Electric Blow Heater: The Real Deal for PET Blowing
We built this electric blow heater for one simple reason: to put powerful, controllable heat exactly where you need it—right where the air hits the preform. If you’re running PET blowing, you know the drill. You need heat that settles in fast, stays put, and connects clean.
Power, Voltage, and Size—Without the Fluff
This heater runs at 400V and 2500W, packing serious heat into a small space. The 300mm tube length focuses all that energy into one tight zone, so you get a quick warm-up and temperature control you can count on, cycle after cycle. High wattage in a short package is exactly what the air stream demands. But here’s the thing—it also means the parts around it will feel the heat. So plan your airflow and mounting with that in mind.
What It’s Made Of—And Why It Matters
We went with a halogen-filled quartz tube. Why? Because it keeps the heating element steady, even when the temperature swings hard and fast. It handles the shock of rapid cycling without blinking. A protective coating helps, too. It fights off surface wear from contaminants, so the heater keeps delivering the same steady output over time. And the R7S connector? Practical choice. It snaps in, carries the current, and makes replacement a breeze—drop it right into your existing setup.
How It Feels on the PET Blowing Line
On the PET blowing line, this heater sits right in the air path, preheating the stretch air and helping keep bottle wall thickness consistent. High power density, a short tube, and a dependable connection mean predictable heating with way less downtime. When the temperature dips, it recovers fast. But—and this matters—with this kind of power, your machine’s cooling and insulation have to be up to the job. That’s how you keep the whole control environment steady.