Thermocouples, RTDs or thermistors are available with an adhesive back or the possibility to cement the heating surface. An essential concern for heating processes is overheating, which can seriously damage end products and heating equipment. The temperature detection capabilities of cartridge heaters prevent overheating by eliminating the need for monitoring and treatment. Pattern heaters provide efficient and unattended, controlled and localized heat. There are a wide variety of types of finishes that differ depending on the type of cartridge heater and the manufacturer. As you can see in the diagram below, cables can leave the cartridge heater in different ways, with the default method being straight.
If your cartridge heater extends out of the hole, it only has the surrounding air to remove the heat generated by the heater. Due to the small size and high heating power of the cartridge heater, it is particularly suitable for heating metal molds. It is usually used with thermocouples to achieve good heating and temperature control effects. Whether in molds, plates or molds, or for liquid immersion applications, cartridge heaters are ideal solutions for punctual and highly efficient heating.
A common feature for cartridge heaters is to heat metal blocks from the inside with a predetermined ability to meet the needs of the application. For heating blocks or metal dies, a hole is drilled in the part with a diameter greater than that of the cartridge heater. OMEGALUX ™ C series electric heavy-duty cartridge heaters are particularly suitable for use in applications with hobs, molds, dies, plates and container heating. Application at high watt densities: CIR type cartridge heaters are designed and manufactured to provide unsurpassed watt density capabilities. For the best life to the highest water densities that Curve G-235 has allowed in the application guidelines, special attention to application details is proposed. Cartridge heaters can be manufactured in 3 main technologies, high density, medium range or low density depending on the application, dimension and watt density.
Unlike conventional heaters, Watt-Flex cartridge heaters do not have a ceramic core that can burst during printing. LectraHeat heaters are so compacted that they produce superior heat transfer and the dielectric and physical strength required for long heating life and excellent performance. LectraHeat cartridge heaters are available in 3/8 ″, 1/2 ″, 5/8 ″ and 3/4 ″ with a wide variety of lead configurations.
Food production requires the same type of precision and control required for injection molding and casting, and the fundamental difference is to assist in the accurate preparation of food. This is especially true for large food production, where the cooking temperature must be constant during production. Heat control by cartridge heaters are important components in all aspects of food preparation. The mold process is like the mold process with variations of materials and methods. As with molds, it is necessary to precisely control the clotting temperature of the heated metal.
The heated length is the length of the cartridge heater minus the unheated or cold part. For optimal performance, the heated length should correspond to the length of the heated item. Mica Band Heaters Any part that is not heated will create hotspots and cause the heating to fail. The standard for high density cartridge heaters is 10 mm at the front and 6 mm at the end of the disc.
Fiber is most commonly used for cartridge heaters and other high temperature applications such as car harnesses and industrial equipment. Other variants used are silicone-impregnated fiberglass and silicone rubber. Cartridge heaters are also used to heat water with low viscosity and water-based liquids by adding a wire head to the end of the heater. The small and large capacity of the cartridge heaters make them ideal heating elements in tight spaces. For water heaters, a classification of 150 to 300 watts per square inch is recommended (much higher classifications are possible for conditions with high water flow on the heater.
For easy installation, the heaters are slightly lower compared to their nominal diameter. A wide variety of lead and sealing options, construction variations and mounting options ensure compatibility with new and existing heating applications. The design and production process for the NPH square change cartridge focuses on fast delivery in standard versions and focuses on applying the NPH cartridge heating Cartridge heaters are used to heat metal parts and can also be equipped with threaded bushings to heat liquids for certain applications. Cartridge heaters reach metal temperatures up to 1,400 ° F (760 ° C) with the correct material, water density and adjustment selections (see Figure 2 on our catalog page 7.2).
MagnumTM cartridge heaters last up to 20 times longer than non-compacted heating elements. Durex also offers on-demand UL / cUL component recognition, with additional design concepts that can be custom-made to meet your exact specifications. For medium densities, general purpose drill holes are generally suitable for hole drilling. These generally result in holes from .003 “to .008” over the nominal size of the drill, resulting in modifications of .010 “.015”. Of course, a tighter fit is desirable from a heat transfer point of view, but slightly more flexible helps install and remove cartridge heaters, especially long ones. Holes fully drilled through the part are recommended to facilitate heating extraction.