Global trade of blow molding IR lamps

Thu, 23 Jul 2026 13:34:11 +0800

Getting Your Krones Contiform Lamps Right

If you’re running Krones Contiform machines, you already know the drill. Those infrared (IR) heat profiles have to be spot on to get your PET preforms soft enough to blow. But let’s be honest—OEM lamp prices can be a nightmare. When you start looking for replacements, you can’t just grab any bulb. If the wattage, voltage, or spectral output is off, you’re going to end up with ruined bottle geometry. And nobody wants to explain a mountain of scrap to the boss. It’s all about the heat density. We build these lamps to handle the brutal high-voltage environment of industrial blow molding. Whether you’re running 230V or 400V, it isn’t just about raw power. It’s about how much heat you can cram into a small space. We use a compact quartz tube to make sure the preform hits that glass transition temperature fast. If the wattage dips even a little, your cycle times creep up. You slow down. You lose money. It’s that simple. The nitty-gritty: Quartz and Connectors Thermal stress is a killer. That’s why we use heavy-wall quartz glass; it keeps the tubes from bowing when things get hot. Most of our lamps for the Contiform use R7s or Sk15 connectors. They’re industry standards for a reason—they snap in tight and won’t rattle loose while the machine is screaming along at full speed. We also add specific coatings to the quartz. This pushes the heat deeper into the PET wall instead of just scorching the surface. Swapping them out The good news? These are total drop-in replacements. You pull the dead tube, slide the new one in, wire it up, and you’re back in business. No need to mess around with the oven housing. But here is a heads-up. If you’re tempted to bump up the wattage to squeeze out more production, watch your cooling blowers. Higher power means a hotter oven. If your cooling system can’t keep up, you’ll burn out the lamp ends way too early. Also, take a second to make sure everything is aligned. A skewed lamp creates hot spots, and that leads to that annoying pearlescence in the final bottle. Just a quick check saves a lot of headaches later.

Lamps on Indoor IR Heating Network

Global trade of blow molding IR lamps

Getting Your Krones Contiform Lamps Right