Are robotic arms safe to work around?
Robotic arms can be operated within a properly designed and validated safety arrangement, but their presence creates hazards that must be assessed. Relevant hazards include impact, trapping, sharp tooling, unstable loads, and the process being performed. The arm's safety features are only part of the complete application.
What this means in practice
The assessment must include routine operation and activities such as setup, cleaning, troubleshooting, and maintenance. The required controls depend on the people, equipment, tools, and foreseeable tasks involved. A collaborative label or low operating speed is not sufficient evidence that the installation is suitable.
Assess tasks throughout the system lifecycle
An assessment needs to include the work people actually perform, including setup, troubleshooting, and maintenance. Hazards may differ between automatic operation and an intervention. The tool, stored energy, adjacent equipment, and carried objects also need consideration.
Protective measures must be selected and validated for the application, with clear responsibilities for operation and maintenance. Changes to the program or layout can alter risk. Staff need documented procedures for their authorized tasks and a controlled process for reviewing modifications before production resumes.
Key points
Assess the complete cell and each intended task.
Implement and validate the appropriate protective measures.
Train personnel for their authorized roles and recovery procedures.
Practical example and next step
Review the installation whenever its tool, load, program, layout, or operating method changes. Refer to the manufacturer's instructions and applicable workplace requirements. OSHA's robotics resources provide guidance on recognizing hazards and evaluating protective solutions; competent application-specific assessment remains essential.