On the floor, the tempering furnace and bending line don’t tolerate uneven heat. When the thermal profile wanders, you get bow, optical distortion, or glass that cracks under stress. That’s why the heater control panel is the anchor point for repeatable, safe output. What matters under the hood We set the panel up for fast, stable heating that keeps pace with industrial glass schedules. The ramp hits 10°C/s, so the zone gets to setpoint quickly without overshoot. Temperature uniformity across the hot zone holds at ±2°C, which cuts the thermal gradients that drive warp and stress. Power density is tuned to 2.5–4.0 W/cm², sized to your emitter length and glass thickness so the energy goes into the glass, not the air. The panel runs short-wave quartz emitters, with PID control and SSR switching for clean power delivery, plus thermocouple feedback and interlocks to keep things safe. Why this matters on the line In tempering, bending, and lamination preheat, the heater panel directly impacts yield and cycle time. When heat is fast and even, you hit the same thermal history run after run. That keeps optical quality consistent and cuts scrap from thermal shock. Energy use drops because you avoid long soak times and reduce parasitic losses from convection and radiation drift. On insulating glass sealing and coating drying, tight temperature control protects edge seal integrity and the cure profile, so the line keeps moving. A few shop-floor notes The panel is built to drop in to common furnace zones, but the emitter bank, busbar spacing, and thermocouple type have to match your machine footprint. Clearance and airflow around the enclosure matter—keep the electronics cool when the environment runs hot. Match the supply voltage and load rating to the heater, or you’ll get nuisance trips and shorten component life.