Recent Blogs
Lifting Tongs: Cross-Jaw Linkage Animation and Geometry Calculator
Explore a symmetric cross-jaw tong linkage with swivelling shoes. Compare jaw-end pivot span, visible contact gap and lifting-eye height as the linkage moves.
Rope Grip Hook Mechanism Explained: How It Works, Parts, Wedge Friction Formula and Diagram
Rope grip hooks lock onto a rope under load and release when slack. Learn the physics, sizing formulas, and rigging examples used in arborist and...
Wire Rope Clip and Thimble: Parts and Rating Limits | FIRGELLI
Explore a wire-rope eye schematic and understand the separate roles of clips and thimble. Illustrative dimensions do not determine assembly strength or working load.
Swivel Shackle Slip Hook: Force-vector Illustration
Explore hook and swivel concepts alongside an illustrative cosine product. The calculation does not determine WLL, allowable load or permitted load direction.
Right and Left Hand Turnbuckle Mechanism: How It Works, Diagram, Parts and Uses Explained
Calculate turnbuckle take-up from equal thread pitch and body rotation. Opposite-hand threads move both ends, doubling the travel per revolution.
Automatic Disengaging Grip Mechanism Explained: How It Works, Parts, Formula, and Uses
Explore a schematic automatic gripping and release sequence with normalized load comparisons. The example values do not specify a lifting-device rating.
Slip Hook Mechanism: How the Releasing Hook Works, Jaw Geometry, Parts and Uses Explained
Slip Hook explained — how a Disengaging Hook releases pile drivers, lifeboats, and tow lines under load. Construction examples, formulas, and selection rules.
Yoke Strap Mechanism Explained: How It Works, Diagram, Parts, Formula, and Marine Rigging Uses
Explore ideal load sharing in a symmetric two-leg yoke. Compare leg tension and lateral components as the included angle changes.