CERAMIC BOBBIN CARTRIDGE HEATERS
Overview: Ceramic band heaters are high-performance solutions for heating cylindrical
surfaces, such as barrels in plastic extrusion or injection molding. They feature a helically
wound nickel-chrome resistance coil threaded through interlocking ceramic insulating bricks,
encased in a stainless-steel sheath with serrated edges. Operating at temperatures up to
1400°F (760°C), they offer superior thermal efficiency and durability compared to mica band
heaters.
Design Features:
● Ceramic core for excellent heat radiation and conduction
● Stainless-steel sheath (SS 304 or 316) for corrosion resistance
● Flexible design with clamping mechanisms for secure fit
● Customizable with holes, cut-outs, or thermocouple ports
● Injection molding and extrusion barrels
● Blow molding machines
● Heating pipes and cylindrical vessels
● Food processing equipment
● High thermal efficiency with ceramic fiber insulation
● Reduced energy consumption (up to 30% savings)
● Long lifespan due to robust construction
● Easy installation and customization
Technical Insight: Ceramic band heaters can achieve watt densities up to 45 W/in2, with
insulation reducing heat loss by up to 25%. Their flexibility allows for precise fitting on irregular
surfaces.
