Replacement filament for IR lamp

Tue, 28 Jul 2026 09:10:03 +0800

Why fighting with your IR lamps is a waste of time

Let’s be honest: most PET blow molding lines are a bit of a patchwork. You’ve got hardware from a few different OEMs, and when a lamp finally burns out, the last thing you want is to be stuck waiting weeks for a “brand-specific” part just to get your line moving again. That’s why we built our replacement IR filaments to be simple. They just work. We designed them to be drop-in replacements for about 95% of the gear running in plants today. Getting the fit right It really comes down to two things: the footprint and the electrical load. We stuck to the industry standards—the R7s and Sk15 connectors—because that’s what actually works. By matching the exact length and pin spacing of the original tubes, the lamp just slides into the socket. No forcing it, no stressing the wiring, and no headaches. Then there’s the power. To get a PET preform soft enough for the stretch-blow phase, you need raw thermal energy, and fast. We’re talking high voltage and high wattage—like pushing 2500W through a 300mm quartz envelope at 400V. It’s a lot of heat, delivered exactly where it needs to be. The secret is in the glass We use heavy-wall quartz glass to keep the halogen cycle stable. This stops the tungsten filament from evaporating too quickly, which means the lamp actually lasts. Some of our tubes even have special coatings. Instead of just scorching the surface of the plastic, these coatings help the heat soak deeper into the wall of the preform. It’s the difference between a surface burn and a proper melt. A quick tip on installation You can wire these straight into your current controllers. It’s easy. But here is the thing: these lamps put a massive load on your reflectors. If your reflectors are pitted or covered in oxidation, it doesn’t matter how good the lamp is—you’re wasting energy. You won’t get that full wattage into the plastic. Keep those reflectors clean. Your energy bill (and your production speed) will thank you. We keep the most common sizes in stock, so you get the same heat profile as the original part, just without the “OEM tax” on the price tag.

Filament on Infrared Element Systems

Replacement filament for IR lamp

Why fighting with your IR lamps is a waste of time