Gold coated infrared lamp

Sat, 25 Jul 2026 02:58:28 +0800

Getting Your Glass Tunnel Heat Right (Even at 2 Meters)

If you’re trying to heat a glass tunnel that stretches over two meters, you quickly realize that just buying “longer lamps” doesn’t work. It’s not that simple. When you’re dealing with a span that big, you start seeing cold spots. One section of the glass is perfect, and the next is just… off. We build our units to fix that. The goal is a steady, reliable heat profile from one end to the other. No surprises. Why the gold coating matters Here’s the thing about standard quartz lamps: they waste a ton of energy. A lot of that heat just floats away via convection, heating up your kiln housing instead of your product. We solve this by adding a thin layer of gold to the quartz. It sounds fancy, but it’s practical. The gold acts like a mirror, pushing the infrared energy forward and straight into the glass. You get a much harder hit of heat and your ramp-up times drop significantly. It’s faster. Much faster. The headache of the 2-meter stretch Designing something this long is a bit of a balancing act. When a tube gets to two meters, gravity starts to win—it wants to sag. If it bows under high heat, you’re in trouble. That’s why we’re obsessive about the quartz wall thickness. It stays straight, even when it’s glowing. But you also have to keep an eye on the power. A unit this size pulls a massive amount of current. If you just plug it in and pray, you’re asking for burnt-out wiring. We usually suggest splitting the load across a few different circuits to keep things safe. And a quick tip: if you’re packing these lamps in tight, make sure your cooling fans can actually handle the heat buildup at the ends. If the air can’t move, the hardware suffers. Getting them installed We designed these to be drop-in replacements. They’re meant to sit end-to-end, tight against each other. This gets rid of those annoying gaps that usually cause uneven curing or weird spots in your tempering. One last thing—keep it clean. Gold-coated lamps are a bit picky. If your shop is full of heavy oils or thick dust, that coating will degrade faster than it should. Keep the environment tidy, and these things will last you a long time.

Gold on Warm IR Heating Zones

Gold coated infrared lamp

Getting Your Glass Tunnel Heat Right (Even at 2 Meters)