Heating drift is the quiet saboteur on the blow molding floor. You know the signs: bottle weight that wanders, off-color, and a sudden spike in scrap when the heating tunnel can’t hold its temperature. On a Krones Contiform stretch blow molder, the stock IR radiator has to land in a tight thermal window—fast, stable, and repeatable—or you’ll pay for it in lost line speed and changeovers that drag. What matters, technically We built this Krones Contiform IR radiator as a true OEM-match replacement, matched to the Contiform heating tunnel geometry and power profile. The white coating on the quartz tube shifts the emissivity curve, giving you a flatter, more uniform heat pattern across the preform neck and shoulder—exactly where blow molding stability starts. Output is tuned to the machine’s standard heating window, so you get predictable absorption without chasing setpoints. It uses the same R7s connector interface and mounting dimensions as the original, so you can swap it in without modifying brackets or rewiring the carriage. In practice, that means less downtime on the replacement and fewer rejects tied to hot spots. Why it works on a Contiform line On a Contiform, the heating section has to keep up with high-speed indexing and consistent preform dwell. This radiator’s fast thermal response helps you tighten control over the heating curve, which translates into more consistent stretch ratios and fewer pinholes. The white coating also stays cleaner, cutting down on carbon buildup that dulls output and pushes you to shorten maintenance intervals. Energy use stays in line because the emitter delivers targeted infrared energy—no wasted heat on the tunnel frame or surrounding components. For you, that means stable output at line speed, fewer rejects, and maintenance windows you can plan around. A few practical notes This is a direct-fit replacement for Krones Contiform machines, but double-check the voltage and wattage label on your specific model and the age of the heating carriage. Some older carriages have reflectors and wiring that are past their prime, and that can hurt temperature uniformity after installation. For the best result, pair the new radiator with a clean reflector and confirm calibration after the first 24 hours of running.