Manufacturing & ProductionISCO 7223
Computer numerical control machine operator
Computer numerical control machine operators set-up, maintain and control a computer numerical control machine in order to execute the product orders. They are responsible for programming the machines, ensuring the required parameters and measurements are met while maintaining the quality and safety standards.
Check yourself in a minute: computer numerical control machine operator
Rate 5 of the 19 essential skills of this occupation (European ESCO data). No account needed.
supply machine with appropriate tools
remove inadequate workpieces
troubleshoot
remove processed workpiece
perform test run
About computer numerical control machine operator
As a computer numerical control machine operator, you will be responsible for setting up, programming, and operating CNC machines that manufacture precision metal and composite parts. Your day-to-day work involves reading technical blueprints, programming machine parameters, performing test runs, and monitoring automated processes to ensure components meet exact specifications and quality standards. You will troubleshoot equipment issues, perform routine maintenance, use precision measuring equipment to verify dimensions, and manage the supply of cutting tools and materials to keep production running smoothly. Your role is critical to manufacturing operations, as any errors can result in costly material waste or product defects that affect downstream assembly and customer satisfaction.
Key Work Functions
Core areas of responsibility for a computer numerical control machine operator.
1
Machine Setup and Programming
- Program CNC controller with part specifications and cutting parameters using CAM software
- Set up machine tools, fixtures, and workholding devices according to job requirements
- Perform test runs and verify that all parameters produce correct specifications
- Consult technical resources and blueprints to understand part geometry and tolerance requirements
2
Quality Control and Measurement
- Operate precision measuring equipment such as calipers, micrometers, and coordinate measuring machines
- Monitor statistical process control data to identify trends and prevent defects
- Inspect finished parts against specifications and remove inadequate workpieces
3
Machine Maintenance and Troubleshooting
- Perform preventive maintenance including cleaning, lubrication, and inspection of machine components
- Troubleshoot mechanical and electrical problems and make necessary adjustments
- Ensure equipment availability by monitoring tool wear and replacing cutting tools as needed
4
Workpiece Management
- Supply machine with appropriate tools, stock material, and fixtures
- Load and unload workpieces safely and efficiently
- Remove and inspect processed workpieces and manage material waste
European Skills Framework
Skills and knowledge areas required for this occupation based on European classification.
Essential (19)
statistical process controlstatistical process controlMethod of quality control that uses statistics to monitor processes.manufacturing processesmanufacturing processesThe steps required through which a material is transformed into a product, its development and full-scale manufacturing.quality standardsquality standardsThe national and international requirements, specifications and guidelines to ensure that products, services and processes are of good quality and fit for purpose.supply machine with appropriate toolssupply machine with appropriate toolsSupply the machine with the necessary tools and items for a particular production purpose. Monitor the stock and replenish when needed.remove inadequate workpiecesremove inadequate workpiecesEvaluate which deficient processed workpieces do not meet the set-up standard and should be removed and sort the waste according to regulations.troubleshoottroubleshootIdentify operating problems, decide what to do about it and report accordingly.remove processed workpieceremove processed workpieceRemove individual workpieces after processing, from the manufacturing machine or the machine tool. In case of a conveyor belt this involves quick, continuous movement.perform test runperform test runPerform tests putting a system, machine, tool or other equipment through a series of actions under actual operating conditions in order to assess its reliability and suitability to realise its tasks, ...ensure equipment availabilityensure equipment availabilityEnsure that the necessary equipment is provided, ready and available for use before start of procedures.use CAM softwareuse CAM softwareUse computer-aided manufacturing (CAM) programmes to control machinery and machine tools in the creation, modification, analysis, or optimisation as part of the manufacturing processes of workpieces.use automatic programminguse automatic programmingUtilise specialised software tools to generate computer code from specifications, such as diagrams, structured informations or other means of describing functionality.perform machine maintenanceperform machine maintenancePerform regular maintenance, possibly including corrections and alterations, on a machine or machine tool to ensure it remains in a proper productive state.supply machinesupply machineEnsure the machine is fed the necessary and adequate materials and control the placement or automatic feed and retrieval of work pieces in the machines or machine tools on the production line.consult technical resourcesconsult technical resourcesRead and interpret technical resources such as digital or paper drawings and adjustment data in order to properly set up a machine or working tool, or to assemble mechanical equipment.program a CNC controllerprogram a CNC controllerSet up the desired product design in the CNC controller of the CNC machine for product manufacturing.set up the controller of a machineset up the controller of a machineSet up and give commands to a machine by dispatching the appropriate data and input into the (computer) controller corresponding with the desired processed product.monitor automated machinesmonitor automated machinesContinuously check up on the automated machine's set-up and execution or make regular control rounds. If necessary, record and interpret data on the operating conditions of installations and equipment...read standard blueprintsread standard blueprintsRead and comprehend standard blueprints, machine, and process drawings.operate precision measuring equipmentoperate precision measuring equipmentMeasure the size of a processed part when checking and marking it to check if it is up to standard by use of two and three dimensional precision measuring equipment such as a caliper, a micrometer, an...
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The man...precious metal processingprecious metal processingVarious processing methods on precious metals such as gold, silver and platinum.tend electron beam welding machinetend electron beam welding machineTend a metalworking machine designed to join metal pieces by use of an electron beam exuding a concentrated heat source, monitor and operate it according to regulations.work ergonomicallywork ergonomicallyApply ergonomy principles in the organisation of the workplace while manually handling equipment and materials.tend water jet cutter machinetend water jet cutter machineTend a jet cutter machine, operating and monitoring the machine, according to regulations.prepare pieces for joiningprepare pieces for joiningPrepare metal or other material workpieces for joining processes by cleaning the workpieces, checking their measurements with the technical plan and marking on the pieces where they'll be joined.use spreadsheets softwareuse spreadsheets softwareUse software tools to create and edit tabular data to carry out mathematical calculations, organise data and information, create diagrams based on data and to retrieve them.inspect quality of productsinspect quality of productsUse various techniques to ensure the product quality is respecting the quality standards and specifications. Oversee defects, packaging and sendbacks of products to different production departments.determine suitability of materialsdetermine suitability of materialsWhile designing products, determine if materials are suitable and available for production.monitor gaugemonitor gaugeOversee the data presented by a gauge concerning the measurement of pressure, temperature, thickness of a material, and others.record production data for quality controlrecord production data for quality controlKeep records of the machine's faults, interventions and irregularities for quality control.apply preliminary treatment to workpiecesapply preliminary treatment to workpiecesApply preparatory treatment, through mechanical or chemical processes, to the workpiece preceding the main operation.ensure necessary ventilation in machiningensure necessary ventilation in machiningTurn on the ventilation systems, such as a vacuum pump or blower, of a manufacturing machine in order to remove noxious fumes, smoke, dust, or for other removal of debris from the surface of the workp...operate welding equipmentoperate welding equipmentUse welding equipment to melt and join together pieces of metal or steel, wearing protective eyewear during the working process.spot metal imperfectionsspot metal imperfectionsObserve and identify various kinds of imperfections in metal workpieces or finished products. Recognise the best fitted manner of fixing the problem, which could be caused by corrosion, rust, fracture...perform product testingperform product testingTest processed workpieces or products for basic faults.apply isopropyl alcoholapply isopropyl alcoholUse isopropyl alcohol in order to improve the morphology and therefore the surface quality of the engraved material in a moderate and safe manner.monitor stock levelmonitor stock levelEvaluate how much stock is used and determine what should be ordered.tend CNC milling machinetend CNC milling machineTend a computer numerical controlled (CNC) milling machine designed for cutting manufacturing processes on metal, wooden, plastic materials and others, monitor and operate it, according to regulations...dispose of cutting waste materialdispose of cutting waste materialDispose of possibly hazardous waste material created in the cutting process, such as swarf, scrap and slugs, sort according to regulations, and clean up workplace.wear appropriate protective gearwear appropriate protective gearWear relevant and necessary protective gear, such as protective goggles or other eye protection, hard hats, safety gloves.monitor conveyor beltmonitor conveyor beltMonitor the flow of the work pieces on the conveyor belt as they are processed by the machine to ensure optimal productivity.operate metal sheet shakeroperate metal sheet shakerOperate shaker by opening up an air valve allowing for slugs, the parts of the workpiece punched out, to fall into the shaker and be mixed and shaken before they're either recycled and reused or disca...apply cross-reference tools for product identificationapply cross-reference tools for product identificationEmploy cross-reference tools and programmes, listing file names and line numbers, to identify part numbers, descriptions, and the vendor as source of origin.tend CNC grinding machinetend CNC grinding machineTend a computer numerical controlled (CNC) grinding machine designed for manufacturing processes on metal, wooden, plastic materials and others, monitor and operate it, according to regulations.procure mechanical machineryprocure mechanical machineryProcure adequate machinery. Research the market to find the best machinery, staying within budget limits, and negotiate the purchase. Maintain records.tend punch presstend punch pressTend a punch press, monitor and operate it, according to regulations.advise on machinery malfunctionsadvise on machinery malfunctionsOffer advice to service technicians in case of machinery malfunctions and other technical repair tasks.mark processed workpiecemark processed workpieceInspect and mark parts of the workpiece to indicate how they will fit into the finished product.maintain mechanical equipmentmaintain mechanical equipmentObserve and listen to machinery operation to detect malfunction. Service, repair, adjust, and test machines, parts, and equipment that operate primarily on the basis of mechanical principles. Maintain...ensure correct gas pressureensure correct gas pressureEnsure the necessary, usually constant, pressure of gas which is part of a machine or tool, such as torching equipment, used to process metal workpieces during metal fabrication processes.operate printing machineryoperate printing machineryOperate machinery for various types of printed documents, adjusting the font, paper size, and weight. This allows ascenders and descenders to be correctly placed.apply precision metalworking techniquesapply precision metalworking techniquesComply with precision standards specific to an organisation or product in metalworking, involved in processes such as engraving, precise cutting, welding.tend CNC laser cutting machinetend CNC laser cutting machineMonitor and operate a computer numerical controlled (CNC) laser cutting machine according to regulations.use CAD softwareuse CAD softwareUse computer-aided design (CAD) systems to assist in the creation, modification, analysis, or optimisation of a design.smooth burred surfacessmooth burred surfacesInspect and smooth burred surfaces of steel and metal parts.ensure correct metal temperatureensure correct metal temperatureEnsure the necessary, usually constant, temperature of processed metal workpieces during metal fabrication processes.tend laser beam welding machinetend laser beam welding machineTend a metalworking machine designed to join metal pieces by use of a laser beam exuding a concentrated heat source, monitor and operate it according to regulations.tend computer numerical control lathe machinetend computer numerical control lathe machineTend a computer numerical controlled (CNC) lathe and turn machine designed for cutting manufacturing processes on metal, wooden, plastic materials and others, monitor and operate it, according to regu...replace machinesreplace machinesEvaluate when to invest in replacing machines or machine tools and take the necessary actions.keep records of work progresskeep records of work progressMaintain records of the progress of the work including time, defects, malfunctions, etc.interpret geometric dimensions and tolerancesinterpret geometric dimensions and tolerancesUnderstand and assess the models and symbolic language of Geometric Dimensioning and Tolerancing (GD&T) systems indicating engineering tolerances.liaise with managersliaise with managersLiaise with managers of other departments ensuring effective service and communication, i.e. sales, planning, purchasing, trading, distribution and technical.adjust temperature gaugesadjust temperature gaugesOperate temperature gauges to maintain food and drink items at appropriate temperatures.tend metal sawing machinetend metal sawing machineTend sawing machine designed for metal cutting processes, monitor and operate it, according to regulations.operate 3D computer graphics softwareoperate 3D computer graphics softwareUse graphical ICT tools, such as Autodesk Maya, Blender which enable digital editing, modelling, rendering and composition of graphics. These tools are based in mathematical representation of three-di...tend CNC engraving machinetend CNC engraving machineMonitor and operate a computer numerical controlled (CNC) engraving machine according to regulations.operate scrap vibratory feederoperate scrap vibratory feederOperate a vibratory feeder which gradually feeds scrap or other waste material into a bin.types of metal manufacturing processestypes of metal manufacturing processesMetal processes linked to the different types of metal, such as casting processes, heat treatment processes, repair processes and other metal manufacturing processes.replace sawing blade on machinereplace sawing blade on machineReplace the old blade of a sawing machine with a new one by removing the chip brush, taking away the front blade guide, loosening the blade tension and removing the blade. Assemble and install new bla...ErlangErlangThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Erlang.electron beam welding processeselectron beam welding processesThe various processes of welding using electron beams, such as electron beam focusing, beam defelection, penetration, and others.laser marking processeslaser marking processesThe various engraving processes employing lasers to make incisions, such as raster engraving, vector engraving, and others.ScalaScalaThe techniques and principles of software development, such as analysis, algorithms, coding, testing and compiling of programming paradigms in Scala.apply control process statistical methodsapply control process statistical methodsApply statistical methods from Design of Experiments (DOE) and Statistical Process Control (SPC) in order to control manufacturing processes.
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Frequently asked questions
What does a computer numerical control machine operator do?
Computer numerical control machine operators set-up, maintain and control a computer numerical control machine in order to execute the product orders. They are responsible for programming the machines, ensuring the required parameters and measurements are met while maintaining the quality and safety standards.
What skills does a computer numerical control machine operator need?
A computer numerical control machine operator needs 19 essential skills, including statistical process control, manufacturing processes, quality standards, supply machine with appropriate tools, remove inadequate workpieces.
Will AI replace computer numerical control machine operator jobs?
The AI disruption score for computer numerical control machine operator is 48/100 (moderate risk). Skills most exposed to automation: geometry, record production data for quality control, remove processed workpiece. Most resilient: laser types, electricity, operate welding equipment.
AI Replacement Risk
48/ 100
Moderate Risk
Low riskHigh risk
Quick Facts
ISCO GroupMetal, machinery and related trades workers
Essential Skills19
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