heat lamp for pet blowing quartz heating tube type replacement infrared halogen lamp

July 26, 2026

Getting Your PET Blowing Right with Quartz Halogen Lamps

If you’re blowing PET bottles, you know the drill. You need a massive burst of heat to soften those preforms fast before they hit the mold. That’s where our quartz halogen infrared lamps come in. They push out shortwave radiation that cuts right through the plastic. These aren’t your average light bulbs—they’re heavy-duty heating tubes built to slide right into your industrial ovens without a fuss. The Power Stuff Here’s the thing: you’ve got to get your voltage and wattage exactly right. If they don’t match your power supply, you’re asking for trouble. Either the bulb will burn out way too early, or you just won’t get enough heat to do the job. These tubes pull a lot of power to get that plastic to its transition temperature in a matter of seconds. We use a quartz envelope because it can handle the stress of heating up and cooling down over and over again without cracking. What’s Under the Hood We use high-purity quartz glass for a reason. It keeps the tube from soaking up the heat itself, which means more energy actually hits the PET. Inside, there’s halogen gas that stops the tungsten from evaporating. This keeps the glass crystal clear and helps the lamp last a lot longer. Depending on your setup, you’ll probably need R7s or Sk15 bases. We make sure the fit is tight so you don’t get any nasty electrical arcing when the machine starts vibrating. Real-World Advice These lamps put out an incredible amount of heat. It’s great for your cycle times, but it’s tough on your reflectors. If your reflectors are dirty or pitted, the heat won’t spread evenly. That’s how you end up with thin walls in your bottles. And a pro tip:**keep your fingers off the glass.**Oils and fingerprints leave deposits that create hotspots. Those hotspots are what kill the quartz. Just keep them clean, wire them up according to the specs, and you’re good to go.