Stop Overpaying for Your SIG Blomax 4 Lamps
Let’s be honest: keeping the heating oven in a SIG Blomax 4 or Krones Contiform line running is a bit of a headache. Between the lamps burning out and the cost of OEM replacements, it feels like a constant drain on your budget. We decided to fix that. We built a replacement infrared lamp that does exactly what the original does, just without the “brand name” markup. The heat is the hard part. If your heat distribution is off, you get pearlescence or weird wall thickness in your PET preforms. Nobody wants that. We’ve matched the voltage and wattage of the originals perfectly. Why? Because the last thing you want to do after swapping a lamp is spend three hours recalibrating timers or messing with conveyor speeds. You just pop them in, and they work. Simple. Built to actually last. We use high-purity quartz glass because these things take a beating from rapid thermal cycling. The filaments are designed for shortwave IR, so the heat actually gets into the PET faster. And about the connectors—we use standard R7s or Sk15, depending on your machine. They fit tight. No loose contacts, no annoying arcing, and no burnt-out sockets to deal with later. A few tips from the field. These are true drop-in replacements. You get the same heat density, but your cost per hour drops. But here’s the thing: if you’re running these at max wattage, your cooling fans are going to work harder. If your ventilation is clogged with dust, it doesn’t matter who made the lamp—it’s going to burn out early. While you’re in there changing the lamps, do yourself a favor and wipe down the reflectors. If they’re dirty, that IR energy is just soaking into the oven walls instead of hitting the preform. It takes two minutes, and it makes a world of difference.