News & Article

Wire rope elongation explained: constructional vs elastic stretch, typical stretch values by construction, the elastic stretch formula with a worked example, pre-stretching, re-tensioning and warning signs. By Andri, Technical Writer & Crane Rope Specialist, Aulone.

Lang’s lay vs regular lay wire rope explained: EN 12385-2 lay codes (sZ, zZ, zS, sS), the rotation rule, fatigue and abrasion trade-offs, lay length, and how to order the right lay. By Andri, Technical Writer & Crane Rope Specialist, Aulone.

How to choose wire rope for RTG and RMG gantry cranes: the right construction and core, 1960 galvanized grade, 5:1 design factor sizing with a worked example, multi-layer drum rules, ISO 4309 discard criteria and salt-air maintenance. By Andri, Technical Writer & Crane Rope Specialist, Aulone.

How to inspect a wire rope sling per ASME B30.9: the three inspection levels, tag requirements, the full removal-from-service criteria table, broken wire limits, hitch capacity multipliers and a field checklist. By Andri, Technical Writer & Crane Rope Specialist, Aulone.

A wire rope is only as strong as its end termination. A spelter or swaged socket keeps 100% of the rope’s minimum breaking force; a wedge socket keeps about 80% but can be made and adjusted in the field in minutes. A crane rope specialist’s complete guide to wire rope sockets: types, termination efficiency, zinc vs resin pouring, wedge socket installation rules and inspection. By Andri, Aulone.

Most wire rope is damaged before its first lift, not during it: wet ground, stacked drums, dropped reels and careless unreeling create kinks, birdcages and corrosion that no inspection can undo. A crane rope specialist’s complete guide to storing, handling, unreeling and maintaining wire rope from delivery to installation. By Andri, Aulone.

Six documented wire rope failures — a dropped nacelle, an offshore crane fast line, a drilling winch rope, two steel-mill ladle cranes and a workshop hoist — analyzed by a crane rope specialist: the root causes, the warning signs everyone missed, and the exact practices that prevent each failure. By Andri, Aulone.

Wire rope sheave and drum guide: groove radius tolerances, minimum D/d ratios by rope construction, the 1.5-degree fleet angle rule with a worked example, drum groove pitch and multi-layer spooling, and the wear criteria that tell you when to re-groove or replace. By Andri, Aulone.

Oilfield wire rope explained: drilling line constructions (6x19S, 6x26WS, 6x31WS with IWRC) in EIPS/EEIPS grade, sand lines for bailing and swabbing, rotation-resistant rope for well servicing, the API RP 9B ton-mile slip-and-cut program with a worked cutoff example, sizing and discard criteria. By Andri, Aulone.

Truck crane wire rope explained: main hoist lines (35xK7 / 35WXK7), boom extension and retraction ropes for telescopic booms, the 5:1 hoist design factor and 4:1 minimum for extension circuits, sizing with a worked example, installation on multi-layer drums, transport-vibration wear and ISO 4309 discard criteria. By Andri, Aulone.

Pile driving wire rope explained: hammer lines, main hoist ropes and vibro hammer suspensions, 35WXK7 vs compacted 6xK36WS+IWRC, rotation resistance, the 5:1 design factor against hammer snatch loads, sizing, installation, lubrication and ISO 4309 discard criteria. By Andri, Aulone.

Trawl wire rope explained: warp and bridle selection, 6×19 vs 6×36 constructions, IWRC vs FC cores, lay direction and matched warp pairs, the 6:1 safety factor, warp length and drum capacity, spooling, lubrication and when to retire a warp. By Andri, Aulone.