Stopping the Crack: Getting Heat Right in Tight Spaces
There’s nothing worse than finishing a piece of glass only to have it shatter because the temperature dropped too fast in one spot. It happens. When thermal gradients get too steep, the glass just gives up. The problem is that most bending furnaces are cramped. They aren’t designed with much breathing room. If you try to shove a standard, off-the-shelf infrared lamp into those tight gaps, it usually doesn’t fit. Or worse, it fits, but it leaves “cold spots” that ruin your work.
Making it Fit (Exactly)
We don’t do “close enough.” If your furnace chassis won’t take a standard 500mm or 1000mm tube, we just build a lamp to your exact millimeter. We can even shape the lamps to follow the curve of your glass. This kills the “shadow effect”—that annoying problem where some parts of the glass get blasted with heat while others stay cold.It’s about wrapping the heat around the piece, not just firing it from one direction.
The Trade-off: Power vs. Space
Here is the tricky part. When you shrink a lamp to fit into a tiny corner but keep the power high, you’re packing a lot of heat into a very small area. The upside? Your ramp-up times are incredibly fast. But there’s a catch. All that concentrated heat raises the ambient temperature inside the housing. You’ll need to make sure your cooling fans and materials can handle the sweat, otherwise, you’re just going to burn out your fixtures.
No Rewiring Nightmares
Custom lamps shouldn’t mean a weekend spent ripping out cables. We match the connectors and wiring to whatever control board you’re already using. You just drop them in and get back to work. By placing the heat exactly where the glass is thickest, you stop the internal stress from building up. You get a smooth, consistent temperature across the whole piece, no matter how awkward or tight the inside of your furnace actually is.