Cast-in heaters are precision-engineered heaters formed by casting resistance
elements (typically nickel-chrome) into aluminum, bronze, or other alloys. They provide uniform
heat transfer and are ideal for applications requiring complex shapes or high thermal
conductivity. Operating at temperatures up to 1200°F (649°C), they are often used in plastic and
metal processing.
Design Features:
● Cast aluminum or bronze body for excellent heat transfer
● Embedded tubular or coil heating elements
● Precision machining for tight tolerances
● Optional cooling tubes for thermal regulation
Applications:
● Extrusion dies and platens
● Food processing equipment (e.g., griddles, molds)
● Semiconductor manufacturing
● Medical device sterilization
Benefits:
● Uniform heat distribution across complex surfaces
● High durability and corrosion resistance
● Customizable shapes and sizes
● Integrated cooling options for precise control
Technical Insight: Cast-in heaters can achieve watt densities up to 35 W/in2, with aluminum
casts offering superior thermal conductivity for rapid heating.
