🕒 3 min read • 🟢 Beginner • Educational Resource
The Standard
OSHA requires that the point of operation and other hazardous areas of machinery be safeguarded to protect employees from injury. ANSI B11 standards apply this same risk reduction philosophy by requiring hazards to be evaluated and appropriate safeguarding measures selected based on the machine, task, and level of risk.
On riveters, the primary hazard is typically the pinch or crush point created between the ram, tooling, and workpiece during the riveting cycle.
Depending on the machine design, safeguarding may include physical guards, presence-sensing devices, two-hand controls, or other risk reduction measures appropriate for the application.
Note: There is no single ANSI B11 standard dedicated exclusively to riveters. Applicable requirements depend on the type of riveting machine, its operating method, and the hazards identified during a machine-specific risk assessment.
The Practical Translation
A riveter doesn't have to be a large machine to create a serious hazard.
Anytime an operator's hands can enter the point of operation during the riveting cycle, the machine should be evaluated to determine whether additional safeguarding is needed.
Traditional guarding may be practical for some applications, while others may benefit from engineered safeguarding solutions such as finger-presence sensing devices, light curtains, or properly designed two-hand controls.
The goal isn't simply to stop access—it's to reduce the likelihood of hand exposure while allowing the machine to remain productive.
Ask yourself:
Can an operator's fingers enter the point of operation during a cycle?
Is the safeguarding appropriate for the production task being performed?
Could the machine cycle unexpectedly while hands are near the tooling?
Has the machine been modified since it was originally installed?
Have operators developed workarounds because safeguarding interferes with production?
The Takeaway
Riveting machines should be evaluated based on their specific hazards—not their size or age.
Effective safeguarding reduces the likelihood of operator exposure while supporting efficient production.
Compliance identifies the need to safeguard hazardous motion. Practical risk reduction asks whether an operator's hands can realistically reach the danger zone during normal operation.
Want to learn more?
Explore our guide on Machine Safeguarding for Riveters to learn about common hazards, safeguarding options, and practical retrofit considerations for pneumatic, hydraulic, orbital, and impact riveting machines.
