Fiber optic drawing heater

Sat, 27 Jun 2026 02:13:43 +0800

On the glass processing floor, the fiber drawing line doesn’t forgive uneven heat. A drifting temperature profile turns preforms into scrap, and a weak spot in the heating zone shows up later as a break under tension. We built our fiber optic drawing heater to keep the thermal field stable where it matters—right at the draw point—so you can run consistent diameters without chasing setpoints. The unit runs on a high-emissivity quartz element with short-wave infrared output, so response is fast and control stays tight. Rated at 24 kW at 400 V, the heater body fits standard ports and mounts as a drop-in replacement for most OEM modules. A focused hot zone cuts convection losses and holds a uniform temperature band across the preform neck, which lowers thermal stress and keeps glass viscosity predictable. Control interfaces take 4–20 mA and thermocouple feedback, so you can plug straight into existing PID loops and keep ramp rates repeatable job after job. In fiber drawing, that translates to fewer diameter excursions, fewer breaks, and higher yield from the same glass batch. The heater hits setpoint quickly, so changeovers are shorter and standby power is lower. Energy use drops because the heat stays where it’s needed, not bleeding into surrounding frames and insulation. For plants running multiple glass types, the stable thermal profile also makes qualification cleaner and cuts down on off-spec material. Plan the install with spacing and airflow in mind. This heater runs hot, and you need clearance around the quartz envelope to keep hot spots off nearby components. Match the mounting hardware and terminal arrangement to your fixture, or use our adapter plate for common draw towers. Expect the element to need replacement after sustained high-temperature cycles, but keep routine checks on the calendar and downtime stays predictable and short.

Drawing on Warm IR Heating Solutions

Fiber optic drawing heater