Out on the line, a hairline crack by an edge or a notch doesn’t care about shift change. If the heat isn’t even where you need it, stress goes all over the place and that crack starts moving. If the lamp takes too long to come up, the conveyor backs off and your yield drops. We built our infrared lamp for glass crack control to live with that reality—because you need repeatable thermal behavior, not a hunch. What matters under the hood It runs on near-infrared (NIR) emitters in a quartz envelope, giving you directional radiation that heats the glass surface without dumping heat into the surroundings. That means a uniform thermal field and tight control over the hot zone. Response is quick—full output in seconds—so you can shorten dwell without losing temperature stability. The emitters are matched to the absorption of soda-lime and low-e glass, so heating stays predictable across the thicknesses you run most. Output holds steady over long campaigns, and the housing is built for industrial duty with consistent focus and alignment. Why it holds up in production In tempering, bending, and lamination prep, a crack often needs localized heating to relax stress before the main thermal cycle. With uniform heat and fast response, the lamp gets the zone to target quickly, then holds without hot spots. That keeps crack extension from eating scrap, holds line speed steady, and trims energy use by cutting idle time and warm-up losses. The module drops into existing fixtures, so you can replace aging halogen or quartz units without reworking the station. Installation is straightforward, but alignment is the make-or-break. The lamp has to be positioned to match the glass path and the emissivity profile; otherwise you’ll get edge overheat or uneven gradients. Expect a short settling period after power-up while the thermal field stabilizes. For repeatability, stay within rated voltage and keep the focal path clean and cool—dust and convective heat will throw off the profile. Match the lamp to the machine footprint, and you get consistent crack control without throttling the line.