Discard calculator
Rate broken wires, diameter, corrosion and deformation against CSA Z150, CSA Z248, ISO 4309, ASME B30.30 or API RP 2D.
After a rope failure
What to do in the first hours, what to keep, and how to stop it happening again.
Photo library
70 field photos of rope and sheave damage, sorted by type, with what causes each.
Inspection standards
What each standard says about inspecting crane rope and when to remove it from service.
Case studies from the field
14 real rope problems: what we found, what caused them and what fixed them.
It's the sheaves
Worn grooves, missed sheave inspections, and why go/no-go gauges aren't enough.
Synthetic sheaves
How rotation-resistant rope can pass visual inspection while wearing from the inside.
Diameter tolerance
Why a rope stops spooling on the next layer, and why more tension makes it worse.
Spooling tension
The paint-line check for equal tension on any multi-layer drum.
Wind turbine cranes
Why hoist ropes rat's nest and boom ropes crush, and how to get more life from them.
Offshore cranes
Luffing winch spooling on shimmable drums, and hoist ropes that get shock loaded.
Kelly and crowd ropes
What should end a kelly rope's life, why crowd ropes crush, and why kelly bars get dropped.
Sheave gauges
Stainless steel groove gauges in 0.25 mm steps up to 150 mm, and sets made for your crane.
Container cranes
Why STS hoist ropes rarely show broken wires, and why that is dangerous.
Judging a rope you've inspected? Use the discard
calculator, or read what each inspection standard requires.
Need a rope for your crane?
Find your crane for the diameter, length, OEM part number and a price estimate for every winch. Or send us what you know and we quote it the same day.
Our field work
Rope inspections, sheave checks, rope installations and crew training on the cranes and rigs we supply. Ask us to look at yours.
Free help, no strings attached
Does this rope meet spec?Free spec check. Send the mill cert or the rope description and which crane and winch it’s for, and we tell you if it meets spec.Worried about a rope?Free photo check. Send photos and get a preliminary opinion from someone who has inspected crane ropes for 15 years.Free rope and sheave inspection checklistsFor your crane type and standard: CSA, OSHA and ASME, API or ISO. PDF download.