On the glass shop floor, heat isn’t just temperature—it’s control. The moment the furnace belt moves and the cycle clock starts ticking, uneven heating shows up fast: optical distortion, thermal stress, and scrap. We built the ruby glass infrared heating bulb to put repeatable, localized heat right where the process needs it, without leaning on convection that can create gradients across the glass. What matters, technically The ruby glass envelope is chosen for stable transmission in the near-infrared band, so the spectral output is clean and couples efficiently into glass. That means rapid, volumetric heating while keeping the surface temperature rise in check—exactly what you need when you’re running tempering and bending with tight schedules and even tighter tolerances. Each bulb is engineered for consistent emissivity and uniform radiant distribution, so the hot zone behaves predictably from one lamp to the next. Industrial ratings keep it running continuously on standard voltage supplies, and the form factor drops right into the ceramic holders and reflector assemblies you already use in glass processing equipment. Why it plays in tempering and bending In tempering and bending, you’ve got to hit the target temperature profile fast and hold it. The ruby glass IR bulb cuts the ramp-up window, trims soak time, and helps keep the thermal field stable across the glass. The payoff is fewer stress-related fractures, better optical quality, and output that stays consistent when the line is running flat out. You also save energy because the heat goes straight into the glass instead of heating the whole chamber air, and repeatability improves when the heating element behaves the same shift after shift. Here’s what to keep in mind Installation is straightforward, but alignment is where people get tripped up. Position and reflector geometry directly drive temperature uniformity, so set and verify the focal distance against your glass thickness and cycle profile. These bulbs run hot at the envelope, so respect clearances and insulation, and make sure your shop practices cover high-temperature components. Treat them as a matched set—swapping only one bulb in a zone can shift output and drift your process window.