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Sea Link
561 Series Cargo Hoisting Blocks
Specifications for the 561 Series high-performance cargo blocks. Features Timken Tapered Roller Bearings and full ABS Certification, with WLLs up to 22,000 lbs, ideal for maritime cargo handling.
Sea Link Marine Rigging Solutions
The 561 Series Cargo Hoisting Blocks are high-performance marine rigging components specifically engineered for demanding cargo handling and maritime hoisting applications. Built for extreme durability, these blocks integrate premium mechanical components to ensure reliable service under heavy loads.
Engineering & Construction Standards
- Design Safety: All blocks in this series are engineered with a rigorous 4:1 Design Factor to maximize operational safety.
- Precision Bearings: Each unit includes genuine Timken Tapered Roller Bearings for superior rotational efficiency and load distribution.
- Forged Hardware: Every accessory and structural fitting is forged to provide maximum strength and resistance to fatigue.
- Versatile Top Fittings: Standard models are available with multiple head configurations to suit different rigging systems:
Swivel Eye (DS): Standard swivel eye often paired with a safety anchor shackle.
Oblong Swivel Eye (OS): Features an elongated eye, available with an upset safety anchor shackle.
Technical Selection & Capacities
The 561 Series is categorized by sheave diameter, providing solutions for Working Load Limits (WLL) ranging from 11,000 lbs to 22,000 lbs.