Trying to cut through ultra-thick glass is a nightmare for your equipment. There’s just so much friction and stress on the cutting wheel that if you try to score it cold, you’re basically asking the wheel to burn out. It’s a grind. To stop that from happening, we use high-penetration infrared (IR) heating lamps. Instead of heating the whole slab, we aim the heat exactly where the cut is going to be. The secret is in the heat. Most heaters just warm up the surface, which doesn’t do much for a thick piece of glass. We use short-wave IR radiation because it actually sinks deep into the material. Think of it as “softening” the path. We aren’t melting the glass—that would be a disaster—but we are lowering the internal tension. It makes the glass feel more “inviting” to the wheel. You’ll notice a much cleaner break and, more importantly, the tool doesn’t fight you nearly as much. The gear we use We go with quartz-halogen tubes. We need high power density so the heat hits the core of the plate before the cutter even touches it. The quartz keeps the lamp from warping under the heat, and the halogen cycle keeps the filament from burning out too fast. One quick warning: your power supply has to be spot on. If your wattage or voltage is off, the heat won’t penetrate deep enough. You’ll end up right back where you started, struggling with cold glass. What actually happens on the shop floor Adding an IR pre-heater is a lifesaver for your wheels, but it does add a new wrinkle: thermal gradients. If you go too aggressive with the heat and don’t cool it down properly, the glass can just snap on its own. It’s a balancing act. You have to get the distance between the lamp and the glass just right, and your cutting head can’t move too fast or too slow. Also, keep an eye on your cooling system. Those lamps put off a lot of heat, and if your housing isn’t vented, you’re going to fry your electronics.