On the floor, the Ergomodul 2 heating tunnel has zero patience for drift. When a halogen emitter starts to dim or cycle, preforms run cool on one side and end up thick on the other. You’re left with rejects, speed cuts, and that familiar scramble just to keep the line up. What matters, technically We build the Krones Ergomodul 2 heater bulb spare as a direct-fit halogen infrared emitter, with a quartz envelope. It’s matched to the machine’s watt density, voltage, and lamp geometry. The R7s base sits true in the holder, and the filament layout keeps the heat profile even across the tunnel zones. This isn’t a generic lamp. It’s calibrated to the Ergomodul 2 reflector and power feed, so you can run the same heating curve you set at commissioning. Why it works in stretch blow molding In stretch blow molding, the preform wall has to be in the right temperature band before it ever hits the blow station. Our emitter restores the original heat map, so you can hold setpoints without chasing hot and cold spots. You’ll see fewer pinholes and off-spec bottles, faster warm-up after changeovers, and output that holds steady at design speed. Over time, the stable spectral output also keeps energy use predictable, because the heater isn’t having to work harder to make up for fading output. A few shop-floor notes Installation is straightforward, but treat the quartz like glass. Keep the emitter free of oils, and wipe it only with a lint-free cloth dampened with isopropyl before mounting. Check the holder alignment and torque to spec. Misalignment changes the focus and drives uneven heating. Plan replacement around scheduled maintenance windows — even high-quality quartz emitters have a finite life. Match the voltage and wattage to the machine label, and verify the connector type before you order.