Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic: Career & Application Guide

What do molding, coremaking, and casting machine setters, operators, and tenders, metal and plastic do?

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

This describes a U.S. occupation, not a live vacancy. Individual employers may use different titles and requirements.

Job titles to recognize in your search

O*NET reports these titles for this occupation. Compare the responsibilities in each posting before treating titles as equivalent.

Core Machine Operator
Die Cast Technician
Diecast Machine Operator
Machine Operator
Mold Setter
Mold Technician
Molder
Process Technician

Core tasks to compare with a job posting

Measure and visually inspect products for surface and dimension defects to ensure conformance to specifications, using precision measuring instruments.
Observe continuous operation of automatic machines to ensure that products meet specifications and to detect jams or malfunctions, making adjustments as necessary.
Set up, operate, or tend metal or plastic molding, casting, or coremaking machines to mold or cast metal or thermoplastic parts or products.
Turn valves and dials of machines to regulate pressure, temperature, and speed and feed rates, and to set 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.
Observe meters and gauges to verify and record temperatures, pressures, and press-cycle times.
Connect water hoses to cooling systems of dies, using hand tools.
Remove parts, such as dies, from machines after production runs are finished.
Perform maintenance work such as cleaning and oiling machines.
Smooth and clean inner surfaces of molds, using brushes, scrapers, air hoses, or grinding wheels, and fill imperfections with refractory material.

Prepare an application for this occupation

Check the employer’s requirements, location, schedule and any licenses against your situation.
Choose two or three tasks above that match the posting and your actual experience.
Build a resume evidence worksheet using the skills and software relevant to that employer.
Practice explaining your contribution, decisions and results before an interview.

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