Technical Information: Precautions for Using Infrared Heaters

If you don't leave one side free during installation, the heater will deform into a bow shape.

Far infrared rays have linearity similar to light, making it difficult to heat the shaded areas of the object being heated. Typically, temperature increases through thermal conduction, but if that is not feasible, heating will need to be done while rotating the object. Far infrared straight heaters expand due to heat. For example, with a tube length of 1000 mm, at a surface temperature of 500°C, it expands by 7 to 8 mm, and at 600°C, it expands by 10 to 11 mm. Please maintain a distance from the furnace wall accordingly. The installation must allow one side to be free; otherwise, the heater will deform into a bow shape. The reflector should be made of stainless steel. While aluminum has better reflectivity, it is weak against heat and can oxidize. 【Notes】 ○ When closely arranging far infrared panel-type clean heaters, maintain a gap of at least 2 mm between cases. → Close contact can cause distortion due to thermal expansion. ○ When using three-phase power, design, arrange, and wire with balance in mind. ○ When using a leakage circuit breaker, ensure it has a leakage current of 100 mA or more. ○ Far infrared heating devices should not have a sealed structure; always provide an exhaust outlet. ○ Always ensure proper grounding. For more details, please contact us or download the catalog.

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