The difference between cartridge heater and double-ended heater

Mar 15, 2021

The difference between cartridge heater and double-ended heater


Electric heaters are widely used in the industrial field and can be seen almost everywhere. So today we will talk with you about the difference between cartridgeheater and tubular heater?

1. Different structure

The cartridge heater is an electric heater element with one end of the wire. It has good insulation properties and is filled with high-purity magnesium oxide powder with high thermal conductivity. It has small size, large power, fast heat dissipation, and high thermal efficiency. Features.

The double-ended heater is an electric heater with two ends, with a metal tube as a protective shell (including stainless steel, copper tube, various imported steel materials), and a spiral high-quality electric heating alloy wire (iron-chromium-aluminum alloy wire) is evenly distributed along the central axis of the tube. , Nickel-chromium alloy wire), and tightly fill the gap part with crystalline magnesium oxide powder with good heat resistance, thermal resistance and insulation. The two ends of the nozzle are sealed with silica gel, and then processed by other processes.

1.2

2. Power design

With the same length and diameter, the power of the cartridge heater is greater than that of the double-ended heater, but in terms of service life, in the same environment and the same specification, the cartridgeheater has a longer service life.

Example: In the case of air dry burning, a cartridgeheater with a tube diameter of 16mm and a tube length of 300mm can achieve 550W, while the power of a double-ended electric heater with the same tube diameter and length can only achieve 300W. Therefore, the surface load of the cartridge  heater is higher than that of the double-ended electric heater.


The above is the difference between cartridge heater and double-ended heater.


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