Glass tube sealing lamp

Mon, 27 Jul 2026 10:19:42 +0800

Getting Your Voltage Right for Glass Tube Sealing

If you’ve ever tried to seal glass tubes, you know the drill. You need a very specific kind of heat—enough to get a clean melt, but not so much that you crack the substrate. But here is where things usually get messy: the power supply. If you’re moving equipment across borders or upgrading a plant, voltage becomes a nightmare. There is nothing quite as frustrating as plugging a 110V lamp into a 480V system and watching it pop instantly. It’s a waste of time and money. That’s why we build our infrared lamps to match whatever grid you’re actually using, whether that’s 110V, 480V, or 575V. Why the voltage actually matters It isn’t just about a number on a label. Voltage changes how the lamp is actually built—from the thickness of the filament to the size of the tube. When we go with high-voltage setups (like 480V or 575V), we can hit high wattages without needing a massive amount of current. This is a huge win for your control cabinet. You don’t need thick, bulky wiring taking up all your space. Imagine you need 2000W of heat in a tight spot. A high-voltage config keeps the current low, which means your leads won’t overheat and melt. It just runs cooler and safer. Quartz and Heat We stick with high-purity quartz. Why? Because standard glass just can’t handle the “thermal shock” when you’re cycling heat on and off rapidly. Quartz takes the hit and keeps going. Depending on what you’re sealing, we can tweak the coatings to change how the heat hits the glass. Shortwave lamps are great when you need to hit the target fast. Longwave lamps are better for when you need the heat to soak in deeper. Just a heads-up: make sure your cooling system can keep up. A high-wattage tube puts out an incredible amount of heat. If your airflow or water-cooling isn’t ready for it, you’re going to warp your lamp holders. Making it fit Nobody wants to spend a whole afternoon fighting with a part that “almost” fits. We offer a bunch of end-cap options—R7s or custom slide-ins—so these are basically drop-in replacements. The fit has to be tight. If there’s a gap, you get arcs, and arcs kill lamps. Plus, we customize the length and voltage from the start. That way, you can ditch those clunky step-down transformers that eat up floor space and inevitably break down after a few years. It’s just simpler.

Sealing on Infrared Quartz Heating Lamps

Glass tube sealing lamp

Getting Your Voltage Right for Glass Tube Sealing