Annealing glass with infrared lamps

Fri, 17 Jul 2026 02:49:19 +0800

Getting Glass Annealing Right (And Not Blowing Your Fuses)

Glass annealing is all about the heat. You need those thermal gradients just right to get rid of internal stress, or you’re looking at a lot of wasted material. We use shortwave IR lamps because they punch through the glass surface fast. But if you ask any plant manager, they’ll tell you the heat isn’t the hard part. The real nightmare? The power grid.

The Voltage Headache

Here’s the thing: you can’t just jam a 110V lamp into a 480V industrial line. It won’t work. Actually, it’ll just burn out in a heartbeat. That’s why we build our lamps to match whatever voltage your site is actually running. If you’re running a small lab setup, 110V is usually fine. But once you move to those massive annealing tunnels, you’re looking at 480V or 575V. Why the jump? Because higher voltage lets us push way more wattage through the filament. It means we don’t have to use those thick, chunky cables that are a total pain to route through a tight machine. Plus, if you’re shipping a machine across the border to Canada or the US, you’ve got to spec your lamps for the local grid. We handle all three standards, so you can just drop them in and go.

Lamps on Efficient Infrared Warming Systems

Annealing glass with infrared lamps

Getting Glass Annealing Right (And Not Blowing Your Fuses)

The Voltage Headache