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7231.1 – Machinists

Machinists set up and operate a variety of machine tools to cut and grind metal, plastic and other materials to make and modify parts and products with precise dimensions.

Profile

Example titles Help

  • Automotive machinist
  • Aviation machinist
  • General machinist
  • Machinist
  • Machinist apprentice

Main characteristics Help

  • General learning ability to set up, operate and maintain a variety of machine tools including computer numerically controlled (CNC) tools for precision, non-repetitive machining operations
  • Numerical ability to compute dimensions and tolerances, and to measure and lay out work pieces
  • Spatial perception and Form perception to read and interpret engineering drawings, blueprints, charts and tables and to study sample parts in order to determine necessary machining operations
  • Finger dexterity and Manual dexterity to fit and assemble machined metal parts and subassemblies using hand and power tools
  • Objective interest in setting up and programming machine tools for use by machining tool operators when required
  • Innovative interest in performing precision machining operations such as sawing, turning, milling, boring, planing, drilling, precision grinding and other operations, and in planning best sequence of operations
  • Methodical interest in compiling information to verify dimensions of products for accuracy and conformance to specifications using precision measuring instruments

Aptitudes Help

One of five levels assigned for each factor, with levels representing normal curve distribution of the labour force:

G
General learning ability
V
Verbal ability
N
Numerical ability
S
Spatial perception
P
Form perception
Q
Clerical perception
K
Motor co-ordination
F
Finger dexterity
M
Manual dexterity
Levels legend, text description directly below.
  1. The highest 10% of the working population
  2. Upper third, exclusive of the highest 10%
  3. Middle third of the working population
  4. Lowest third, exclusive of the lowest 10%
  5. Lowest 10% of the working population

An individual's overall capacity to learn the skills needed to perform job duties is based on his or her specific aptitudes for acquiring information and transforming it into action.

General learning ability G-3

Ability to 'catch on' or understand instructions and underlying principles; to reason and make judgments.

Verbal ability V-3

Ability to understand the meaning of words and the ideas associated with them, and to use them effectively; to comprehend language, to understand relationships between words and to understand the meaning of whole sentences and paragraphs; to present information or ideas clearly.

Numerical ability N-3

Ability to carry out arithmetical processes quickly and accurately.

Spatial perception S-2

Ability to think visually about geometric forms and comprehend the two dimensional representation of three dimensional objects; to recognize the relationships resulting from the movement of objects in space. May be used in such tasks as blueprint reading and in solving geometry problems. Frequently described as the ability to 'visualize' objects of two or three dimensions.

Form perception P-2

Ability to perceive pertinent detail in objects and in pictorial and graphic material; to make visual comparisons and discriminations and to see slight differences in shapes and shadings of figures and widths and lengths of lines.

Clerical perception Q-4

Ability to perceive pertinent detail in verbal or tabular material; to observe differences in copy, to proofread words and numbers, and to avoid perceptual errors in arithmetical computation.

Motor co-ordination K-3

Ability to co-ordinate eyes, hands and fingers rapidly and accurately when required to respond with precise movements.

Finger dexterity F-2

Ability to move the fingers and manipulate small objects with the fingers rapidly and/or accurately.

Manual dexterity M-2

Ability to move the hands easily and skillfully; to work with the hands in placing and turning motions.

Interests Help

Three of five descriptive factors, assigned in order of predominance and lower case rating indicating weaker representation:

D
Directive
I
Innovative
M
Methodical
O
Objective
S
Social
Objective O

Objective persons enjoy working with tools, equipment, instruments and machinery. They like to repair and/or fabricate things from various materials according to specifications and using established techniques. Objective persons are interested in finding out how things operate and how they are built.

Innovative I

Innovative persons like to explore things in depth and arrive at solutions to problems by experimenting. They are interested in initiating and creating different ways to solve questions and present information. They enjoy scientific subjects. Innovative persons prefer to be challenged with new and unexpected experiences. They adjust to change easily.

Methodical M

Methodical persons like to have clear rules and organized methods to guide their activities. They prefer working under the direction or supervision of others according to given instructions, or to be guided by established policies and procedures. Methodical persons like to work on one thing until it is completed. They enjoy following a set routine and prefer work that is free from the unexpected.

Data, people, and things Help

Data

0
Synthesizing
1
Co-ordinating
2
Analyzing
3
Compiling
4
Computing
5
Copying
6
Comparing
7
N/A
8
Not Significant

People

0
Mentoring
1
Negotiating
2
Instructing - Consulting
3
Supervising
4
Diverting
5
Persuading
6
Speaking - Signaling
7
Serving - Assisting
8
Not significant

Things

0
Setting up
1
Precision working
2
Controlling
3
Driving - Operating
4
Operating - Manipulating
5
Tending
6
Feeding - Offbearing
7
Handling
8
Not significant
Data Compiling 3

Accumulating information usually recorded physically but which may be stored mentally; gathering, collating and classifying information about data, people and things; frequently reporting and/or carrying out a prescribed action in relation to the information.

People Not significant 8

Not significant

Things Setting up 0

Adjusting machines or equipment by replacing or altering tools, jigs, fixtures and attachments to prepare them for operation, change performance or restore proper functioning if they break down.

Physical activities Help

V - Vision

1
Close visual acuity
2
Near vision
3
Near and far vision
4
Total visual field

H - Hearing

1
Limited
2
Verbal interaction
3
Other sound discrimination

L - Limb co-ordination

0
Not relevant
1
Upper limb co-ordination
2
Multiple limb co-ordination

C - Colour discrimination

0
Not relevant
1
Relevant

B - Body position

1
Sitting
2
Standing and/or walking
3
Sitting, standing, walking
4
Other body positions

S - Strength

1
Limited
2
Light
3
Medium
4
Heavy
Vision Vision V-1

The use of sight in the work performed. The levels are organized in terms of the visual field involved in the performance of the work.

1 - Close visual acuity

Some or all work activities are performed close to the worker. The scope of the visual field is confined and requires close attention to detail.

Occupations where one or more of the Main Duties require close visual acuity are coded at this level. Other Main Duties in the unit group may involve other types of vision – for example, Near and far vision (3) or Total visual field (4).

Examples:

  • assembling micro-circuit boards
  • machining to close tolerances
  • cutting gems
  • performing surgical procedures
Colour discrimination Colour discrimination C-0

The use of colour descrimination to identify, distinguish and match colours and different shades of the same colours.

0 - Not relevant

Colour discrimination is not relevant in the performance of the work.

Examples:

  • cleaning windows
  • providing information over the telephone
  • interviewing, hiring and overseeing staff training
  • translating documents
Hearing Hearing H-1

The use of hearing in the work performed. The levels are organized in terms of the type of auditory discrimination involved in the performance of the work.

1 - Limited

Hearing is limited to short and/or infrequent verbal interactions in order to perform the work.

Examples:

  • typing and proofreading correspondence
  • cutting and trimming meat, poultry and fish according to customers' orders
  • carrying linen to and from laundry areas and running errands
  • assisting mine workers in constructing underground installations
Body position Body position B-4

Primary type of posture or body movement involved in performing the work. These postures or body movements range from simple to complex and from sedentary to mobile.

4 - Other body positions

Work activities involve body postures other than, or in addition to, Sitting (1) and Standing and/or walking (2) such as bending, stooping, kneeling and crouching

Examples:

  • performing labouring duties in warehouses
  • measuring, cutting and installing carpeting
  • adjusting, repairing or replacing parts and components of automotive systems
  • treating patients' disorders of the spine and body through corrective manipulation
Limb co-ordination Limb co-ordination L-1

The use of limbs in performing work.

1 - Upper limb co-ordination

Work activities involve co-ordination of upper limbs.

Examples:

  • keyboarding
  • performing maintenance services such as oil changes, lubrications and tune-ups
  • operating video cameras
  • instructing students in sign language
Strength Strength S-3

The use of strength in the handling of loads such as pulling, pushing, lifting and/or moving objects during the work performed.

3 - Medium

Work activities involve handling loads between 10 kg and 20 kg.

Examples:

  • setting up and operating finishing machines or finishing furniture by hand
  • measuring, cutting and applying wallpaper to walls
  • adjusting, replacing or repairing mechanical or electrical components using hand tools and equipment
  • operating film cameras to record live events

Environmental conditions Help

Location

L1
Regulated inside climate
L2
Unregulated inside climate
L3
Outside
L4
In a vehicle or cab

Hazards

H1
Dangerous chemical substances
H2
Biological agents
H3
Equipment, machinery, tools
H4
Electricity
H5
Radiation
H6
Flying particles, falling objects
H7
Fire, steam, hot surfaces
H8
Dangerous locations

Discomforts

D1
Noise
D2
Vibration
D3
Odours
D4
Non-toxic dusts
D5
Wetness
Discomforts Noise D1

Work conditions that create disturbances but are not hazardous. In general, these conditions create discomfort, but are not direct sources of injury. In extreme instances, however, these conditions might cause injury.

D1 - Noise

Work that produces sufficient noise – constant or intermittent – to cause marked distraction or possible loss of hearing.

Examples:

  • operating drilling equipment in underground mines
  • using power saws in logging operations
  • blasting rock surface in mining
  • operating heavy equipment for construction jobs
  • using firearms
Hazards Equipment, machinery, tools H3

Potential hazards to which the worker may be exposed. The codes provide an indication of the type(s) of hazard(s) most likely to be present in the workplace environment. They are not a measure of frequency, duration or degree of exposure to hazards, but an indication of the presence or absence of a particular hazard in the work environment.

H3 - Equipment, machinery, tools

Working near or with equipment, instruments, machinery or power/hand tools that may be a potential source of accident or injury.

Examples:

  • operating metal machining tools to shape metal
  • using hand tools to fabricate wood products
  • operating power saws to thin trees
  • performing surgical procedures
Hazards Flying particles, falling objects H6

Potential hazards to which the worker may be exposed. The codes provide an indication of the type(s) of hazard(s) most likely to be present in the workplace environment. They are not a measure of frequency, duration or degree of exposure to hazards, but an indication of the presence or absence of a particular hazard in the work environment.

H6 - Flying particles, falling objects

Exposure to flying particles and falling objects in the work environment that pose the risk of bodily injury.Flying particles refer to particles such as wood chips, metal particles and rock chips generated by the handling, crushing, grinding, rapid impact or explosion of materials.

Examples:

  • operating machining tools such as lathes/grinders
  • constructing underground installations in mines using hand and power tools
  • operating chain saws to fell, delimb and buck trees
  • operating hoisting devices to load cargo onto ships
  • laying brick to construct or repair walls
Location Regulated inside climate L1

The work performed is carried out indoors in a regulated environment, indoors in an unregulated environment, outdoors or in a vehicle. In many occupations, the Main Duties may be performed in more than one location. Therefore, a group may have more than one Location code, for example:

  • firefighting and fire prevention duties
  • maintenance of interior/exterior of buildings
  • managing operations and paperwork of farms

L1 - Regulated inside climate

A normal controlled environment such as an office, hospital or school.

Employment requirements Help

Education/training Help

1
No formal education or training requirements
2
Some high school education and/or on the job training or experience
3
High school
4
Course work, training, workshops and/or experience related to the occupation
5
Apprenticeship, specialized training, vocational school training
6
College, technical school (certificate, diploma)
7
Undergraduate degree
8
Post-graduate or professional degree
+
Additional requirement beyond education and training
R
Regulated requirement(s)
4+, 5, R
  • Completion of secondary school is usually required.
  • Completion of a four-year apprenticeship program
    or
    a combination of over four years of work experience and industry courses in machining may be required for trade certification.
  • Trade certification for machinists is available, but voluntary, in all provinces and territories.
  • Trade certification for machinists (CNC) is available, but voluntary, in New Brunswick, Quebec and Manitoba.
  • Red Seal endorsement is also available to qualified machinists upon successful completion of the interprovincial Red Seal examination.

Workplaces/employers Help

  • Machine shops
  • Machinery, equipment, motor vehicle, automotive parts, aircraft and other metal products manufacturing companies

Occupational options Help

  • Familiarity with exotic and composite materials may be required for machinists in aviation and other advanced manufacturing sectors.
  • Progression to supervisory positions is possible with experience.
  • The Red Seal endorsement allows for interprovincial mobility.

Exclusions Help

Breakdown summary

Broad occupational category
7 – Trades, transport and equipment operators and related occupations
Skill level
B – Occupations usually require college education, specialized training or apprenticeship training
Minor group
72 – Industrial, electrical and construction trades
Minor group
723 – Machining, metal forming, shaping and erecting trades
Unit group
7231 – Machinists and machining and tooling inspectors
Version
NOC 2016 Version 1.3
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