Introduction
Let’s cut to the chase. We built the SIPA SFL 4/4 linear blower IR radiator to fix a genuine headache on the plant floor. You know the one—trying to get reliable, high-output infrared heat to work across most blow-molding lines without having to redesign everything. This unit is a direct-fit heat source for linear blower systems. It throws targeted shortwave infrared energy exactly where you need it. The whole idea? Make it simple. Plug it in, wire it up, and get running.
Technical Deep-Dive: Power, Voltage, and Dimensions
The SFL 4/4 is built to fit snugly into those tight linear blower zones. Its 300mm tube length matches up with standard machine footprints, so it slips right in. It runs on 400V, which lets us pack a lot of power into a small space without forcing you to overhaul your wiring. That voltage choice keeps the current down, which means you don’t need heavy cables and oversized contactors just to get the heat you need. We’re talking 2500W of concentrated power in that short length. That gives you serious heat density—fast response, quick recovery, and the ability to hold the setpoint even when bottles are flying by. But here’s the thing—that kind of output doesn’t come without a trade-off. A 400V, 2500W tube puts real heat into the surrounding area. So your machine’s cooling and airflow need to be up to the task. If the enclosure can’t shed that heat, you’ll see component life take a hit.
Material & Design: Quartz, Coating, and Connector Choice
We went with a quartz envelope because it handles rapid temperature swings better than most materials, and it stays clear for the infrared spectrum you actually want. Inside, the halogen element keeps output stable and temperature control consistent—exactly what you need for repeatable cycles. The reflective coating is there to push energy forward, cutting down on wasted side radiation. More power lands on the PET preform, less on the machine frame. And for installation, we chose an R7s connector—an industry-standard interface that makes this lamp a true drop-in replacement. No custom mounting hardware. No rewiring nightmares. Just line it up and lock it in.
Application & Benefits: PET Blowing Without Compromise
In PET blowing, the heater has to keep up with the fast, continuous motion. The SFL 4/4 heats up fast and holds temperature steady, which helps keep cycle times consistent and cuts down on scrap from temperature drift. Because it’s designed as a universal fit, it can replace many of those proprietary heaters across different blow-molding machines. We keep this unit in stock, so when a heater burns out, you’re not stuck waiting weeks for a replacement. Just remember—that power demands proper cooling and airflow. Get that right, and you’ve got a tough, spec-agnostic heater that keeps your line moving.