On a Krones blow molder, the heating tunnel is where the day gets made—or lost. When the reflectors get tired, output starts to slip and preform temperature starts to wander. You end up chasing setpoints, running more scrap, and still wrestling with uneven wall thickness. Swapping the whole oven is overkill. The smart move is a reflector replacement built specifically for the job. What matters technically We make the reflector to match Krones’ heating profile, using anodized aluminum with high reflectivity to throw infrared energy back onto the preforms. It’s engineered to fit the OEM lamp interface—typically halogen or short-wave infrared emitters with an R7s connector—so you keep the same lamp power, voltage, and focal distance. No need to re-tune the heating curve. Dimensions and mounting points copy the original, so the heat lands where the system expects it. Why it works in practice With fresh reflectors, the tunnel settles into repeatable temperature distribution, and preform heating becomes more uniform. That means fewer hot spots, less risk of crystallization, and stretch ratios that hold steady on the blow molder. On the floor, you see fewer heating-related rejects and a tighter bottle weight window. The reflector also cuts wasted IR output, so you can lower operating temperature without giving up output. Things to keep in mind Installation is straightforward, but the oven needs to be cool and clean before you swap components. Double-check the lamp type and wattage on your specific Krones machine—mismatched emitters will shift the heating pattern even with a good reflector. After the change, run a short warm-up and re-check temperature mapping to confirm the setpoints you need for your bottle geometry.