Getting the Heat Right for Oversized Tempered Glass
If you’re tempering glass sheets over 2 meters, you know the struggle. Most off-the-shelf lamps just don’t cut it. You end up with these annoying cold spots between the heating elements, and in this business, a cold spot is a disaster. That’s why we build ultra-long infrared units. We design them to sit tight, side-by-side, so your glass sees one continuous wall of heat instead of a series of stripes. The trick to long-format heat You can’t just stretch a quartz tube and call it a day. If you do, you’ll deal with voltage drops. Basically, the ends of the lamp work harder than the middle. The result? Your glass bows. To stop that, we play around with the filament winding density. We tweak the wattage and voltage until the center of that 2-meter span is pumping out the exact same energy as the edges. It’s about balance. The nitty-gritty of the build We use high-purity quartz because it can handle the shock of ramping up and down without snapping. But the real magic is in the layout. Since these lamps sit so close together, we had to rethink the end-caps. We made sure the wiring stays out of the way so the electrical connections don’t mess with the heat zones of the lamp next to it. It just works. A few things to keep in mind Look, there’s a trade-off here. Longer lamps give you that perfect, uniform heat, but they’re a lot more fragile. A 2-meter tube is way easier to break during installation than a short 500mm one. Check your support rails. If your frame has even a tiny twist or isn’t perfectly level, it puts stress on the quartz. One wrong move and—crack. Also, keep an eye on your power. These arrays pull a massive amount of current. Make sure your panels can handle the load, or you’ll be spending your morning resetting breakers every time you ramp up.