Stop Fighting with Your KHS Blow Molding Ovens
Ever feel like you’re fighting a losing battle with your bottle walls? One side is too thin, the other is bulging, and you’ve spent way too many hours tweaking settings just to get a decent bottle. Usually, it comes down to one thing: your heat is uneven. When those preforms don’t heat up the same way every time, you get deformation. It’s frustrating. Most of the time, the culprit is either a dying filament or an IR lamp that just isn’t putting out a steady beam. That’s why we built our replacement lamps. They fit your KHS setup perfectly, but they’re designed to keep that heat field way more consistent.
The Secret to a Steady Soak
To get a uniform heat soak, you can’t have “hot spots.” It’s that simple. We use high-purity quartz and tungsten filaments wound with a lot of precision. Why? Because if the voltage dips or the filament is slightly off, you end up with cold zones in your oven. That’s where the trouble starts. Our tubes are built to take the punch of the voltage swings you see on a busy industrial line without just burning out.
No Headaches, Just a Swap
We kept the tech side simple. These use R7s or SK15 connectors, and we beefed up the electrodes so they don’t arc when the load gets heavy. The quartz is specifically tuned for short-wave IR. In plain English: it gets into the PET material faster. The best part? You don’t need a toolkit or a manual to make this work. You just drop them into your existing KHS racks. They fit. No bending brackets, no “making it work,” no stress.
A Couple of Things to Keep in Mind
If you go with higher wattage lamps, you’ll move more product and cut your cycle times. It’s great for throughput. But here’s the catch: more heat means your cooling fans have to work harder. If you upgrade to a high-density lamp, take a second to check your airflow. If the air isn’t moving, the quartz gets too hot and your lamps won’t last nearly as long. And a pro tip? Don’t just swap out one dead bulb. Replace the whole set. It’s the only way to make sure the heat stays balanced across the preform.