Cutting ultra-thick glass is basically a wrestling match with a material that doesn’t want to budge. If you try to drag a cutting wheel through a thick slab cold, the stress on that wheel is brutal. It’s a fight. That’s why we use shortwave infrared (IR) lamps. Instead of fighting the glass, we soften it right where the cut happens. Here is the trick: most heat lamps just bake the surface, which doesn’t do much for a thick piece of glass. But shortwave IR is different. It actually sinks deep into the material rather than just bouncing off the top. By targeting the cutting line, we create a little “sweet spot” of heat. It drops the viscosity of the glass just enough so the wheel doesn’t have to work nearly as hard. And your tools will thank you. When you cut cold, the wheel has to practically gouge its way through. You get chipping, and your cutting edges burn out way too fast. But with that focused beam of heat, you’re creating a soft path. The wheel just glides. We’ve seen this make cutting wheels last significantly longer because the thermal energy is doing the heavy lifting, not the metal tool. But you can’t just crank the dial to ten and call it a day. If you get the glass too hot, it’ll warp or—even worse—shatter from thermal shock. It’s a balancing act. You have to sync the lamp’s power with how fast the cutting head is moving. Move faster? You need more juice. Plus, you’ve got to keep an eye on your cooling system. Those lamps put out a lot of heat, and you don’t want your machine frame cooking while you’re working.