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Construction / Snatch / Misc Blocks

Construction Block With Shackle 5 Sheaves

Details extreme heavy-lift 5-sheave configurations supporting WLLs from 55 up to 243 UStons. This datasheet focuses on structural integrity for large-scale industrial projects.

High-Capacity Multi-Line Rigging: Construction Block with Shackle (5 Sheaves)

The Construction Block with Shackle (5 Sheaves) is a heavy-duty rigging component designed for high-capacity lifting and construction applications requiring maximum mechanical advantage. These blocks feature a quintuple-sheave configuration and come standard with a high-strength shackle attachment. Built for long-term operational durability, each unit is standard-fitted with bronze bearings to ensure smooth and reliable rotation under extreme loads.

Engineered Safety and Structural Reliability
  • Structural Safety Factor: Every block is manufactured to meet a Minimum Ultimate Strength of four times the Working Load Limit (4 X WLL).
  • Massive Capacity Range: Standard 5-sheave models support Working Load Limits (WLL) starting at 55 UStons and scaling up to 243 UStons.
  • Quality Assurance: While standard models are featured, Ropeblock welcomes inquiries for custom-engineered versions to meet specific project demands.
  • Technical Accuracy: All dimensions provided in technical tables are indicative; a definitive technical drawing is submitted for approval prior to production to ensure precise fitment.
Advanced Configuration and Design Integration
  • Attachment Versatility: Beyond the standard shackle, optional configurations include versions with a hanger, pin, swivel eye, or swivel jaw.
  • Broad Wire Compatibility: Optimized for a wide range of wire rope diameters, from 1/2″ up to 1-1/2″.
  • Service Life Optimization: Users are advised to consult wire rope manufacturers’ D/d ratio guidelines to ensure proper sheave-to-rope diameter compatibility and longevity.

5-Sheave Construction Block Technical Specifications

The following table details standard 5-sheave Construction Block models. Please contact our technical department for full dimensional approval (∅D1, ∅D2, B, ∅D, ∅P, TD, ∅Z, T, TA, TB, TL, W) prior to ordering

Safety Warning: Always strictly adhere to the rated Working Load Limit (WLL). The Minimum Ultimate Strength is rated at 4 X WLL. Before installation or operation, consult the comprehensive warning and safety guidelines on page 136 and pages 138-149.