Understanding ANSI B11 Machine Guarding Standards
Machine safety involves more than adding a guard around moving parts. Teams need to identify hazards, assess risk, and choose the right way to reduce that risk.
The ANSI B11 standards provide guidance for this process. They cover many parts of machine safety, from risk assessment to the use of guards and other safety measures.
Understanding these standards can help manufacturers make better safety decisions.
What Are ANSI B11 Standards?
The ANSI B11 series focuses on machine safety.
These standards address the design, construction, setup, operation, and maintenance of many types of industrial machines. They also provide guidance for risk assessment and risk reduction.
Different standards within the B11 series cover different areas. Some apply to certain types of machines. Others provide broader guidance that can apply across many applications.
Two important standards are ANSI B11.0 and ANSI B11.19.
What Does ANSI B11.0 Cover?
ANSI B11.0 provides a foundation for machine safety.
The standard focuses on identifying hazards and assessing risk. It also guides teams through ways to reduce that risk.
This process starts before choosing a guard.
Teams should look at how employees use the machine. They should also review setup, cleaning, service, and other tasks. Each task may expose workers to different hazards.
A risk assessment helps teams decide where action is needed.
Where Does ANSI B11.19 Fit?
Once a team identifies a risk, it needs to determine how to reduce it.
ANSI B11.19 focuses on risk reduction measures. This includes guards, control functions, devices, and other methods used to reduce machine risks.
The standard addresses the design, construction, installation, operation, and maintenance of these measures.
This makes ANSI B11.19 an important resource when planning a machine guarding system.
Use Guards to Create Physical Separation
A guard can keep workers from reaching a machine hazard.
Our RapidGuard® II machine guarding creates a physical barrier around robots, conveyors, automated equipment, and other machines. Its modular panels can form a perimeter around the hazard while keeping the equipment visible.
This type of barrier can play a role in a larger risk reduction plan.
The right layout will depend on the machine, the hazard, and how workers interact with the area.
Plan Safe Access Into the Guarded Area
Machines still need service, cleaning, and maintenance. That means some applications need access points with the guarding system.
Doors can provide that access. However, teams should consider how and when workers will use them.
Some applications may also call for safety interlocks or gate switches. These devices can work with the machine control system to help manage access to a hazardous area.
The risk assessment should guide these choices.
Consider Guard Location and Safety Distance
Where you place a guard matters.
A worker should not be able to reach a hazard through, over, under, or around the barrier. Teams need to consider guard height, opening size, and the distance between the guard and the hazard.
This is one reason machine guarding should not follow a one-size-fits-all approach.
A well-planned system considers both the hazard and the way people work around the machine.
Do Not Treat ANSI B11 as a One-Time Checklist
Machines and work areas change.
A new process may change how an operator uses a machine. New equipment may create another hazard. Moving a workstation can also affect access to the guarded area.
Teams should review machine safety when these changes take place.
The goal is not to install a guard and forget about it. The goal is to keep risk reduction measures effective as the operation changes.
Put Machine Safety Standards Into Practice
ANSI B11 standards give manufacturers a framework for making informed machine safety decisions. They help teams look at hazards, assess risk, and plan ways to reduce worker exposure.
Physical machine guarding may be one part of that plan. RapidGuard® II gives facilities a modular option for creating barriers around many types of industrial equipment.
The best solution starts with the machine and its risks.
Need help planning physical guarding for your equipment? Contact our team to discuss your application or request a quote today,
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