A Smarter Way to Handle Your Krones Contiform Heaters
Let’s be honest: keeping Krones Contiform lines running is expensive. Between the downtime and the OEM price tags, the maintenance bills can start to feel like a gut punch. We decided to fix that. We make quartz tube heaters that do exactly what the original equipment does, but without the “brand name” tax. They’re built for the heavy lifting—specifically the high-intensity infrared heat needed to get PET preforms ready for blowing. Getting the heat just right Here’s the thing about preforms: if you don’t hit the exact temperature, you’re in trouble. Too cold, and the bottle won’t form. Too hot, and you’ve just melted a piece of plastic. That’s why we obsess over the wattage and voltage. Our tubes are built to handle the specific load of a Contiform oven, using high-voltage setups to pack a ton of heat into a small space. One quick tip from the field: keep your cooling fans clean. If the airflow drops, these high-wattage tubes will burn out way faster than they should. It’s a simple fix that saves a lot of headaches. The science bit (made simple) We use high-purity quartz glass because it lets the IR light through without blocking it. Most of our tubes use halogen technology, which basically acts as a stabilizer for the filament. It means your heat output stays steady, even as the tube gets older. But different resins act differently. Depending on what you’re running, you might need shortwave IR for a fast hit, or a more focused spectrum so you don’t overheat the neck of the preform. And don’t worry about the wiring. We use standard R7s or Sk15 connectors. You just plug them into your existing sockets and you’re good to go. No modifications, no drilling, no stress. Swapping them out Installing these is a breeze. You pull the old tube, slide ours in, lock the connector, and you’re back in business. The real win here is the thermal profile. We’ve tuned these to heat the preform evenly. No “cold spots,” no weird wall thickness in your bottles—just a consistent finish. You get the same performance you’re used to, but your budget will actually thank you.