Production
Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic
Also called: Core Machine Operator, Die Cast Technician, Diecast Machine Operator, Machine Operator
US median pay
$44,350
per year, 2025
Job growth 2025–35
-3.4%
declining
Openings a year (US)
13,800
150,000 employed
Typical entry education
High school diploma or equivalent
Preparation 2/5 · Some preparation
What this job is
Set up, operate, or tend metal or plastic molding, casting, or coremaking machines to mold or cast metal or thermoplastic parts or products.
What they do day to day
- 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.
Skills and knowledge that matter most
Skills
- Operations Monitoring3.4/5
- Operation and Control3.1/5
- Time Management3.0/5
- Quality Control Analysis3.0/5
- Troubleshooting2.9/5
- Social Perceptiveness2.9/5
- Repairing2.9/5
- Judgment and Decision Making2.8/5
Knowledge
- Production and Processing3.5/5
- Mechanical3.5/5
- Mathematics3.1/5
- English Language2.9/5
- Administration and Management2.5/5
- Physics2.5/5
Importance rated by people working in the job (1 = not important, 5 = extremely important).
Education and preparation
Preparation level 2 of 5 — Some preparation. Usually a high school diploma; some previous work experience or training helps.
Typical entry education (BLS): High school diploma or equivalent.
Highest education of people in this job:
- High school diploma57%
- Less than high school30%
- Post-secondary certificate11%
Who this job suits
Mostly Realistic
Hands-on work with tools, machines, plants or animals
Conventional
Organising data, details and procedures
Based on the Holland (RIASEC) interest profile for this occupation.