Expand mobile version menu

Molding, Coremaking and Casting Machine Worker  What They Do

Just the Facts


Sets up, operates, or tends metal or plastic molding, casting, or coremaking machines to mold or cast metal or thermoplastic parts or products.

This career is part of the Manufacturing cluster Manufacturing Production pathway.


A person in this career:

  • Observes continuous operation of automatic machines to ensure that products meet specifications and to detect jams or malfunctions, making adjustments as necessary.
  • Measures and visually inspects products for surface and dimension defects to ensure conformance to specifications, using precision measuring instruments.
  • Sets up, operates, or tends metal or plastic molding, casting, or coremaking machines to mold or cast metal or thermoplastic parts or products.
  • Positions and secures workpieces on machines, and starts feeding mechanisms.
  • Turns valves and dials of machines to regulate pressure, temperature, and speed and feed rates, and to set cycle times.
  • Removes finished or cured products from dies or molds, using hand tools, air hoses, and other equipment, stamping identifying information on products when necessary.
  • Skims or pours dross, slag, or impurities from molten metal, using ladles, rakes, hoes, spatulas, or spoons.
  • Trims excess material from parts, using knives, and grinds scrap plastic into powder for reuse.
  • Cools products after processing to prevent distortion.
  • Installs dies onto machines or presses and coats dies with parting agents, according to work order specifications.

Working Conditions and Physical Demands

People who do this job report that:

  • You would often handle loads up to 10 lbs., sometimes up to 20 lbs. You might do a lot of walking or standing, or you might sit but use your arms and legs to control machines, equipment or tools.
  • Work in this occupation involves use of protective items such as safety shoes, glasses, gloves, hearing protection, a hard hat, or personal flotation devices
  • Exposure to pollutants, gases, dust, fumes, odors, poor ventilation, etc.
  • Conditions are very hot (above 90 F) or very cold (under 32 F)
  • Work in this occupation involves using your hands to hold, control, and feel objects more than one-third of the time
  • Exposed to hazardous equipment such as saws, machinery, or vehicular traffic more than once a month
  • Sound and noise levels are loud and distracting
  • Work in this occupation involves making repetitive motions more than one-third of the time
  • Work in this occupation involves standing more than one-third of the time

Working in this career involves (physical activities):

  • Picking out a particular sound in the presence of other sounds
  • Using muscles repeatedly or over time without tiring
  • Seeing clearly at a distance
  • Seeing clearly up close
  • Speaking clearly enough to be able to be understood by others
  • Identifying and understanding the speech of another person
  • Exerting oneself physically over long periods of time without getting out of breath
  • Lifting, pushing, pulling, or carrying objects
  • Using abdominal and lower back muscles repeatedly or over time without tiring

Work Hours and Travel

  • Overtime work
  • Rotating shift work

Specialty and Similar Careers

Careers that are more detailed or close to this career:

  • Centrifugal Casting Machine Tender -- Tends centrifugal casting machine that casts plastic cylinders used in fabrication of blanks, for example button blanks in the button industry.
  • Pilling Machine Operator -- Tends pilling machine that compresses plastics powder into pellets or biscuits of specified weight and shape.
  • Polymerization Oven Operator -- Tends steam oven that heats liquid plastics in glass molds (cells) to form sheets.
  • Reclamation Kettle Tender -- Tends melting kettle to remelt metal scrap, dross, and skimmings to recover lead, cadmium, zinc, or other nonferrous metals and cast it into pig molds for reuse.
  • Turning and Beading Machine Operator -- Tends series of milling machines to machine crochet needles from bone blanks.
  • Babbitt Spinner --
  • Bender Machine Operator --
  • Die Cast Technician --
  • Musical Instrument Maker --