Sidel preform temperature sensor

Tue, 23 Jun 2026 15:40:08 +0800

On a Sidel stretch blow molding line, preform heating is the tightest loop in the whole process. If the heating tunnel starts to drift, you’ll see inconsistent wall thickness, flash, or weak necks show up fast. You need a preform temperature sensor that picks up the actual surface temperature—and does it quickly enough to keep the heating profile locked in. What matters, technically We build the Sidel preform temperature sensor around short-wave infrared emitters—typically quartz halogen lamps with a spectral output matched to PET absorption. The core requirement is repeatable power density and fast response. In practice, that means spec’ing lamp wattage and length to match your Sidel heating tunnel geometry, with standard R7s connectors so replacements are quick. The sensor itself is tuned to read surface temperature in milliseconds as the preform rotates, so the controller can adjust zone power on the fly instead of waiting for the next cycle. Why this pairing works on the line When the lamp and sensor are matched properly, you get tighter temperature control across the preform wall, and the heating profile holds steady even when line speed changes. That means fewer rejects from thickness variation and more consistent bottle weight. Energy use drops because you stop overheating zones just to compensate for lag. And because the lamps and sensor are dimensioned to OEM tolerances, you can swap them during a short maintenance window without having to re-map the entire oven. A few practical notes Infrared heating is sensitive to distance and reflector condition. Keep lamp-to-preform spacing within the specified window, and check reflectors for oxidation and dust buildup. Ambient temperature and cooling airflow also affect emitter life—keep the tunnel clean and dry, and you can expect stable output over thousands of hours. If you’re running dark or opaque preforms, run a quick trial to confirm the spectral match and power density before you roll it out across the line.

Temperature on Ultimate IR Home Heating Comfort

Sidel preform temperature sensor