Electric Blow Heater: 400V Halogen Tubes, Built for PET Preforms
We built this electric blow heater for one simple reason: to get your PET preforms hot—fast. Because when the clock is ticking, you need heat that keeps up with the pace. Our standard unit runs on 400V, delivers 2500W, and uses a 300mm halogen tube. That combination gives you a tight burst of power, softening the neck and body of the preform without turning the whole machine into a sauna.
Power, Voltage, and Size—Why It Matters on the Floor
That 400V rating isn’t just a number. It’s a practical choice. Same wattage, lower current. That means you can keep cables lean and avoid voltage drop, even on longer runs. And the 2500W output? It’s sized to hit target temperature quickly, so dwell time stays short. The 300mm length is chosen to match the usual preform and mold zone, so the heat lands where you need it—no more, no less.
The Elements: Halogen, Quartz, and a Smart Coating
Inside, we use shortwave halogen elements in a quartz envelope. Why? Because they respond almost instantly—on when you start, off when the timer says so. A reflective coating helps focus the infrared heat downward, cutting down on wasted energy. And the R7s base? It’s the kind of straightforward bipin fit that locks in fast and can take the wear and tear of swapping out on a busy shop floor.
What It Feels Like in a PET Blow Cell
In PET blowing, heat needs to be predictable and repeatable. This setup delivers fast, focused energy, so you can swap it in and get back to work with minimal fuss. A heads-up: 2500W at 400V runs hot. That’s just the reality. So you’ll want to match airflow and keep mounting clearances in mind to protect nearby components. When it clicks, it’s just heat—on time, on target, and ready for the next cycle.