Stop Killing Your Cutting Wheels on Thick Glass
If you’ve ever tried to score ultra-thick glass cold, you know the feeling. It’s a fight. There is so much friction and mechanical stress that the cutting wheel just takes a beating. Before you know it, the wheel is burnt out and you’re swapping it for another one. It’s frustrating and, frankly, a waste of time. We found a better way to handle this using medium wave infrared (MWIR) lamps. Here is the secret: most IR heat just hits the surface and bounces off, or it creates a weird heat spike right on top. But medium wave radiation actually sinks deeper into the glass. We aim that heat right where the cut is going to happen. It doesn’t melt the glass—that would be a disaster—but it softens the material just enough. It’s like the difference between trying to carve through a frozen block of butter versus one that’s sat out on the counter for a few minutes. The wheel just glides. To make this work, we align the emitter perfectly with the cutter head to create a small, hot “zone.” But you have to be careful. You can’t just blast it with heat. If the gap between the hot cutting path and the cold glass around it is too wide, the whole plate can just snap from thermal shock. It’s all about finding that sweet spot with the lamp’s distance and power. The payoff? Your tools actually last. Since the wheel isn’t fighting the glass every millimeter of the way, there’s way less abrasion. You aren’t stopping mid-job to replace a dead wheel, and the edges come out cleaner and more consistent. It takes a brutal, high-stress process and makes it feel controlled. It’s just a smoother way to work.