Stop Fighting Heat Fluctuations on Your SIG Blomax 10
If you’re running a SIG Blomax 10 or a similar SIPA rotary, you already know that power consistency is the only thing that actually matters in the oven. It sounds small, but a tiny 5% difference in wattage between your lamps is enough to mess everything up. Suddenly, you’re dealing with uneven preform heating, weird wall thickness, or that annoying pearlescence in your bottles. It’s frustrating. That’s why we make our replacement IR lamps as simple “drop-in” fixes. They match the original equipment specs exactly. No guessing. The actual science of it When you’re blowing PET at high speeds, “hot” isn’t enough. You need the right infrared wavelengths to actually get inside the material. If you throw in a lamp with the wrong voltage or wattage, you’ve just shifted your entire thermal profile. We spec our tubes to hit the exact requirements of the Blomax 10 so your PID controllers can just do their job instead of fighting a losing battle against inconsistent heat. How they’re built We use high-purity quartz glass because these machines put lamps through hell with constant thermal cycling. The filaments are calibrated for shortwave emission. This means faster heat-up times and better energy transfer to the plastic. We also use standard R7s or Sk15 connectors depending on your setup. Why? Because a loose fit leads to arcing, and arcing leads to a burnt-out lamp. It’s that simple. Real talk from the shop floor Using a power-matched lamp kills the “cold spot” problem during those heavy, high-volume runs. You finally get a stable heat footprint. But here is a pro tip: high-density IR output puts a massive load on your ventilation. If your cooling fans are clogged with dust or just dying, even the best lamp in the world is going to overheat your preforms. Do yourself a favor and check your airflow before you swap the tubes. Don’t waste new hardware on a choked oven.