath options
• Custom lead-wire length and configuration
• L-shape and other special lead-out configurations

Applications

• Liquid heating tanks and small water heating vessels
• Small oil tanks and process liquid heating equipment
• Hot melt machines and glue dispensing equipment
• Packaging and sealing machinery
• Small chemical reactors and process vessels
• Air heating chambers and duct heating modules
• Equipment requiring screw-in heater installation
• Industrial equipment requiring convenient heater replacement

Installation & Safety Notes

• The threaded section is a non-heating zone. Only the heater tube below the thread generates heat.
• For liquid heating applications, make sure the heated section is properly immersed according to the equipment design.
• Dry operation can cause excessive temperature rise and premature heater failure.
• Make sure the thread is correctly matched with the equipment port before installation.
• Do not overtighten the threaded connection, as excessive mechanical force may damage the heater.
• Built-in thermocouple versions require correct connection of the heating and sensor wires.

Cartridge Heater Series

The Threaded Cartridge Heater is one of our cartridge heater configurations. If you are comparing different cartridge heater designs, you can also view our
Cartridge Heater
main product page for an overview of cartridge heater types, applications and custom options.

• Standard Cartridge Heater
  – general-purpose press-fit industrial heating.
• High-Density Cartridge Heater
  – rapid heating and higher watt-density applications.
• Miniature / Micro Cartridge Heater
  – compact heating for limited installation spaces.
• L-Shape Cartridge Heater
  – suitable for applications requiring a special outlet direction.
• Cartridge Heater with Built-in Thermocouple
  – combines heating and temperature sensing in one heater.
• Flange-Mount Cartridge Heater
  – provides secure mechanical mounting with a flange and compression fitting.

Contact Us for a Threaded Cartridge Heater

Need a stock model or custom Threaded Cartridge Heater?
Contact our sales team for pricing, availability and OEM production.
Please provide your required thread size, heater diameter, heated length, voltage, power and quantity.

Stock sizes available. Custom threaded cartridge heaters supported.