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Metal Castings
Waupaca Foundry, Neenah Foundry, Grede
Foundry Mold and Coremakers
Foundry mold and coremakers build the sand molds and internal cores used to shape molten metal into finished parts. The work is part craftsmanship, part heavy labor: you need to fit patterns accurately and spot defects, but you also spend a lot of time lifting, packing sand, and repairing rough surfaces. It is one of those jobs where the barrier to entry is fairly low, yet the long-term outlook is weak because employment is projected to fall 25.9% by 2034.
Also known as Mold MakerCoremakerFoundry Mold MakerFoundry CoremakerMold and Core Maker
Median Salary
$45,700
Mean $46,910
U.S. Workforce
~13K
0.9K openings per year
10-Year Growth
+-25.9%
12.7K to 9.4K
Entry Education
High school diploma or equivalent
+ None experience
What This Role Looks Like in Practice
Foundry Mold and Coremakers sits in the Trades category. In practical terms, this role combines day-to-day execution, cross-team coordination, and consistent decision-making under real business constraints.
U.S. employment is currently about ~13K workers, with a median annual pay of $45,700 and roughly 0.9K openings each year. Based on BLS projections, total employment is expected to decline from 12.7 K in 2024 to 9.4K in 2034.
Most hiring paths start with High school diploma or equivalent, and employers typically expect none of related experience. Many careers in this track begin around Foundry Helper and can progress toward Foundry Lead or Supervisor. High-value skills usually include Sand Molding, Core Boxes & Pattern Setup, Overhead Cranes, Hoists & Rigging, and Gating, Sprue & Vent Layout, paired with soft skills such as Monitoring, Operations Monitoring, and Active Listening.
Core Responsibilities
- Clean up molds and cores, then smooth out cracks, bumps, and other flaws before the metal is poured.
- Cut the openings and channels that let molten metal flow through the mold and let air escape.
- Build and assemble core sections around patterns, then reinforce them so they hold their shape.
- Move heavy mold sections, patterns, and boards into place with cranes or by working with other crew members.
Keep exploring: more Trades careers or browse all job titles.
A Day in the Life
01 Clean up molds and cores, then smooth out cracks, bumps, and other flaws before the metal is poured.
02 Cut the openings and channels that let molten metal flow through the mold and let air escape.
03 Build and assemble core sections around patterns, then reinforce them so they hold their shape.
04 Move heavy mold sections, patterns, and boards into place with cranes or by working with other crew members.
05 Set the cores into the lower half of a mold and clamp the mold closed so it is ready for pouring.
06 Pack sand into molds and core boxes by hand or with powered tools, then remove patterns after the mold is formed.
Industries That Hire
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Automotive Manufacturing
Ford, General Motors, Toyota
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Aerospace & Defense
Howmet Aerospace, Boeing, RTX
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Heavy Equipment & Industrial Machinery
Caterpillar, John Deere, Komatsu
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Rail & Transportation Equipment
Wabtec, Alstom, Siemens Mobility
Pros and Cons
Advantages
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You can get into the field without a college degree; the usual entry point is a high school diploma, and the job uses moderate-term on-the-job training.
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Pay is solid for a trade role, with a median wage of $45,700 and a mean wage of $46,910.
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The work is very hands-on, so you can see whether your mold or core was built correctly almost right away.
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You build practical shop-floor skills like crane spotting, measurement, defect repair, and material handling that transfer to other manufacturing jobs.
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For people who like physical, production-based work, the job offers a clear daily rhythm and concrete output instead of desk work.
Challenges
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The long-term outlook is poor: employment is projected to drop from 12.7 thousand jobs in 2024 to 9.4 thousand by 2034, a decline of 25.9%.
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There are only about 0.9 thousand annual openings, so competition for stable jobs can be tight even when plants are hiring.
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The work is physically demanding, with lots of lifting, sand handling, and repetitive motion, which can wear on your back, shoulders, and hands.
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Foundries are hot, dirty, and noisy places, so the job often means uncomfortable conditions and strict safety habits every day.
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This is a narrow specialty with a limited career ceiling unless you move into supervision, maintenance, or another metalworking trade.
Career Progression
Foundry Helper
0-2 years
$29K-$35K
Learns plant safety, moves materials, cleans equipment, and supports the mold and core team with basic prep work.
Foundry Mold and Coremaker
2-5 years
$41K-$50K
Builds, repairs, and assembles molds and cores, checking details closely so castings come out right.
Senior Mold and Coremaker THIS ROLE
5-10 years
$50K-$59K
Handles more complex jobs, fixes tricky defects, and often helps train newer workers.
Foundry Lead or Supervisor
10+ years
$59K-$74K
Oversees a crew, keeps production moving, and watches quality, safety, and deadlines on the shop floor.
Education Paths
High school diploma or equivalent
The most common entry path, held by 64.37% of workers in this occupation.
Less than a high school diploma
A notable alternative route, held by 35.63% of workers, usually backed by strong hands-on training on the job.
Foundry or metalworking certificate
Some employers will hire people with short vocational training or a trade certificate and teach the rest through moderate-term on-the-job training.
Key Skills
Technical
Sand Molding, Core Boxes & Pattern Setup 68%
Overhead Cranes, Hoists & Rigging 64%
Gating, Sprue & Vent Layout 60%
Mold Inspection & Measuring Tools 58%
Hand Rammers, Pneumatic Rammers & Sifters 56%
Foundry Safety Procedures & Heat-Resistant PPE 52%
Soft Skills
MonitoringOperations MonitoringActive ListeningCritical ThinkingTime ManagementJudgment and Decision Making Job Outlook and Trends
+-25.9%
Projected growth (2024-2034)
0.9K
Annual job openings
Employment is projected to rise from 12.7K to 9.4 K over the next decade, representing -25.9% growth. Around 0.9 K openings per year include both newly created roles and replacement hiring from turnover.
Remote availability is currently Rare. Demand remains strongest where employers need practical domain knowledge plus modern workflow and data skills.