Krones S24 Replacement: The Real-World Guide to High-Voltage Infrared Heating Lamps
We built this replacement lamp with the Krones S24 in mind, but honestly, the real win is how it plays nice with over 95% of blow molding machines worldwide. This isn’t just a bulb. It’s a complete thermal module that slides right in and handles the tough demands of PET blowing like it was born for it.
Power, Voltage, and Fit: What Matters on the Floor
Here’s the stuff you actually care about. We run this at high voltage—400V, which is standard for industrial heating. That gives you serious power in a tight space. At 2500W, it throws down the heat fast, so PET preforms get up to temperature quickly enough to keep pace with high-speed cycles. And the size? Around 300mm, cut to match the focal distance inside the blow molding chamber. The heat lands exactly where it needs to, without wasting energy on the machine around it.
What It’s Made Of: Quartz, Halogen, and Connectors That Stay Put
The tube uses high-purity quartz. It takes the shock of rapid on/off cycling without cracking, and it delivers shortwave infrared cleanly. Inside, the halogen cycle keeps the filament stable, so you don’t get that blackening and drop-off that kills output over time. For connectors, we use R7s or Sk15—industrial standards for a reason. They carry high current safely, and they lock in. No wiggling loose when the machine is humming. Wire it once, and it stays connected.
Why It Works: Quick Install, Reliable Heat, and a Real Bottom Line
On the shop floor, time is money. This lamp goes in fast, and it performs when the pressure is on. Because it’s built to be universal, you don’t have to chase down a proprietary part when one burns out. It drops straight into what you already have, so you spend less time down and more time running. The shortwave infrared heats preforms quickly, which can help shorten cycle times and cut gas use. Now, a heads-up: a 2500W, 400V lamp packs a lot of heat. Make sure your machine’s cooling is up to the job. If the cooling is undersized, the extra ambient heat can push nearby components into overload. Match the lamp to the system, and you get heating that’s steady, repeatable, and dependable.