On the glass line, heat is more than temperature. It’s timing, uniformity, and repeatability—every time. When the heater underperforms, you get bow, optical distortion, and temper stress fractures. When it overshoots, energy costs climb and coil life gets cut short. The modular heater controller is built to hold the thermal profile steady in high-power zones, where quartz short-wave elements run hard and the process window is tight. What matters under the hood We match each zone to the load: 240 V or 480 V inputs, modular power blocks that scale from 6 kW to 36 kW, and fast-response SCR control that holds setpoint within ±1% even as glass emissivity shifts. The controller uses closed-loop feedback from thermocouples placed near the glass surface, not the heater housing, so you’re controlling what actually matters—glass temperature. Heat-up is quick with minimal overshoot, and the power factor stays high, which keeps reactive demand in check. Why it holds up in real processes In tempering, bending, lamination, and coating drying, the controller delivers repeatable ramps and soaks that keep stress low and yield high. Energy use drops because the controller avoids wasteful idle heat and cuts standby losses. In one high-throughput tempering cell, we measured a 12–18% reduction in kWh per square meter while maintaining consistent surface compression and fewer breakages at the quench. Cycle-to-cycle consistency improves, so you see fewer rework sheets and less scrap. What to plan for on the floor The modular layout fits both retrofits and OEM builds, but wiring and shielding have to be done right. You’ll need to dedicate a control cabinet slot and run proper thermocouple extension wire to keep noise out. Panel clearance matters. Keep airflow around the modules so components stay cool and service life stays long. Plan for routine calibration every 6–12 months to keep accuracy tight.