Why Your SIG Blomax Lamps Keep Blowing (and How to Fix It)
If you’re running a SIG Blomax line and your tubes are burning out way too often, you know how frustrating it is. It’s never just a “random fluke.” Usually, it’s because the lamps just can’t handle the vibration and the constant heat swings of a high-speed blow molding machine. They basically get shaken and cooked until they snap. The secret is in the glass. We’ve spent a lot of time rethinking the quartz envelopes on our replacement IR lamps. Standard tubes love to crack right at the pinch seal or the connection point because they can’t handle the thermal expansion. We fixed that by tweaking the wall thickness and using higher-purity quartz. It makes the lamp tougher, which means it lasts longer before it gives up. And the best part? They’re drop-in replacements. You won’t have to mess with your wiring or change your footprints. We keep the wattage and voltage exactly the same as the SIG OEM specs, so your heating profiles don’t skip a beat. A quick heads-up on heat. Shortwave IR lamps have to be incredibly intense to soften PET preforms in a fraction of a second. But that intensity creates a brutal temperature gap. Here’s the thing: if your cooling blowers are clogged or just aren’t cutting it, the ends of the lamp will overheat. That leads to the filament evaporating way faster than it should. A reinforced lamp is a huge help, but it only works if your airflow is dialed in. Getting them installed We use precision-fit connectors because arcing is a nightmare. A loose connection at the terminal is the fastest way to kill a brand-new tube. When you’re swapping these out, just make sure the contacts are clean and tight. Simple, but it saves you a lot of grief. By focusing on those structural weak points where SIG lines usually fail, we can help you stop those annoying line stops. Plus, you won’t have to keep a mountain of spare glass sitting in your warehouse just to survive the week.