AS 4024 Cartoner Machine Safety Upgrades

AS 4024 Cartoner Machine Safety Upgrades

AS 4024–compliant safety upgrades for cartoner machines, including risk assessments, emergency stops, interlocks and safety PLC retrofits.

AS 4024 Compliant Cartoner Machine Safety Upgrades

Cartoner machines are rarely static assets. Format changes, throughput increases, and incremental automation upgrades steadily alter the conditions under which they operate.

As a result, AS4024 compliance depends less on original design intent and more on whether the current mechanical, electrical, and control arrangements behave predictably under all operating and fault conditions. In Australian manufacturing environments, cartoners are commonly retained through mechanical refurbishment and control modifications rather than full replacement. Over time, this introduces gaps against the Australian AS 4024 Safety of Machinery Standards, particularly where safety functions have not been reassessed following automation or process changes.

Common Safety Risks In Cartoner Machines

Cartoner machines present well-defined risk zones associated with magazine loading, carton erection, product insertion, closing, and discharge. These risks are often increased where cartoners interface with upstream equipment such as a filling machine or downstream systems including a wrap-around case packer, particularly where a shared line control system is used.

Common issues identified during a risk assessment include:

  • Inconsistent emergency stop coverage across cartoner sections and adjacent equipment
  • Inadequate safety guards or incomplete magazine guarding, particularly where frequent manual replenishment occurs
  • Guards without monitored interlocks, allowing access during motion
  • Manual intervention to correct carton presentation or filling amount
  • Uncontrolled speed changes from a variable speed product infeed
  • Limited visibility of machine state due to insufficient monitoring system feedback

Where sensors such as a photo eye are used for carton detection or product confirmation, safety behaviour is often not aligned with fault conditions or abnormal operating states.

Why Old Cartoner Machines Often Fail AS 4024 Compliance

Many cartoner machines currently in service were designed prior to modern interpretations of Safety of Machinery Standards, or were supplied under overseas compliance frameworks that do not align with Australian safety standards.

Typical compliance shortfalls include:

  • Safety functions embedded within standard PLC programming rather than a dedicated safety architecture
  • Emergency stop circuits that do not reliably propagate through the full control system
  • Guarding systems relying on fixed barriers without monitored interlocks
  • Electrical modifications made incrementally without reassessment against Australian AS 4024

As cartoners are increasingly integrated into broader automation and robotics environments, including robotic pick and place systems, these limitations become more apparent during audits and incident reviews.

Typical Safety Upgrades For Cartoner Machines

Packaging machine safety upgrades are implemented as engineering controls integrated into existing machine design, electrical control systems, and automation architecture.

EMERGENCY STOP UPGRADES

Emergency stop upgrades focus on ensuring predictable, safety-rated stopping behaviour across the cartoner and any connected equipment. Activation of an emergency stop must always result in a defined and verifiable stop response, independent of machine mode, sequence state, or standard control logic.

Typical upgrade activities include:

  • Rationalising emergency stop zoning across cartoner sections and interfacing equipment
  • Ensuring stop functions meet AS 4024 stop category and performance expectations
  • Implementing emergency stop logic within a safety-rated control architecture

These upgrades are commonly required following changes to line layout, automation scope, or integration with upstream or downstream machinery.

INTERLOCKING AND GUARD LOCKING

Interlocking upgrades address access to carton magazines, erecting mechanisms, and closing stations. Typical retrofit activities include:

  • Adding monitored interlocks to existing guards
  • Introducing guard locking where residual motion or stored energy is present
  • Ensuring guard state feedback is evaluated by the safety logic

These upgrades are particularly relevant where operators routinely access the cartoner for adjustment, cleaning, or fault clearance.

SAFETY PLC INTEGRATION

Where legacy cartoners rely on hardwired or non-safety logic, integration of a safety PLC is often required to meet AS4024 requirements. Typical work includes:

  • Separating safety functions from standard PLC logic
  • Reviewing existing PLC programming to remove safety dependencies
  • Validating safety inputs and outputs
  • Integrating safety logic with the existing control system and line supervision

Safety PLC integration is common where cartoners form part of a larger automated packaging line incorporating robotics or shared motion systems.

Ready To Review Your AS 4024 Safety Compliance?

Our Approach To Cartoner Machine Safety Retrofits

Cartoner machine safety upgrades are developed following a structured risk assessment aligned with the Australian AS 4024 Safety of Machinery Standards. The assessment considers machine operation, maintenance access, fault recovery, and interaction with surrounding equipment.

Retrofit designs are developed to integrate with the existing control architecture, minimise production disruption, and support future automation changes. Factory acceptance testing is typically conducted to verify safety behaviour prior to site installation. Where machines are relocated or exported, safety documentation, export crating, and coordination with logistics providers and marine insurance requirements are addressed as part of the upgrade scope.

When To Upgrade Or Replace Cartoner Machinery

Safety upgrades are generally appropriate where the mechanical condition of the cartoner remains sound and compliance gaps can be addressed through guarding and control changes. Replacement may be considered where:

  • Safety retrofits significantly restrict throughput
  • Mechanical wear compromises safe stopping or guarding effectiveness
  • Compliance gaps cannot be closed without major redesign

In many Australian facilities, targeted cartoner machine safety upgrades allow continued operation while maintaining alignment with AS4024.

Related Safety Upgrade Solutions

Packaging machine safety upgrades are commonly delivered as part of broader compliance and maintenance programs, including:

  • Machine safeguarding audits and safety inspections
  • Emergency stop and interlock standardisation
  • Safety PLC upgrades across production lines
  • Hazardous area safety improvements
  • Preventative maintenance and verification programs

These activities support ongoing compliance with Australian machinery safety standards while maintaining operational reliability.

Machine Types We Upgrade Under AS 4024

We also provide machine-specific upgrade solutions across the following machines:

Next Step

If you require assistance assessing packaging equipment against AS 4024 requirements or defining the scope of a safety upgrade, contact us to discuss risk assessment, retrofit options, and validation requirements.

Subscribe Our Newsletters

Get all the latest information on Events, Sales and Offers.