Annealing glass with infrared lamps

Fri, 24 Jul 2026 12:42:23 +0800

Stopping the Cold-Spot Headache in Tight Furnaces

Let’s be honest: glass bending furnaces are usually crammed into spaces that are way too small. When you’re fighting for every inch of floor space, those standard, off-the-shelf infrared lamps just don’t cut it. They either don’t fit, or you’re left with annoying cold spots that ruin the glass with optical distortions. It’s frustrating. We deal with this by ditching the “standard” approach. Instead of making you fit your machine around a lamp, we build the lamp to fit your machine. Making it fit (exactly) If you’ve got a support beam in the way or a curved track that makes a straight lamp impossible, we just work from your CAD files. We’ll hit that exact millimeter. But it’s not just about the physical fit. It’s about the heat. By shortening a tube but keeping the wattage high, we can concentrate the heat right where the glass needs to soften. This lets you shrink the whole heating zone without losing power. The trade-offs you should know about Now, there is a catch. When you shrink a lamp but keep the heat high, that filament is going to run a lot hotter. You get a massive punch of heat flux, but it puts more stress on the quartz. Because of that, you’ve got to keep an eye on your cooling. Make sure your ventilation can handle the extra ambient heat around the housing, otherwise, you’re looking at burnt-out connectors. It’s a simple fix, but one you can’t ignore. Getting it running We ship these with industrial-grade connectors, so they just drop right in. You won’t have to spend your weekend rewiring the entire control cabinet. The real win here is that by matching the lamp’s shape to the inside of your furnace, you kill those gaps that cause uneven heating. The glass hits its softening point uniformly across the whole surface. Even in a cramped setup, it just works.

Lamps on Pure Quartz Infrared Heat

Annealing glass with infrared lamps

Stopping the Cold-Spot Headache in Tight Furnaces