Specifications for a miniature cartridge heater are 3 inches or less long with diameters of 3.175 mm, 3.97 mm, 4.76 mm. The exterior of miniature cartridge heaters is generally made of 304 or 316 stainless steel. Most miniature heaters are addicted to shock resistance and vibration, as well as dielectric strength. As operating temperatures rise, thermal insulation in the heated section becomes more desirable to save heat.
Teflon cable cables with Teflon seals are used to protect cartridge heaters from moisture and contamination. Epoxy silicone seals (250 ° F) or RTV (450 ° F) are alternative barriers to resist contamination and moisture. We have placed the resistance cable as close to the outer shell as possible. The MgO powder insulation around the loops is compacted by stamping, making the heat transfer very efficient.
Pattern heaters can be considered as “component heaters” used to generate heat in many different applications. These process heaters are mainly used in mold and tight fit in a cavity and help heat solids at high temperatures. Cartridge heaters have the versatility to transport the indoor thermocouple to control heating temperatures more precisely. Different diameters allow use in any cavity and can be custom designed with any cold part. Pattern heaters are used as a boiler element and in a wide variety of applications. Some of these applications include bag sealing applications, hydraulic oil applications, engine oil applications, gearboxes, water heating applications, as well as laboratory equipment and food.
The aim is to heat the engine fluids, enabling the engine oil to be driven efficiently. Pattern heaters are the most effective and easy to install of the different types of block heaters. The thermal induction process used by cartridge heaters heats the coolant in an engine quickly and efficiently.
Specify “E” for final sealing in epoxy pots with 12 “Teflon® insulated cables. Electric cartridge heaters provide a pattern design for applications with high water density, high temperature and long life. Powerful custom designed cartridge heaters are critical to minimizing equipment downtime and maintenance Mica Band costs. Using our state-of-the-art design software and extensive technical expertise, Durex Industries offers a wide range of custom design and production options for cartridge heating elements. We produce and design industrial cartridge heaters that can withstand high temperatures up to 1400 ° F (760 ° C).
Depending on the size of the cartridge heater, the installation hole is reserved in the mold . Try to reduce the space between the heating pipe and the installation hole. When machining the installation hole, it is recommended that the one-sided space is less than 0.05 mm. The standard high temperature drives the cartridge out through a ceramic protective cover.
Thanks to the versatile mounting method for milling slots, the heating can leave the application at any desired location and cables can be routed from multiple heaters to one output area. Sensors and temperature cables can be built directly into the heating mounting system, reducing the complexity of wiring in heating applications in one or more areas. The areas for terminating the heating pipe can be easily insulated from potential contaminants and protected from physical abuse. Warm-up functions can be adjusted by adding additional heating elements or control zones in key locations with only minimal tool modification. Uniform heating of profiled surfaces and irregular shapes is easy to achieve using the ground slot square pattern mounting method. Depending on the free space and the design of the machine where the cartridge heater is placed, the type of cable will vary.
Check out our cartridge heaters page to select the most commonly used styles available for fast production to your specifications. However, the optimal operating temperature depends on the application for which you use the cartridge heater. A cartridge heater consists of a resistance coil wrapped around a ceramic core surrounded by dielectric and enclosed in a metal sheath. The supplied heat transferred to the sheath via the coil ensures that the sheath warms up.
The high surface load heating pipe is used in the environment with little ventilation, making the surface temperature easily too high and the tube burning. When using a liquid cartridge heater, the heating tube should be selected based on the heating liquid medium, especially for the corrosion solution. Second, the surface load of the heating pipe must be controlled according to the heating liquid medium.
In applications where cables can be exposed to harmful chemicals or extreme heat, they are protected with metal or silicone. The sealing process is designed to contain and seal the contents of the cartridge heater. This part of the process is completed as soon as the MgO is packed tightly around the coil and core. A common type of sealing material is epoxy, which allows the stove to withstand various electrical tests and ensure the performance of the dielectric material and prevent shorts. For core cartridge heaters, the resistance cable, which is generally nickel chrome, wraps around the core.