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Manufacturing51-2031.00Specialization

Engine and Other Machine Assemblers

Construct, assemble, or rebuild machines, such as engines, turbines, and similar equipment used in such industries as construction, extraction, textiles, and paper manufacturing.

$50,270
Median Pay
Less than 6 months
Training
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In Transition
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This is a specialization of

Assemblers & Fabricators

Career Overview Video

AI Impact Assessment

AI Resilience Score

Score 2/6: low AI task exposure, declining job demand, limited human advantage indicates this career is being transformed by AI

🟠In Transition

How we calculated this:

AI Exposure
Low+2

10% of tasks can be accelerated by AI

Job Growth
Declining+0

-21% projected (2024-2034)

Human Advantage
Weak+0

EPOCH score: 8/25

Total Score2/6
Methodology: v2.0 - GPTs are GPTs / BLS / EPOCH Additive ScoringUpdated: 2026-01-09
View full methodology →

Key Responsibilities

  • Read and interpret assembly blueprints or specifications manuals, and plan assembly or building operations.
  • Inspect, operate, and test completed products to verify functioning, machine capabilities, or conformance to customer specifications.
  • Position or align components for assembly, manually or using hoists.
  • Set and verify parts clearances.
  • Verify conformance of parts to stock lists or blueprints, using measuring instruments such as calipers, gauges, or micrometers.
  • Fasten or install piping, fixtures, or wiring and electrical components to form assemblies or subassemblies, using hand tools, rivet guns, or welding equipment.
  • Remove rough spots and smooth surfaces to fit, trim, or clean parts, using hand tools or power tools.
  • Lay out and drill, ream, tap, or cut parts for assembly.
  • Rework, repair, or replace damaged parts or assemblies.

Education & Training

Typical Entry Education

High school diploma or equivalent

Time to Job Ready

0-1 years

Based on Job Zone 2. For formal education duration only, see education_duration.

Technology Skills

CAD software (SolidWorks)Microsoft ExcelERP systems (SAP)Blueprint reading softwareQuality inspection systems

Key Abilities

Arm-Hand SteadinessManual DexterityFinger DexterityNear VisionVisualizationProblem SensitivityInformation OrderingControl PrecisionMultilimb CoordinationStatic Strength

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Compensation Details

$36,250
10th Percentile
$50,270
Median
$72,160
90th Percentile

Based on 47,960 employed workers

Also Known As

Air Conditioning Coil Assembler (AC Coil Assembler)Aircraft Engine AssemblerAircraft Power Plant AssemblerAircraft Powerplant AssemblerAssemblerAssembler ErectorAssembling Motor BuilderAssembly Line WorkerAutomation Machine BuilderAutomobile Engine Assembler

Data from O*NET 30.1 and BLS Occupational Employment Statistics

O*NET Code: 51-2031.00