Design Documentation · Risk

Machine Risk Assessment

⚙ Design Documentation

Risk assessment is one of the earliest and most important design activities in machine building. It identifies what can go wrong, who can be harmed, how severe the consequence could be, and what design or safeguarding measures are needed to reduce risk. Done properly, it shapes the machine architecture rather than documenting it after the fact.

Where this is used in real machines
  • New machine concepts before detailed engineering is frozen.
  • Safety reviews during CE-oriented development projects.
  • Changes to existing machinery that alter hazards or access patterns.
  • Projects that need clear justification for guarding and safety control choices.
Technical context

A useful risk assessment considers normal operation, setup, maintenance, cleaning, and foreseeable misuse. It looks at mechanical, electrical, thermal, pneumatic, and control-related hazards across the machine life cycle. The result should influence safeguarding, user information, reset logic, access design, and maintenance procedure, not just create a document for the file.

Common mistakes engineers make
Engineer Errors — What Goes Wrong
  • Running the assessment after the design is effectively complete.
  • Assessing only production mode and forgetting setup, maintenance, and cleaning tasks.
  • Using generic hazards without tying them to the actual machine workflow.
  • Failing to reflect risk decisions in guarding, safety I/O, and documentation outputs.
  • Treating the report as fixed even when the machine concept changes.
How engineers currently solve this
1
Identify tasks and hazards
Look at all machine modes and user interactions.
2
Estimate risk
Consider severity, exposure, and possibility of avoidance.
3
Select reduction measures
Prioritise inherently safe design, safeguarding, and information.
4
Implement and verify
Make sure chosen measures actually appear in the design.
5
Maintain through revisions
Update the assessment as the machine evolves.
How ClusterVise improves this
ClusterVise — What Changes

ClusterVise helps teams keep the outputs of risk thinking connected to machine design artefacts. When guarding, safety hardware, or machine architecture changes, the related documentation and selection logic can stay easier to trace, which reduces the common gap between assessed risk and implemented design.

Real example — Semi-Automatic Loading Station Review
Semi-Automatic Loading Station Review ClusterVise Context
ItemSelectionBasis
HazardPinch point at clamp mechanismOperator loading access
ExposureFrequent during setup and each cycleHigh interaction rate
MeasureInterlocked guard + reset logicAccess controlled
Documentation impactSafety I/O and manual updatesDesign outputs affected
Design resultZone-based safeguarding approachIntegrated with machine use case