Product Overview

Summary: This CNC Operation Safe Operating Procedure provides a clear, step-by-step framework for setting up and running CNC machinery safely in Australian workplaces. It helps control high‑risk hazards such as entanglement, ejection of workpieces, noise, and manual handling, while supporting WHS compliance and consistent, high‑quality machining outcomes.

Computer Numerical Control (CNC) machines are central to modern manufacturing, but they also present significant safety risks when not operated within a robust, documented system of work. This CNC Operation Safe Operating Procedure translates WHS obligations and technical requirements into practical, easy-to-follow instructions for Australian workshops, fabrication shops, joineries and manufacturing facilities. It covers the full workflow from pre-start inspection and program verification through to safe operation, monitoring, shutdown and housekeeping.

By implementing this SOP, businesses gain a consistent, defensible method for managing hazards such as entanglement with rotating components, flying chips, noise, dust, coolant exposure and unexpected machine movement. It supports duty holders under WHS legislation by clarifying roles and responsibilities, standardising operator training, and integrating lock out–tag out (LOTO), guarding, and emergency stop practices into day-to-day operations. The procedure also supports productivity by reducing unplanned downtime, tool damage and scrap through disciplined setup, validation and post-job checks, all while keeping workers safe and confident around complex CNC equipment.

Key Benefits

• Ensure safe, consistent operation of CNC machinery across shifts and sites.
• Reduce the risk of serious injuries from entanglement, ejected workpieces and unexpected machine movement.
• Support compliance with Australian WHS legislation, guarding requirements and plant safety duties.
• Standardise training for new and existing CNC operators, reducing errors and rework.
• Minimise unplanned downtime and equipment damage through structured pre-start, setup and shutdown checks.

Who is this for?

• CNC Operators
• Production Supervisors
• Workshop Managers
• Manufacturing Engineers
• WHS Managers
• Maintenance Technicians
• Apprentices and Trainees in Metal and Wood Trades

Hazards Addressed

• Entanglement with rotating spindles, chucks, tool holders and moving components
• Impact from ejected workpieces, broken tools, chips or swarf
• Crush and pinch injuries from moving axes, tool changers and workholding devices
• Exposure to metal chips, wood dust, composite dust and associated respiratory hazards
• Exposure to coolants, lubricants and cleaning chemicals causing skin or eye irritation
• Noise-induced hearing loss from prolonged CNC machine operation
• Electric shock or burns from faulty electrical components or unsafe maintenance practices
• Slips, trips and falls due to coolant spills, swarf accumulation and poor housekeeping
• Fire risk from hot chips, flammable coolants or machining combustible materials
• Manual handling injuries from lifting and positioning heavy workpieces, jigs and fixtures

Included Sections

• 1.0 Purpose and Scope
• 2.0 References, Legislative and Standards Framework
• 3.0 Definitions and Types of CNC Machines Covered
• 4.0 Roles, Responsibilities and Competency Requirements
• 5.0 Required PPE and Safety Equipment
• 6.0 Machine Guarding, Interlocks and Safety Devices
• 7.0 Pre-Start Inspections and Area Housekeeping
• 8.0 Program Verification, Simulation and Dry Runs
• 9.0 Workpiece, Tooling and Workholding Setup
• 10.0 Safe Operating Procedure – Normal Operation
• 11.0 Managing Tool Changes, Offsets and Adjustments
• 12.0 Handling Jams, Alarms and Abnormal Conditions
• 13.0 Shutdown, Cleaning and Post-Operation Checks
• 14.0 Lock Out–Tag Out (LOTO) for Maintenance and Cleaning
• 15.0 Hazard Identification and Risk Controls Specific to CNC Operation
• 16.0 Emergency Procedures and Use of Emergency Stops
• 17.0 Training, Induction and Competency Assessment
• 18.0 Inspection, Maintenance and Recordkeeping Requirements
• 19.0 Review, Consultation and Continuous Improvement

Legislation & References

• Work Health and Safety Act 2011 (Cth and relevant state/territory variants)
• Work Health and Safety Regulation 2011 (Cth and relevant state/territory variants)
• Safe Work Australia – Code of Practice: Managing risks of plant in the workplace
• Safe Work Australia – Code of Practice: How to manage work health and safety risks
• AS 4024 series: Safety of machinery
• AS/NZS 4801: Occupational health and safety management systems (superseded but still widely referenced)
• AS/NZS 1269 series: Occupational noise management
• AS/NZS 1715: Selection, use and maintenance of respiratory protective equipment
• AS/NZS 2161 series: Occupational protective gloves
• AS/NZS 1337.1: Personal eye protection