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Cast Heaters

MPI Morheat Cast Heaters have proven to be the most effective method for heating and cooling the barrels of plastic-processing extruders. They are highly efficient and provide thousands of hours of dependable, trouble-free service.

MPI offers Cast Heaters with liquid and/or air cooling functions.

In the liquid cooling system, shaped tubing is incorporated into heater assembly, creating a passage for processing water or heat transfer solutions to dissipate the heat. For the air cooling function, numerous fins are cast to the O.D. surface of the band.

STANDARD FEATURES
  • DURABLE CAST ALUMINIUM OR BRONZE CONSTRUCTION
  • STAINLESS STEEL POST TERMINALS
  • HIGH HEAT TRANSFER CABABILITY
  • STAINLESS STEEL COOLING TUBES AVAILABLE
  • 0.43” DIA RUGGED TUBULAR HEATER DESIGN
  • STAINLESS STEEL LOCKUP STRAPS
  • NICKEL-CHROMIUM RESISTANCE WIRE
  • CUSTOM SIZES AVAILABLE
Applications
  • EXTRUDERS
  • INJECTION MOLDING
  • EXTRUSION DIE HEADS
  • BLOW MOLDING
  • LAMINATING EQUIPMENT
  • VACUUM FORMING
  • GLUE POTS
Specifications
Watt Tolerance           +5 -10% Diameter Tolerance  ±1/16” Width Tolerance        ±1/1 6” Length Tolerance      ±1/1 6”
Construction
The heat source for CAST-IN heaters are tubular heating elements. They can be formed into endless configurations to accommodate any practical CAST-IN heater shape or formed and casted in and around machine component parts such as fluid transfer pipes, valves, reducers, tees, elbows, and other special assemblies requiring localized heat. The sheath material is Stainless Steel and heater diameter will vary depending on CAST-IN heater design. Aluminum is the predominant alloy used for CAST-IN heaters. Copper base alloys (Bronze) are used when the operating temperature required exceeds those of Aluminum. Also recommended for heated platens on molding presses as Bronze can withstand more pounds per square inch of pressure.
Band Style
Platen Style
L Shaped Style