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Plastic Molding & Casting Machine Operator

Job Summary

Responsible for operating and tending metal or plastic molding, coremaking, or casting machines to mold or cast metal or thermoplastic parts or products.

Primary responsibilities

  • Operate metal and plastic molding and casting machines.
  • Mold and cast metal or thermoplastic parts.
  • Design and develop new molds, molding processes, techniques, process
  • improvements and cost reductions.
  • Develop and document manufacturing instructions and data sheets.
  • Operate compression or injection molding machines.
  • Mix catalysts and coloring pigments.
  • Operate mixing machine.
  • Repair and maintain machines.
  • Cut off excess material.
  • Grind scraps into powder.
  • Read specifications to determine setup and prescribed temperature and time settings.
  • Pour product into mold.
  • Remove cured product from mold.
  • Inspect products for surface defects and flaws.
  • Ensure conformance to specifications.
  • Position and secure assembled mold and mold components.
  • Put dies into machine.
  • Coat dies with parting agent.
  • Eliminate production of defective parts and products.
  • Weigh compounds and pour compounds into die well.
  • Fill machine hoppers.
  • Regulate molding temperature, volume, pressure, and time.
  • Activate machine to inject dies.
  • Attach connecting lines.

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