Gob heating infrared lamp

Fri, 03 Jul 2026 14:09:12 +0800

On the tempering line, it all starts with the gob. If that glass hits the furnace with uneven temperature—or a cold spot—you see it immediately: bow, warp, fractures. The sheet gets scrapped before it even gets a chance. We built our gob heating with infrared lamps to stop that kind of waste at the source. What matters, technically We lean on short-wave infrared quartz emitters. They throw direct radiation into the gob, heating the surface fast without wasting time heating the air. Response is almost instant, so the lamp keeps up with line speed and changing gob sizes without overshoot. The heating profile stays repeatable because emitter output is stable and the reflector geometry gives you a clean, defined thermal footprint. Control is straightforward—4-20 mA or 0-10 V inputs—and the lamp body is specced for industrial voltages and the grit of a harsh shop floor. In practice, the gob hits target temperature with less dwell, less thermal lag, and fewer swings from cycle to cycle. Why this works where it counts Tempering demands tight thermal control the moment the gob leaves the forehearth. We preheat the gob so the furnace can run at a stable temperature, which cuts down stress and optical distortion. Fast response also keeps high-throughput lines honest. When spacing changes, the heating window stays consistent. Energy use drops because the heat is delivered on demand, not squandered on idle convection. The payoff: fewer rejects, more consistent flatness, and a furnace that runs calmer. The details that keep it honest Infrared is line-of-sight. Keep the emitter window clean and aligned—dust and scale will throw your heating pattern off. Match the lamp to the gob size and travel speed. We size the active zone so you don’t fight edge cooling. For full integration, confirm mounting, airflow, and power connections to match your line layout.

Gob on Essential IR Heating Items

Gob heating infrared lamp