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Technical guides for rigging engineers: sling angle analysis, chain sling inspection, load planning, and equipment selection. Based on ASME B30.9 and EN 818-2.
Sling Angle vs Spreader Beam: When to Choose Each
Decision guide with tension factor table, ASME B30.9 thresholds, and a 3-step selection checklist for riggers.
Chain Sling Inspection Checklist — Grade 80 & Grade 100
Complete inspection checklist per ASME B30.9: pre-use checks, periodic inspection, rejection criteria, and documentation.
How to Select the Right Shackle Size: WLL Chart & 6-Step Guide
Complete shackle sizing guide with WLL table from 3/16" to 2", ASME B30.26 safety factors, bow vs dee selection, and pre-lift inspection checklist.
Wire Rope WLL vs Breaking Strength: The 5:1 Safety Factor Explained
Understand the difference between wire rope WLL and breaking strength, why ASME B30.2 requires a 5:1 design factor, and 6×19 IWRC spec table.
Shackle Inspection Guide: ASME B30.26 Pre-Use & Periodic Checks
Step-by-step shackle inspection checklist per ASME B30.26: pre-use visual checks, periodic inspection criteria, and concrete rejection standards.