Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic Career

Job Description: Set up, operate, or tend metal or plastic molding, casting, or coremaking machines to mold or cast metal or thermoplastic parts or products.


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Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic Career

What Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastics do:

  • Observe continuous operation of automatic machines to ensure that products meet specifications and to detect jams or malfunctions, making adjustments as necessary.
  • Measure and visually inspect products for surface and dimension defects to ensure conformance to specifications, using precision measuring instruments.
  • Turn valves and dials of machines to regulate pressure, temperature, and speed and feed rates, and to set cycle times.
  • Remove parts, such as dies, from machines after production runs are finished.
  • Observe meters and gauges to verify and record temperatures, pressures, and press-cycle times.
  • Read specifications, blueprints, and work orders to determine setups, temperatures, and time settings required to mold, form, or cast plastic materials, as well as to plan production sequences.
  • Perform maintenance work such as cleaning and oiling machines.
  • Connect water hoses to cooling systems of dies, using hand tools.
  • Smooth and clean inner surfaces of molds, using brushes, scrapers, air hoses, or grinding wheels, and fill imperfections with refractory material.
  • Set up, operate, or tend metal or plastic molding, casting, or coremaking machines to mold or cast metal or thermoplastic parts or products.
  • Cool products after processing to prevent distortion.
  • Position and secure workpieces on machines, and start feeding mechanisms.
  • Unload finished products from conveyor belts, pack them in containers, and place containers in warehouses.
  • Operate hoists to position dies or patterns on foundry floors.
  • Obtain and move specified patterns to work stations, manually or using hoists, and secure patterns to machines, using wrenches.
  • Preheat tools, dies, plastic materials, or patterns, using blowtorches or other equipment.
  • Install dies onto machines or presses and coat dies with parting agents, according to work order specifications.
  • Repair or replace damaged molds, pipes, belts, chains, or other equipment, using hand tools, hand-powered presses, or jib cranes.
  • Remove finished or cured products from dies or molds, using hand tools, air hoses, and other equipment, stamping identifying information on products when necessary.
  • Select and install blades, tools, or other attachments for each operation.
  • Trim excess material from parts, using knives, and grind scrap plastic into powder for reuse.
  • Select coolants and lubricants, and start their flow.
  • Inventory and record quantities of materials and finished products, requisitioning additional supplies as necessary.
  • Adjust equipment and workpiece holding fixtures, such as mold frames, tubs, and cutting tables, to ensure proper functioning.
  • Maintain inventories of materials.
  • Spray, smoke, or coat molds with compounds to lubricate or insulate molds, using acetylene torches or sprayers.
  • Mix and measure compounds, or weigh premixed compounds, and dump them into machine tubs, cavities, or molds.
  • Skim or pour dross, slag, or impurities from molten metal, using ladles, rakes, hoes, spatulas, or spoons.
  • Pour or load metal or sand into melting pots, furnaces, molds, or hoppers, using shovels, ladles, or machines.
  • Pull level and toggle latches to fill molds, to regulate tension on sheeting, and to release mold covers.
  • Assemble shell halves, patterns, and foundry flasks, and reinforce core boxes, using glue, clamps, wire, bolts, rams, or machines.
  • Shape molds to specified contours, using sand, and trowels and related tools.
  • Clamp metal and plywood strips around dies or patterns to form molds.

What work activities are most important?

Importance Activities

Controlling Machines and Processes - Using either control mechanisms or direct physical activity to operate machines or processes (not including computers or vehicles).

Handling and Moving Objects - Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things.

Inspecting Equipment, Structures, or Material - Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects.

Getting Information - Observing, receiving, and otherwise obtaining information from all relevant sources.

Identifying Objects, Actions, and Events - Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events.

Communicating with Supervisors, Peers, or Subordinates - Providing information to supervisors, co-workers, and subordinates by telephone, in written form, e-mail, or in person.

Monitor Processes, Materials, or Surroundings - Monitoring and reviewing information from materials, events, or the environment, to detect or assess problems.

Performing General Physical Activities - Performing physical activities that require considerable use of your arms and legs and moving your whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials.

Making Decisions and Solving Problems - Analyzing information and evaluating results to choose the best solution and solve problems.

Judging the Qualities of Things, Services, or People - Assessing the value, importance, or quality of things or people.

Organizing, Planning, and Prioritizing Work - Developing specific goals and plans to prioritize, organize, and accomplish your work.

Evaluating Information to Determine Compliance with Standards - Using relevant information and individual judgment to determine whether events or processes comply with laws, regulations, or standards.

Repairing and Maintaining Mechanical Equipment - Servicing, repairing, adjusting, and testing machines, devices, moving parts, and equipment that operate primarily on the basis of mechanical (not electronic) principles.

Establishing and Maintaining Interpersonal Relationships - Developing constructive and cooperative working relationships with others, and maintaining them over time.

Operating Vehicles, Mechanized Devices, or Equipment - Running, maneuvering, navigating, or driving vehicles or mechanized equipment, such as forklifts, passenger vehicles, aircraft, or water craft.

Processing Information - Compiling, coding, categorizing, calculating, tabulating, auditing, or verifying information or data.

Updating and Using Relevant Knowledge - Keeping up-to-date technically and applying new knowledge to your job.

Coordinating the Work and Activities of Others - Getting members of a group to work together to accomplish tasks.

Documenting/Recording Information - Entering, transcribing, recording, storing, or maintaining information in written or electronic/magnetic form.

Training and Teaching Others - Identifying the educational needs of others, developing formal educational or training programs or classes, and teaching or instructing others.

Estimating the Quantifiable Characteristics of Products, Events, or Information - Estimating sizes, distances, and quantities; or determining time, costs, resources, or materials needed to perform a work activity.

Interpreting the Meaning of Information for Others - Translating or explaining what information means and how it can be used.

Coaching and Developing Others - Identifying the developmental needs of others and coaching, mentoring, or otherwise helping others to improve their knowledge or skills.

Analyzing Data or Information - Identifying the underlying principles, reasons, or facts of information by breaking down information or data into separate parts.

Scheduling Work and Activities - Scheduling events, programs, and activities, as well as the work of others.

Interacting With Computers - Using computers and computer systems (including hardware and software) to program, write software, set up functions, enter data, or process information.

Guiding, Directing, and Motivating Subordinates - Providing guidance and direction to subordinates, including setting performance standards and monitoring performance.

Developing and Building Teams - Encouraging and building mutual trust, respect, and cooperation among team members.

Assisting and Caring for Others - Providing personal assistance, medical attention, emotional support, or other personal care to others such as coworkers, customers, or patients.

Repairing and Maintaining Electronic Equipment - Servicing, repairing, calibrating, regulating, fine-tuning, or testing machines, devices, and equipment that operate primarily on the basis of electrical or electronic (not mechanical) principles.

Holland Code Chart for a Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic