Near IR and Far IR are different parts of the infrared spectrum. Near IR has shorter wavelengths and is often associated with sensing, imaging, and high-intensity short-wave heating, while Far IR has longer wavelengths and is more associated with thermal radiation and gentler long-wave heating. For industrial heating, the more practical question is not only Near IR vs Far IR, but which emitter type—short wave, fast medium wave, medium wave, carbon, or long wave—matches the material, heating distance, process speed, and temperature requirement. This guide explains the difference between Near IR and Far IR and how infrared wavelength selection is used in industrial drying, curing, printing, PET blow molding, plastic processing, and heating modules.
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