Getting Glass Heat Right When Space is Tight
Let’s be honest: standard infrared lamps are great until you actually try to fit them into a weirdly shaped bending furnace. If your layout is cramped or the heating zone looks more like a puzzle than a rectangle, off-the-shelf tubes just don’t cut it. You end up with “dead zones”—cold spots that mess up your glass—simply because the lamp doesn’t fit the space. That’s why we just build them to fit. Working around the squeeze When your furnace interior is tight, you can’t exactly knock down a wall to make more room. You have to make the heat source adapt to the machine, not the other way around. We build these lamps down to the millimeter. The goal is to make sure the heat hits the glass evenly, everywhere. We stick with short-wave infrared because it punches through the glass quickly. Plus, you don’t need a massive gap between the lamp and the workpiece for it to work. The nitty-gritty on custom shapes Customizing isn’t just about cutting a tube to length. We also tweak the wattage and voltage so everything plays nice with your existing power rails. Here’s a trick: if we put higher wattage into a shorter tube, we get way more heat density. That means you hit your target temperatures faster, even in a tiny footprint. We use high-purity quartz because it can take the thermal shock without cracking. And if your machinery has curves, we bend the tubes to match. But we have to be careful here. If the bend is too sharp, you get hot spots on the filament, and that’s a fast track to a burnt-out lamp. Installing and the “catch” We offer a few different connector options so these just slide right into your current setup. The wiring is the easy part. But here’s the thing you need to watch out for: when you cram a lot of heat into a small space, your cooling fans have to work overtime. If you push for maximum wattage in a tiny area, the air around the furnace is going to get hot. Fast. Just make sure your ventilation can keep up. Otherwise, you’ll be tripping thermal cut-offs all day, and nobody wants that.