Machine Guarding and Safety Devices

What is Machine Guarding and Safety Devices?

Machine guarding and safety devices are protective measures designed to prevent contact with dangerous moving parts, contain flying debris, and eliminate hazardous mechanical motion. These essential safeguards create barriers between workers and potential hazards, helping to prevent serious injuries such as amputations, crushing injuries, and entanglements.

Key Components

1. Guard Types and Applications

• Fixed guards that provide permanent protection and require tools for removal.
• Interlocked guards that disable machine function when opened or removed.
• Adjustable guards that accommodate various material sizes while maintaining protection.
• Self-adjusting guards that move according to the work being performed.

2. Safety Devices and Controls

• Presence-sensing devices that stop machine operation when a person enters the danger zone.
• Two-hand controls that require simultaneous use of both hands to operate dangerous machinery.
• Safety trip controls such as pressure-sensitive body bars and tripwires.
• Emergency stop devices that quickly shut down equipment in dangerous situations.

3. Administrative Controls

• Training on machine-specific hazards and safe operating procedures.
• Clear lockout/tagout protocols for maintenance and repair activities.
• Regular inspection and maintenance of guards and safety devices.
• Proper workstation design to minimize exposure to machine hazards.

Building Your Safety Mindset

1. Never Bypass Protection

   • Resist the temptation to remove or disable guards for convenience or speed.
   • Report missing or damaged guards immediately rather than working without them.
   • Understand that momentary shortcuts can lead to permanent injuries.

2. Stay Alert to Machine Hazards

   • Identify pinch points, nip points, and other dangerous areas before operating.
   • Maintain focus when working with or around machinery, avoiding distractions.
   • Consider how clothing, hair, and jewelry could become entangled in equipment.

3. Advocate for Improvements

   • Suggest better guarding solutions when existing ones interfere with efficiency.
   • Share near-miss experiences to highlight potential guard improvements.
   • Participate in machine risk assessments and guard evaluation processes.

Discussion Points

1. Have you ever been tempted to bypass a safety guard to complete a task more quickly?
2. What machine guarding improvements would make your job both safer and more efficient?
3. Can you share an example where a guard or safety device prevented an injury?

Action Steps

• Inspect machines in your work area for proper guarding.
• Test emergency stop functions on equipment you operate.
• Report any damaged or missing guards to your supervisor.
• Review the operating manual for one machine you commonly use.