What is the difference between a heating element and an electric radiant heating element?

We often receive calls from customers asking about electric heating radiant tubes. Many people might think that manufacturers of electric heating tubes also produce them, but that's not the case. "Electric heating tube" is simply a term, like household terms such as bedding and tables-they are different products. Similarly, "electric heating tube" and "electric heating radiant tube" are the same. Below is a brief explanation of the difference between electric heating tubes and electric heating radiant tubes.

An electric heating tube (heating tube) uses a metal tube as its outer shell, filled with a high-resistance heating alloy wire as the heating material. The space between the heating wire and the stainless steel shell is tightly filled and compacted with high-purity magnesium oxide, which has good insulation properties and a high thermal conductivity. Electric heating tubes are characterized by high power, high thermal efficiency, and rapid heat dissipation. They are commonly used in plastic packaging, small mold heating, analytical instruments, the cigarette industry, various water tanks, oil tanks, heating of die-casting input channels, and heating for the cooling effect of various gas expansions.

An electric heating radiant tube (electric radiant tube) is a device that consumes electrical energy and converts it into heat energy to heat the material to be heated. The heating element is enclosed in a protective sleeve. After being energized, the heat is indirectly radiated to the furnace lining and the workpiece through the sleeve.

Electric radiant heating tubes are suitable for furnaces with protective atmospheres and corrosive atmospheres, such as continuous furnaces, drum furnaces, and pit furnaces.

Electric radiant heating tubes convert electrical energy into heat energy to heat materials. During operation, a low-temperature fluid medium enters the heating tube through a pipe under pressure. Following a path designed using the fluid thermodynamics principles of air-heated electric heating tubes, the medium travels along a specific heat exchange channel inside the heating element, carrying away the high-temperature heat energy generated by the heating element. This raises the temperature of the heated medium, resulting in the required high-temperature medium at the outlet of the heating tube.