Tungsten filament IR lamp

Thu, 02 Jul 2026 05:13:50 +0800

On the tempering line, the furnace ramps fast—glass has to hit the target temperature evenly. If there’s even one cold spot, you’ll see optical distortion, and worse, you’ll get spontaneous breakage after cutting. Standard heaters often can’t keep the profile uniform across the width, and once you start running thick low-e coatings, you spend more time chasing setpoints than running at rate. What matters, technically Tungsten filament IR lamps throw short-wave infrared energy with quick response, so they can keep up with the fast thermal cycles tempering and bending furnaces demand. The filament geometry is chosen to shape the radiant field, giving you a more even heat profile across the sheet and cutting down edge-to-center thermal gradients. Quartz envelopes handle thermal shock, and the package is compact—fits OEM module footprints with the same mounting centers and terminal layout—so you can swap them in without redesigning the machine. Output stays stable over long runs; we’ve got units that have logged 5,000+ hours with less than 5% output drop. Why it plays in our world In tempering, these lamps help you hit quench-ready temperature faster, so the cycle shortens and throughput goes up without pushing the furnace past its mechanical comfort zone. In lamination, the heat gets into the EVA/SGP interlayer without scorching the surface, so you see fewer bubbles and less haze. On coating lines and in insulating glass sealing, the fast response tightens dwell control—adhesion becomes repeatable, and the seal is tighter. Energy use drops because the heat goes where it’s needed, not lost to convection and oversized elements. A few shop-floor notes These lamps don’t like voltage transients; they need clean, matched power. Cold starts bring a bit higher inrush current, so double-check your contactor and wiring ratings. Surface temperature is high—keep shielding and interlocks in place. Running them in a dry, clean environment stretches quartz life and keeps output consistent.

Filament on Professional Patio Heating

Tungsten filament IR lamp