Cutting through ultra-thick glass is a nightmare for your equipment. If you’ve ever tried to score a cold, thick slab, you know the feeling. The glass just fights back. It resists the blade, which leads to those annoying chips and means you’re swapping out cutting wheels way more often than you’d like. We found a better way to handle this: high-penetration infrared (IR) heating lamps. Instead of fighting the glass, we target the exact path where the cut needs to happen. How it actually works Here’s the thing about shortwave IR radiation—it digs deeper into the glass than your average heat source. We aim that energy right at the score line. It doesn’t melt the glass (obviously), but it does take the edge off the internal stress and softens the material just enough. When the cutting wheel hits that pre-heated path, it doesn’t have to struggle. It just glides. The gear and the gotchas To get this right, you need lamps with high wattage and a very specific focal length. You want a tight, concentrated beam. If the heat bleeds too far into the rest of the plate, you risk thermal expansion, and that’s where things get messy. We usually go with quartz-halogen tubes because they can handle the heat needed to get deep into the glass. But a word of warning: these things runhot. If your cooling system isn’t up to the task, you’ll end up warping your mounting brackets or frying your wiring. What this means for your shop The best part? Your tools stop taking a beating. Because the wheel isn’t fighting a wall of cold, hard glass, the blades last significantly longer. That means way less downtime spent swapping tools. Plus, the break is just cleaner. You get a smooth, consistent cut all the way through the slab without those jagged, ugly edges you get when cutting cold.