
On an ADS stretch blow molder, the heating tunnel is where the cycle is won or lost. If an infrared lamp starts to drift, preforms run cold on the shoulders and hot on the body. Suddenly, you’re chasing rejects instead of protecting OEE. We build ADS-compatible infrared replacement lamps to get that original heat profile back—without guesswork. What matters, technically, is that the emitter matches the ADS tunnel geometry. Quartz tube. Short-wave halogen element. Rated 2400–3000 W at 230 V, with a stable 0.90–0.95 emissivity window. Terminals line up to the OEM connector—R7s base, 200 mm center-to-center—so it drops straight into the existing reflectors and holders. No mods. Fast thermal response gets you warmed up in under 60 seconds, and tight filament geometry keeps the heat band consistent across the preform wall. Here’s why it works in practice: when the lamp is right, preform heating repeats shot after shot. That means fewer pinholes, cleaner biaxial stretch, and less neck crystallization on heavier designs. You also see energy draw come down, because the reflector-emitter match cuts waste heat. Lamp life stretches to 5,000+ hours, with less than 5% output decay. Downtime drops, too—swap the lamp during a scheduled heat-soak window, and the line is back on spec without retuning the whole tunnel. A few things to keep straight. Match lamp wattage to the zone and the preform. Throwing in a higher-wattage lamp to chase heat will scorch thin walls and push blow pressure up. Always clean the reflector at every lamp change, and confirm the socket isn’t oxidized—high resistance at the contact creates voltage drop and uneven heating. And if your ADS line runs PET and PP, verify the emitter spectrum and temperature limits. The same lamp won’t cover both material windows.