
Stop Overpaying for Your Krones Contiform Heating Tubes
Let’s be honest: the cost of OEM quartz lamps for Krones Contiform lines is a nightmare. It’s one of those maintenance spikes that just eats into your budget for no good reason. We decided to do something about that. We make quartz heater tubes that fit your machine perfectly but don’t come with the “brand name” price tag. These aren’t some generic, off-the-shelf bulbs. We built them specifically for the heat and pressure of PET stretch blow molding. Getting the heat right If your heat distribution is off, you get thinning in the PET preform. It’s a mess. That’s why we make sure our tubes handle high-voltage loads and hit the exact wattage your machine expects. You get the infrared penetration you need. But here is a pro tip: when you’re running high power, your lamp sockets take a beating. Before you pop in new tubes, take a second to check your wiring for oxidation. It’ll save you a headache later. The gear inside We use high-purity fused quartz. Why? Because it stops the lamps from burning out way too early. Some of our tubes have special coatings that push the IR spectrum right into the PET material. It stops your energy from just heating up the machine frame, which is a waste of electricity. Depending on when your machine was built, we use R7s or Sk15 connectors. You just plug them in. No modifications, no drilling, no fuss. Real-world blowing These slide right into your heating oven. They do the heavy lifting—softening the preform body while keeping the neck cool—exactly like you’re used to. One thing to keep in mind: these tubes live in a brutal environment. If your oven’s airflow is garbage, it’s going to kill your lamps, no matter who made them. To fight that, we put a lot of focus on the glass-to-metal seal. It keeps the tube from cracking or leaking when the temperature swings wildly. It just works. Simple as that.