Getting Your Infrared Lamps Right for Any Power Grid
Glass annealing is a finicky process. If your thermal gradients are off, you’re left with internal stresses and broken glass. The real headache starts when you move a production line. Maybe you’re shifting things from a US plant over to Canada or Europe. Suddenly, your heating elements don’t play nice with the local grid. That’s why we build our infrared lamps to adapt to where you are. You shouldn’t have to drop a fortune on massive transformers just to get your line running.
The Deal with Voltage and Heat
We build our lamps for 110V, 480V, and 575V. But this isn’t just about making sure they plug in. It’s about the current. If you run a lamp at 110V, it’s going to pull a lot more amperage to hit the same wattage as a 480V unit. Going with higher voltage makes things easier on your wiring. You can use thinner cables across those long heating banks, which keeps your electrical footprint small. One heads-up, though: higher voltage means you have to be careful with your insulation. If it’s not rated for the load, you’re looking at a risk of arc-over.
How They’re Built
We use quartz envelopes for our lamps. Why? Because they let shortwave radiation pass through easily. The heat doesn’t just sit on the surface; it soaks deep into the core of the glass, and it does it fast. We also offer a bunch of different connector options. We want these to be simple drop-in replacements for what you already have. No hacking, no stressing.
Keeping it Consistent
In a glass annealing lehr, consistency is the only thing that matters. If your lamp doesn’t match your local voltage, you’ll end up with “cold spots” or lamps that burn out way too early. To stop that, we customize the filament length and the winding. Whether you’re on 110V or 575V, the heat density per inch stays exactly the same. Just make sure to double-check your control system’s SCRs. They need to be able to handle the specific voltage of the lamps. If you mismatch the lamp and the power supply, you’re either going to get zero heat or a blown filament in a matter of minutes.