Cartridge Heaters

Cartridge heaters are heating devices designed for applications requiring precise temperature control under critical operating conditions. Their compact design and high-power density make them ideal for heating environments and components efficiently and reliably, even under extreme conditions.

Cartridge heaters can be manufactured in both low power density versions, with specific power ratings up to 6-8 W/cm², and high-power density versions, reaching 15-20 W/cm² and operating temperatures up to 700°C.

These features give cartridge heaters a longer service life and superior performance compared to traditional heaters.

Cartridge Heaters Cartridge Heaters

CARTRIDGE HEATERS APPLICATIONS

Cartridge heaters are widely used in industries where precision and high temperatures are required. Their main applications include:

  • Mould heating: used to maintain moulds at optimum temperatures during forming and moulding processes.
  • Injection chambers: ideal for heating nozzles and injection machine chambers to ensure uniform heat distribution.
  • Hot Plates: used in laboratory and industrial applications for uniform surface heating, such as welding and bonding processes.

Reliability and precise temperature control make these heaters ideal for industrial environments and advanced heating processes.

REART cartridge heaters are used in the following key industries:

TECHNICAL FEATURES OF CARTRIDGE HEATERS

Cartridge heaters are designed with a robust structure and high-quality materials to ensure optimum performance, with the following construction specifications:

  • NiCr 80/20 resistance wire: manufactured from nickel-chromium to ensure high electrical resistance and durability.
  • High purity magnesium oxide insulation: this material surrounds the resistance wire for better heat conduction and insulation.
  • Stainless steel outer sheath: protects the heater from external agents and ensures resistance to corrosion.
  • Integrated power leads with no rigid parts: integrated directly into the heater head for improved handling and ease of installation.
  • Heater diameter according to the size of the mounting hole.
  • Length to suit power rating and operating conditions.

Integrated Thermocouples for Temperature Sensing:

On request, the heaters can be fitted with sensors to monitor temperature, ensuring safe operation and extended life. The sensors are type “J” thermocouple, also known as Iron-Constantan, located near the bottom of the heater and insulated from the external metal sheath.

REART can supply customised cartridge heaters with threaded connections to suit the client’s specific processes.

GET A QUOTE

To find out more about our products or to get a customised quote, please complete the form on our website and our team will provide you with all the information you need.










FAQ - FREQUENTLY ASKED QUESTIONS about Cartridge Heaters

How is the maintenance of the cartridge heaters carried out?

Cartridge heaters are relatively easy to maintain. It is recommended that the external surfaces are cleaned regularly and that the electrical connections and temperature sensors are checked for correct operation to ensure optimum performance and extend the service life of the unit.

A general-purpose electric heater is a device that converts electrical energy into heat and is used for standard heating applications in a variety of environments. Cartridge heaters, however, are a specific type of electric heater designed for applications that require concentrated, accurate and rapid heating in tight areas. They have a high-power density and can reach temperatures of up to 700°C, making them ideal for heating industrial components such as moulds, hot plates and injection chambers.

Can flanged electric heaters be ATEX certified for potentially explosive areas?
Based on the classification of the installation area, Ex-d marking can be applied, and immersion electric heaters can be built to be suitable for classified areas.

Cartridge heaters offer several advantages, including:

  • High precision: their ability to control temperature makes them ideal for applications that require targeted and precise heating.
  • High power density: they can achieve high temperatures in tight spaces.
  • Durability: high-quality materials and advanced insulation ensure long-lasting performance, even in harsh conditions

The size and power of the cartridge heater will depend on the specific requirements of the application. To choose the right model it is important to consider factors such as the required operating temperature, the surface to be heated and the working conditions. REART can help you choose the right heater and provide customised solutions to meet your operational requirements