Carbon heat tubes are industrial-grade infrared emitters built for high-intensity heating in demanding applications. They convert electrical input directly into radiant heat, delivering fast response and focused energy where contact heating is impractical.
Technical Deep-Dive: Power, Voltage, and Dimensions
We spec these tubes to deliver high heat density in a compact footprint. A 400V rating supports stable operation in higher-voltage plant circuits, reducing current draw on the supply side and keeping conductor sizes manageable. The 2500W output provides the wattage needed to hit setpoint quickly, and the 300mm length concentrates that energy into a defined zone. This makes them suitable for tight machine spaces where you need repeatable heat without oversizing the whole system.
Material and Design: Halogen, Quartz, and R7s
The tube uses a quartz envelope with a halogen fill. The halogen cycle keeps the filament stable by preventing evaporation, which helps maintain consistent output over time and reduces premature burnout. The quartz body stands up to thermal shock and transmits infrared efficiently. The R7s connector is a direct, two-ended fit that simplifies mounting and replacement. It is a drop-in interface for many standard fixtures, so you can swap tubes without rewiring or modifying brackets.
Application and Benefits
These tubes are commonly used for plastic processing tasks like PET blowing, where you need rapid, uniform surface heating. The focused infrared output heats the material quickly, improving cycle time. The trade-off is heat density: at 2500W, the surrounding hardware sees more ambient heat, so proper heat shielding and airflow are necessary to protect nearby components and maintain stable control.