Introduction
We built this infrared halogen heater for one specific job: cutting through thick glass. The kind that makes standard preheating methods throw in the towel. Our goal was simple—get heat into the cutting path fast. That way, the diamond wheel has an easier time, stays sharp, and lasts way longer. This isn’t a do-everything heater. It’s a focused tool, designed to put intense heat exactly where you need it.
The Power Behind the Cut
When you’re working with thick glass, heat needs to get deep—and fast. That’s why we set the unit at 400V and 2500W. It packs a ton of power into a compact 300mm tube. That voltage choice keeps the current lower, which means less voltage drop over distance. The result? A heating profile that stays steady. And the 300mm length? It’s a perfect match for a standard cutting window. You get a clean, even line of heat—without overheating the rest of the glass.
What It’s Made Of
We chose a quartz tube for a reason. It handles rapid temperature changes without cracking, and it’s excellent at transmitting infrared heat. Inside, the halogen filament runs hot enough to produce shortwave infrared—the kind that penetrates deep into the glass, not just on the surface. A reflective coating on the tube pushes all that energy forward, so you get maximum intensity right on the cut line. Installation is straightforward, thanks to the R7s connector. It’s a reliable industrial fit for this tube size, snaps in quickly, and ensures a solid connection. That means less downtime and fewer frustrating hot spots from loose contacts.
How It Works for You
Here’s how it plays out on the job. You position the heater to pre-heat the cut line just before the wheel touches the glass. The intense infrared energy softens the glass along that path, so the wheel doesn’t have to work as hard. The payoff? Your cutting wheel wears down slower, and you get fewer tiny chips—especially on those thick sections. Now, one thing to keep in mind: with 2500W of power, you need proper cooling and a solid electrical setup. Plan for heat dissipation and choose the right wire gauge. This isn’t a general-purpose tool. It’s built for thick glass, and when you use it for that, it cuts cycle time without burning out your wheel.