
Getting Your Krones Contiform S Oven Just Right
Keeping a Krones Contiform S running smoothly is always a bit of a balancing act. You want enough heat to get the job done, but you don’t want to be swapping out bulbs every other week. And let’s be honest—when those OEM prices start climbing, it hurts. You just need a replacement that fits, plugs in, and puts out the same heat as the factory lamps without breaking the bank. The nitty-gritty on power and heat These IR bulbs run on high-voltage circuits because PET preforms need a serious punch of heat to get moving. We’ve designed our lamps to hit the exact voltage and wattage your Contiform S expects. The goal here is a concentrated blast of heat. It gets the preform to that “sweet spot” (the glass transition temperature) fast, but it does it without scorching the neck of the bottle. Just a heads-up: keep an eye on your power supplies. If your voltage is jumping all over the place, those filaments are going to pop way sooner than they should. Quartz and the “Perfect Fit” We use heavy-wall quartz glass because these bulbs go through a lot of thermal shock. They heat up and cool down constantly. To keep them from clouding over, we use a halogen cycle that stops tungsten from building up on the inside. This keeps the light clear and the heat consistent for thousands of hours. As for the fit? We stick to the standard R7s or Sk15 connectors. We build them to tight tolerances because a loose fit is a nightmare. If the bulb doesn’t seat perfectly, you get arcing, and before you know it, you’ve fried your socket. No one wants to spend their Saturday replacing sockets. The trade-off you need to know about Switching to high-performance alternatives is a great way to cut your maintenance costs. But there’s a catch. When you use high-density IR lamps, your oven’s ventilation has to work harder. If you crank up the wattage to speed up your cycles, you’ve got to make sure your cooling blowers are spotless and capable of hauling away that extra ambient heat. If the airflow isn’t dialed in, you’ll start seeing “pearling” or weird, uneven walls in your bottles. Our lamps give you all the heat you need—just make sure your oven can breathe.