Double Block 500Kg Rated 4:1 Ratio Handy Billy - Marine-Grade Double block Handy Billy - Double Block Safety Hook & Becket SWL 500kg

 The 500kg Rated 4:1 Ratio Double Block Handy Billy is designed for use in Ro-Ro safety lockers and onboard vessel lifting applications where greater mechanical advantage is required for safe, controlled manual lifting. Featuring a double block configuration that provides a 4:1 pulling ratio, the system significantly reduces operator effort when lifting or recovering heavy loads, making it well suited to casualty recovery, equipment handling, and general onboard lifting operations.

Commonly carried as part of a vessel's lifting and recovery equipment, the system supports safe manual handling practices and can assist operators during man-overboard recovery, maintenance tasks, and emergency response scenarios. During vessel inspections and surveys, lifting equipment is increasingly assessed for its Safe Working Load (SWL), certification, condition, and traceability, making compliant, correctly rated equipment an important part of onboard safety preparedness.

Manufactured for demanding marine environments, the 500kg SWL 4:1 Double Block Handy Billy is supplied with marine-grade components and is suitable for use on passenger Ro-Ro vessels, ferries, cargo ships, offshore support vessels, and other commercial craft where dependable manual lifting capability forms part of the vessel's safety and operational equipment.

Key Features & Equipment Benefits: 

• 500kg SWL Rating: Safe lifting capacity for marine recovery and vessel use
  
• 4:1 Double Block System: Easier lifting with reduced effort through mechanical advantage
  
• Double Block Design: Strong, durable construction for marine environments
  
• Safety Hook & Becket Configuration: Secure connection for controlled lifting operations
  
• Ro-Ro Locker Compatibility: Designed for quick access in ship safety lockers
  
• Man Overboard Recovery Use: Supports safe casualty recovery at sea
  
• Inspection Ready Design: Suitable for vessel surveys and compliance checks
  
• Marine-Grade Construction: Built to resist corrosion in harsh sea conditions
  
• Manual Operation System: Works without power for emergency use
  
• Controlled Load Handling: Improves safety and stability during lifting

Technical Information:

• Rated Capacity: 500kg SWL completed unit
  
• Rope Specification: 40m x 16mm marine-grade rope
  
• Lift Height: 9m working lift height
  
• Mechanical Advantage: 4:1 double block system
  
• Pulley Size: 4" double sheave (two-wheel) blocks
  
• Construction (pulley block): Hot-dip galvanised steel
  
• Rope Compatibility: Suitable for 14-16mm diameter rope
  
• Block Type: Double block (improved load distribution vs single block)