What Makes This Heater Tick
We built this heater for one place: the tough environment of a PET blowing preform mold. It runs on 400V for a reason. That setup delivers a focused 2500W of heat packed into just 300mm. That kind of power density is exactly what you need to bring the preform up fast—and evenly—so the material flows consistently every time. And that 300mm length? It’s the standard footprint that slips right into the existing Dog House heater channels. So if you’re replacing an old unit, this is a straight swap. No mess, no re-engineering.
Inside the Core
At the heart of it is a quartz tube, filled with halogen. That halogen cycle does something smart: it keeps the tungsten filament clean by recycling it chemically. So the tube doesn’t blacken, and the output stays steady over the life of the heater. You get a long burn life without that annoying fade you see with standard infrared elements. The connector is the industrial-standard R7s, made for high temperatures. It’s secure, simple to wire, and it stays put even when the machine is vibrating.
Real-World Heat, Real-World Trade-offs
Inside the Dog House, this heater gives you the intense, localized heat needed to condition preforms with precision. The quartz envelope can take the thermal shock, and the halogen tech keeps performance repeatable, cycle after cycle. But here’s the thing: packing 2500W into a 300mm space creates a lot of heat. Your machine’s cooling system needs to be up to the job. If the cooling falls short, the surrounding parts run hotter—and that directly affects how reliably the whole system holds up.