Long life SWIR heater lamp

Wed, 01 Jul 2026 15:38:24 +0800

When the heating tunnel on your Sidel, Krones, SIPA, or Nissei ASB starts drifting, you don’t just lose heat—you lose predictability. Preform temperature variance goes straight into wall thickness swings, flash, and rejects. We built our long-life SWIR heater lamps to replace standard halogen and medium-wave quartz emitters with a heat profile that holds steady and repeats, so the line keeps running. What matters, technically SWIR lamps deliver dense output in the short-wave to medium-wave infrared band, matched to PET’s absorption peaks for efficient, through-thickness heating. Standard voltages are 120/240 V, with common terminations like R7s and G38, so the lamp drops into existing sockets and reflectors. The quartz envelope is built for thermal shock resistance, and the internal filament geometry keeps output stable over long runs. In practice, that means preform temperature stays consistent before stretch blow molding, with less drift across shift changes. On the blow molding floor, stability is the real win. Tighter temperature control cuts rejects from uneven stretching and reduces how often you have to re-tune after lamp changes. Energy use drops because the emitter comes up fast and holds setpoint with less cycling. Long lamp life means fewer maintenance windows, fewer spares on the shelf, and fewer unplanned stoppages—especially on high-speed lines where one lamp change can snowball into lost production. Here are a few things to keep straight. SWIR lamps run hotter at the surface than some alternatives, so check reflector condition and cooling airflow in the heating tunnel. Oxidized or misaligned reflectors can throw hot spots onto preforms. Also, verify your machine’s dimming range and control strategy. SWIR responds quickly, but the control loop needs to match the lamp’s response to avoid overshoot. If you’re running heavy colors or thicker walls, run a short pilot to fine-tune power density and dwell.

SWIR on Cozy Infrared Heating

Long life SWIR heater lamp