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OaSIS 2025 Version 1.0
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72405.00 – Machine fitters

Machine fitters fit, assemble and otherwise build heavy industrial machinery and transportation equipment, including aircraft engines.

Overview

Example job titles

  • Aircraft engine fitter
  • Assembly fitter
  • Heavy equipment fitter
  • Machine builder
  • Machine fitter
  • Machine tool builder
  • Mechanical fitter

Core competencies

  • Setting Up to enhance efficiency and accuracy in the assembly process by preparing tools, equipment and workspaces appropriately
  • Quality Control Testing to ensure assembled machinery meets performance and safety standards, regularly verifying proper functionality, alignment and adherence to specifications
  • Multi-Limb Coordination to accurately and efficiently handle tools and parts simultaneously, such as holding components in place while operating machinery or tools
  • Depth Perception to accurately gauge the distance between parts and components and their exact dimensions, which is essential for a precise assembling and fitting
  • Attention to Detail to ensure all components are assembled accurately and fitted precisely according to specifications
  • Knowledge in Mechanics and Machinery to adhere to technical specifications, as well as to understand the tolerances of the parts used and the proper procedures for installing and assembling machinery

Main duties

This group performs some or all of the following duties:

  • Read and interpret blueprints, sketches and diagrams to determine assembly operations
  • Fit and assemble prefabricated metal parts to build heavy industrial machinery and equipment such as construction, farming, and processing machinery, railway vehicles and aircraft engines
  • Move and align subassemblies and components using lifting and transporting devices such as overhead cranes
  • Install major components such as gears, pumps, motors or hydraulic assemblies
  • Inspect parts, subassemblies and finished products to ensure quality.

Additional information

  • Progression to supervisory positions is possible with experience.

Similar occupations classified elsewhere

Exclusions:

  • Aircraft assemblers (93200.01)
  • Assemblers, fabricators and inspectors, industrial electrical motors and transformers (94203)
  • Mechanical assemblers and inspectors (94204)
  • Welders and related machine operators (72106)

NOC hierarchy breakdown

NOC version

NOC 2021 Version 1.0

Broad occupational category

7 – Trades, transport and equipment operators and related occupations

TEER

2 – Occupations usually require a college diploma or apprenticeship training of two or more years; or supervisory occupations

Major group

72 – Technical trades and transportation officers and controllers

Sub-major group

724 – Technical maintenance trades

Minor group

7240 – Machinery and transportation equipment mechanics (except motor vehicles)

Unit group

72405 – Machine fitters

Occupational profile

72405.00 – Machine fitters

O*NET in-it

This page includes information from the O*NET 27.2 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA). Used under the CC BY 4.0 license. O*NET® is a trademark of USDOL/ETA. Employment and Social Development Canada has modified all or some of this information. USDOL/ETA has not approved, endorsed, or tested these modifications.