Generic SIDEL replacement lamp

Fri, 17 Jul 2026 04:57:30 +0800

Getting Your PET Blow Molding Heat Just Right

If you’ve spent any time around a PET blow molding line, you know the deal. Everything hinges on those infrared (IR) lamps. If they aren’t hitting the preforms just right, you’re in trouble. We make replacement lamps that just work. Whether you’re running Sidel or another big OEM brand, our tubes are designed to slide right into your existing setup. No hacking the machine, no weird modifications. Just swap them in and get back to production. The nitty-gritty on power We build these to handle the heavy lifting, usually anywhere from 230V to 400V. Here’s the trick: higher voltage lets us use a longer filament without cranking the current so high that your connectors start to melt. It’s all about the heat density. If your machine expects 2500W over 300mm, that’s exactly what we give you. You want that preform to hit the glass transition temperature perfectly—soft enough to blow, but not so hot that you ruin the neck. What’s actually inside the tube? We use heavy-wall quartz glass. Why? Because thin glass bows when it gets scorching hot, and that throws off your heat distribution. Inside, we use a halogen cycle. It keeps the filament from evaporating, which means the lamp actually lasts longer. For the ends, we stick with the old reliables—R7s or Sk15 bases. They’re the industry workhorses for a reason. They just click into your sockets without you having to mess with the wiring. Plus, we often add a selective coating to the glass to bounce the heat back toward the plastic instead of wasting it on the oven walls. A few things to keep in mind You can put these in about 95% of the blowing equipment out there because the dimensions are standard. But a word of caution: if you push a lamp to its absolute max wattage, your cooling fans have to work harder. If your vents are clogged with dust or just aren’t up to the task, the electrodes will soak up too much heat and the lamp will burn out faster. Keep your reflectors clean. It sounds simple, but it’s the easiest way to make sure you’re getting every bit of heat you paid for.

Generic on Electric Warm IR Patio Heaters

Generic SIDEL replacement lamp

Getting Your PET Blow Molding Heat Just Right