Stop Overpaying for Your Krones Contiform Lamps
Let’s be honest: keeping a Krones Contiform line running is expensive. And a huge chunk of that cost goes straight into those OEM lamp replacements. It adds up fast. That’s why we made our SIPA-compatible heating lamps. They’re designed to be simple drop-in replacements. You get the same heat profile your PET blowing needs, but without the “brand name” price tag.
The heat side of things
Here is the deal with preform heating: you need precise shortwave infrared radiation. We build these lamps with high wattage and voltage so the PET resin hits its glass transition temperature quickly. When you run a high-voltage tube, you get that intense heat density that keeps your cycle times low. But there’s a catch. All that power creates a lot of ambient heat. **Pro tip:**Keep your oven’s cooling blowers clean. If they aren’t working perfectly, your filaments are going to burn out way too soon.
Built to last, easy to install
We use heavy-wall quartz glass because these tubes take a beating. The thermal stress is intense, and cheap glass just warps. We also use a halogen cycle to protect the tungsten filament, which means the lamps simply last longer than your average infrared tube. As for the setup? It’s easy. We use standard R7s or Sk15 connectors. You can swap them out during a shift change and get back to work. No custom adapters, no hacking the lamp holders, no headaches.
How they actually perform
You won’t notice a difference in the bottle. These lamps match the spectral output of the original Krones parts, meaning the heat penetrates the preform wall just right. No “cold spots,” no uneven walls—just a clean, consistent bottle. You’re lowering your cost per bottle, but your power draw and machine footprint stay exactly the same. One last thing: if you’ve been burning through lamps lately, check your voltage stability before you pop in a new set. It’ll save you from blowing a filament the moment you flip the switch.