Getting Your PET Preform Heating Right with 670mm 600W Halogen Lamps
If you’ve spent any time around a PET blowing machine, you know the struggle. You need that plastic to soften just right before it stretches. Too cold, and it won’t blow. Too hot, and you’ve got a mess. That’s why we built our 670mm 600W halogen lamps—to hit that sweet spot where high-speed production actually feels easy. The secret is in the heat distribution. When you’ve got 600W spread across 670mm, the heat doesn’t just clump together in one spot. We’ve all seen those “hot spots” that leave your bottles with weird, thin walls in some places and thick patches in others. It’s frustrating. These lamps keep things steady. The plastic stays malleable, and you don’t have to worry about scorching the material. Now, let’s talk about the tech for a second. These use a halogen cycle, which is basically a fancy way of saying the tungsten goes back onto the filament instead of sticking to the glass. Why does that matter? Because your lamps won’t get cloudy. They stay clear for thousands of hours. Plus, we use high-purity quartz glass. It can take the shock of being switched on and off rapidly without cracking. If you’re swapping these into an old oven, they’re a simple drop-in replacement. But here’s a pro tip:**clean your sockets.**If you’ve got carbon buildup in the connectors, you’ll get arcing, and you’ll burn out the ends of your brand-new lamps. Not a great way to start the day. A couple of things to keep in mind for your line. These lamps are great for medium-to-high speed lines, but double-check your voltage. If the power supply doesn’t match the lamp, the filament is going to give up way sooner than it should. And a heads-up on the heat. Higher wattage means a hotter oven. If you push it too hard, make sure your cooling fans can actually keep up. You don’t want your machine’s electronics overheating just because you wanted a bit more punch in the heating zone. Get the wiring right, and you’ll have consistent temperatures across your entire run. No guesswork. Just bottles that come out looking exactly how they should.