Getting Your Krones Contiform S Back Up to Speed
If you’re running an older blow molding machine, you probably know the frustration of the “oven bottleneck.” It’s a pain. Your preforms just aren’t hitting the right temperature consistently, and suddenly your cycle speed tanks. You’re losing money every minute that machine slows down. We build our replacement IR bulbs to fit the Contiform S footprint perfectly. We don’t just guess at the specs; we focus on heat density and spectral output so you can actually get your production capacity back. The nitty-gritty on power Here is the thing about IR lamps: it’s all a balancing act between voltage, wattage, and the length of that quartz tube. For the Contiform S, we stick with high-wattage short-wave emitters. Why? Because short-wave radiation punches through PET plastic way faster than the long-wave stuff. We use higher voltage ratings to keep the current draw low. This is huge for anyone running 24/7 because it keeps your wiring from overheating. Just a heads-up: if you crank the wattage too high to chase more speed, make sure your oven’s ventilation can actually handle the heat. If it can’t dump that extra warmth, you’re risking your electronics. Built to last (and fit) Nobody wants to replace bulbs every few weeks. We use heavy-wall quartz glass so the tubes don’t bow when things get hot. Plus, the filaments are halogen-cycled. This stops the tungsten from evaporating too quickly, which means the lamp actually lasts. And then there are the connectors. We use standard R7s or Sk15 because they lock in tight. A loose connection is a nightmare—it creates resistance, which leads to arcing and burnt-out sockets. Our connectors are designed to handle the natural expansion that happens when the lamp hits full heat. What this means for your floor Swapping out old, tired bulbs for calibrated emitters basically resets your oven’s heat profile. You get a much more even temperature across the preform body. The result? Way fewer rejects. No more dealing with those annoying thin walls or pearlescence. The best part is that it’s a simple drop-in replacement. You don’t have to mess with the cabinet wiring or call in a specialist. Just swap the bulbs, recalibrate your heating zones, and get back to work.