Crushing, grinding, and polishing machine setters, operators, and tenders
SOC Code: 51-9021
Crushing, grinding, and polishing machine setters, operators, and tenders carries a 35% AI exposure score (Medium automation risk), with a median annual wage of $46,890 and -2.5% projected employment growth from 2024 to 2034 (BLS), affecting approximately 28,700 workers. Full task breakdown, skills, and employer data are below.
Proportion of tasks susceptible to AI automation (O*NET analysis)
At 35% AI exposure, Crushing, grinding, and polishing machine setters, operators, and tenders sits 2 points below the 37.2% average across 832 U.S. occupations - more exposed than 46% of them. Most of its core tasks still require human judgment.
Where Crushing, grinding, and polishing machine setters, operators, and tenders sits among all occupations
AI-exposure score distribution across 832 U.S. occupations (O*NET task analysis). This occupation is marked in rose.
Crushing, grinding, and polishing machine setters, operators, and tenders has ai exposure of 35%. Distribution: 1 occupations at 0-10%; 43 occupations at 10-20%; 184 occupations at 20-30%; 332 occupations at 30-40%; 158 occupations at 40-50%; 64 occupations at 50-60%; 29 occupations at 60-70%; 15 occupations at 70-80%; 5 occupations at 80-90%; 1 occupations at 90-100%.
Source: O*NET task data (U.S. Department of Labor); AI-exposure scores are PlainWorkforce's analysis. As of BLS 2024–2034.
Crushing, grinding, and polishing machine setters, operators, and tenders vs. its occupational neighbors
AI exposure (horizontal) vs projected 2024–2034 growth (vertical) for occupations in the same SOC group. Crushing, grinding, and polishing machine setters, operators, and tenders is marked in rose; the top-left corner is the most future-proof.
Source: BLS Employment Projections 2024–2034 (growth) and O*NET (AI-exposure analysis by PlainWorkforce).
Employment Projections
Occupation Insight
Crushing, grinding, and polishing machine setters, operators, and tenders (SOC 51-9021) carries an AI exposure score of 35%, placing it in the Medium automation-risk tier. This score is computed from O*NET Database 30.0 task-level analysis, where each task an occupation performs is evaluated against current generative AI, robotic process automation, and machine-learning capabilities. A score below 40% reflects tasks anchored in physical dexterity, unstructured environments, or high-touch human interaction that current AI cannot reliably replicate.
The economic context matters alongside the risk score. BLS counted approximately 28,700 workers in this occupation in 2024, and projects a -2.5% change through 2034 - a decline that often compounds with high AI exposure to create displacement headwinds. Median annual compensation stands at $46,890, reflecting both skill scarcity and the value employers place on the tasks that remain difficult to automate. Entry typically requires High school diploma or equivalent, plus None of related experience.
For career planners, this profile should be read alongside the task, skill, and knowledge breakdowns below and the list of employers whose workforce composition includes Crushing, grinding, and polishing machine setters, operators, and tenders. Adjacent occupations shown further down offer lateral moves that preserve industry knowledge while potentially reducing exposure. Pair the AI exposure score with the BLS employment projection and wage percentiles above for a complete career assessment.
Education & Entry Requirements
Top Tasks (O*NET)
- 1. Observe operation of equipment to ensure continuity of flow, safety, and efficient operation, and to detect malfunctions.
- 2. Clean, adjust, and maintain equipment, using hand tools.
- 3. Tend accessory equipment, such as pumps and conveyors, to move materials or ingredients through production processes.
- 4. Move controls to start, stop, or adjust machinery and equipment that crushes, grinds, polishes, or blends materials.
- 5. Notify supervisors of needed repairs.
- 6. Weigh or measure materials, ingredients, or products at specified intervals to ensure conformance to requirements.
- 7. Test samples of materials or products to ensure compliance with specifications, using test equipment.
- 8. Mark bins as to types of mixtures stored.
- 9. Transfer materials, supplies, and products between work areas, using moving equipment and hand tools.
- 10. Add or mix chemicals and ingredients for processing, using hand tools or other devices.
Key Skills Required
- Operations Monitoring
- Operation and Control
- Monitoring
- Quality Control Analysis
- Reading Comprehension
- Active Listening
- Speaking
- Coordination
- Judgment and Decision Making
- Time Management
Knowledge Areas
- Administration and Management
- Production and Processing
- English Language
- Education and Training
- Public Safety and Security
- Mathematics
- Mechanical
- Administrative
- Customer and Personal Service
- Computers and Electronics
Frequently Asked Questions
Will AI replace Crushing, grinding, and polishing machine setters, operators, and tenders?
Crushing, grinding, and polishing machine setters, operators, and tenders has an AI exposure score of 35%, indicating a medium level of automation risk. The majority of tasks in this role require human judgment, creativity, or physical presence that AI cannot easily replicate.
What is the job outlook for Crushing, grinding, and polishing machine setters, operators, and tenders?
According to BLS Employment Projections 2024-2034, Crushing, grinding, and polishing machine setters, operators, and tenders is projected to decline by 2.5% over the decade. Current employment stands at approximately 28,700 workers.
What skills are needed for Crushing, grinding, and polishing machine setters, operators, and tenders?
Key skills for Crushing, grinding, and polishing machine setters, operators, and tenders include Operations Monitoring, Operation and Control, Monitoring, and others. Typical entry-level education is High school diploma or equivalent.
How much do Crushing, grinding, and polishing machine setters, operators, and tenders earn?
The median annual wage for Crushing, grinding, and polishing machine setters, operators, and tenders is $46,890, according to BLS Occupational Employment and Wage Statistics (May 2024). Actual earnings vary by location, experience, industry, and employer. The BLS publishes detailed wage percentiles by region in its Occupational Employment and Wage Statistics program.
What education is required for Crushing, grinding, and polishing machine setters, operators, and tenders?
The typical entry-level education for Crushing, grinding, and polishing machine setters, operators, and tenders is High school diploma or equivalent. Employers generally expect None of related work experience. On-the-job training typically involves Moderate-term on-the-job training. Requirements can vary by employer and specialization.
Which companies employ Crushing, grinding, and polishing machine setters, operators, and tenders?
Crushing, grinding, and polishing machine setters, operators, and tenders roles exist across many industries and employers. Workforce composition is estimated from BLS industry-occupation employment distributions matched to SEC-registered public companies.
AI Exposure Rating
Medium automation risk based on 10 analyzed tasks. Most tasks require human judgment and are resistant to automation.
Related Occupations
Career Guides
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Data sources: Bureau of Labor Statistics Employment Projections 2024–2034 and O*NET Database 30.0. Employment figures are rounded. Wage data from BLS Occupational Employment Statistics (OES).