Out on the floor, a Sidel SBO blow molder running PET bottles lives and dies on repeatable heating. Let the preform temperature drift and you’ll see weak necks, crystallized shoulders, or parisons that blow out on you. The stock 1500W infrared heater lamp isn’t just a bulb—it’s the thermal anchor in the heating tunnel. What matters, technically The Sidel SBO 1500W heater lamp is a short-wave infrared halogen emitter built around a quartz tube. It’s engineered to match the SBO 1500W heating zone: 1500W at the specified voltage, the right filament geometry, and the OEM-spec R7s connector length and alignment. The quartz envelope gives you fast response, high radiant density, and stable output across the preform wall. We get consistent spectral output that keeps the heating profile repeatable, cycle after cycle. Why it fits the process In stretch blow molding, preform heating is the gate to output. This lamp restores the original, machine-matched heating curve, so you stop chasing hot and cold spots and inconsistent bottle weight. The payoff: fewer rejects, a stable stretch ratio, and line speed you can plan around. Energy use stays in line because the emitter heats on demand and cools quickly—no wasteful dwell. On 24/7 lines, the lamp’s geometry and connector fit mean less downtime when you swap it in. A few shop-floor notes Installation is straightforward, but treat the lamp carefully. Fingerprints on the quartz tube will cause hot spots and shorten life. Wipe it down with isopropyl alcohol, seat the R7s contacts firmly, and verify voltage at the terminal. Keep the reflectors clean and aligned, too. If the reflector drifts, the spot pattern shifts and the preform temperature goes off spec. You’ll get the best service life when the heating tunnel airflow and ambient temperature stay within the machine’s design window.