Getting Your Heat Exactly Where It Needs to Be (Even in Tiny Spaces)
Sealing glass tubes is all about getting those thermal zones just right. But here’s the problem: if you’re working with a non-standard bending furnace, off-the-shelf heating lamps usually just… don’t fit. You end up with these awkward dead zones where there’s no heat, or worse, the lamp is literally hitting the machine frame. It’s frustrating. That’s why we stop trying to force a square peg into a round hole. We just build the infrared quartz lamps to fit your specific layout.
Why Custom Shapes Actually Matter
Usually, you’re forced to design your whole machine around whatever heater you can buy. We do it the other way around. By bending the quartz into U-shapes, spirals, or specific arcs, we can cram more heat into a much smaller space. It means you get more wattage without needing a giant, oversized furnace. Plus, since the heat source is closer to the glass tube, you stop wasting energy on radiative heat loss. It’s just more efficient.
The Tricky Part (The Physics)
Bending quartz isn’t as simple as bending a piece of wire. It changes how the lamp actually works inside. If you’re not careful with the filament tension during the bend, the lamp will burn out way too early. And if the radius is too tight? The tungsten filament might actually touch the quartz wall. That’s a recipe for disaster. We use precision centering jigs to make sure that doesn’t happen. One thing to keep in mind: these custom shapes hit hard. They concentrate heat aggressively. If you go for a high-wattage lamp in a tight bend,**make sure your cooling fans can keep up.**If the ends of the lamp overheat, the seals will fail. Simple as that.
Getting It Running
We design these to be drop-in replacements. Whether you need a specific length to clear a conveyor belt or a weird arc for a sealing head, we match the electrical specs to whatever power supply you’ve already got. You just wire it up, tweak your PID controller to get the temperature where you want it, and you’re good to go.