Low-Density Cartridge Heaters are developed for heating applications where sheath temperatures not exceeding 3000c with maximum watt densities of 30 to 45 watts per square inch depending on applications. The heaters of various sheath diameters can be used in any assembly equipment of machine.
The heater design consists of helically wound resistance coil made from nickel-chrome wire, evenly stretched and strung through holes in a round ceramic insulator. The element assembly is inserted into a Chrome Nickel Steel sheath. This alloy provides the best combination of physical strength and resistance to heat oxidation up to 4500c.
Specially selected grain size and high purity magnesium oxide are used to fill all remaining space inside the ceramic insulator to increase thermal conductivity, dielectric strength, and provide longer operating heater life.
Available in different lengths from 50mm to 1200mm, sheath metal brass, SS304, SS316, Incoloy 800, copper
Watt density 20 watts per sq inch
Diameter option from 6mm to 30mm
Maximum sheath temp 300° C
Up to 1400°F (760°C) on Incoloy sheath
Resists oxidation and corrosion
Up to 1000°F (540°C) on stainless steel sheath
Watt densities to 400 W/in2 (62 W/cm2)
Maximum voltage up to 480V
Available in standard or metric sizes
Nickel-chromium resistance wire
Even heat distribution
Magnesium oxide insulation
High dielectric strength & faster heat-up
Glue guns and Wax pots
Heating of gases and liquids