The Krones SK15 Infrared Heater: One Heater That Actually Fits the Whole Floor
Let’s talk about a real headache on the factory floor: heating lamps that lock you into one brand. You know the drill—waiting on a proprietary part, watching uptime slip away. So we built the Krones SK15 infrared heater to cut through that mess. It’s a straight, drop-in replacement for over 95% of global blow-molding machines. No adapters. No hoops. Just a reliable heat source—and we keep them in stock so you don’t have to wait.
Power, Voltage, and Size: It’s Thoughtfully Balanced
The SK15 runs at 2500W, 400V. Not random numbers—just a smart balance of heat and electrical load. The 300mm tube length focuses that energy into a tight footprint, exactly where PET preforms need it. That 400V setup matters. It pulls less current than lower-voltage systems, so you get less voltage drop over long cable runs and less heat building up in the wiring. And the 2500W punch means the quartz tube gets up to temperature fast—so your cycle times don’t get held hostage. But here’s the part that’s easy to miss: that kind of power density needs a machine that can breathe. If your blow-molding unit’s cooling is undersized, the ambient heat can work against the heater and shorten its life. So match the power to the cooling, and everyone stays happy.
What’s Inside: Halogen, Quartz, and a Connector That Just Works
Inside, a shortwave halogen element sits inside a high-purity quartz tube. Quartz handles thermal shock well and keeps infrared output steady. The halogen cycle keeps the filament stable, so you don’t get those dips in output that lead to uneven bottle walls. And the connector? That’s the secret sauce for universal fit. It’s engineered to match the proprietary sockets on Krones lines and to physically work with other major OEMs, too. This isn’t a bag of adapters. It’s one clean interface. Wire it once, drop it in, and move on.
On the Line: Heat That Makes Your Job Easier
In PET blow molding, the heater’s job is simple: soften the preform just enough, right where the stretch happens. The SK15 delivers shortwave infrared that penetrates quickly, so you don’t have to scorch the surface to get the material moving. That means setup gets less guessy. The output stays consistent over the life of the lamp. It can handle a high-speed line, day after day, without fading out and forcing surprise changeouts. What you feel on the floor is uptime. One lamp that specs across multiple machines. Fewer spare parts to track. Less time spent swapping components. The SK15 is built to meet the thermal demands of the process—plain and simple.