Ceramic Band Heaters
Injection Moulding/Extrusion Lines
Ceramic band heaters are widely used in industrial applications for heating cylindrical surfaces.
- Construction:
- A ceramic band heater consists of interlocking ceramic brick tiles with a spiral-wound nickel-chrome resistance coil.
- These durable heaters are assembled like a brick wall, with the heating core placed inside the ceramic tiles.
- The assembly is covered by a ceramic fiber insulating mat and a stainless-steel jacket.
- Temperature Range:
- Ceramic band heaters can operate at temperatures up to 1200°F (650°C).
- They are commonly used in injection molding, blow molding, and extrusion processes.
- Heating Mechanism:
- Ceramic band heaters transmit heat through both conduction and radiation.
- The element winding heats the ceramic blocks, which then radiate energy into the barrel and conduct energy by being in contact with the surface.
- Fit is not as critical as in other types of bands.
- Advantages:
- Excellent dielectric strength at high temperatures and high voltages.
- Allows for smaller increments in heater widths (as small as 1/8″).
- Reduces the chances of damaging internal coils during transit and handling.
- Easier installation onto cylindrical devices like barrels.
Remember that specific details may vary based on the manufacturer. If you need further information or have specific questions, feel free to ask!