Tech-Flash
To Swivel or Not to Swivel?
Posted: February 5, 2024You may already use so called ‘swivel’ hooks. But did you know that ‘standard’ swivel hooks do NOT swivel when loaded? These hooks do NOT have a thrust bearing but the load nut sits directly on the hook support.
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Are Your Hoists Dynamically Proof-tested?
Posted: December 15, 2023What is a ‘dynamic’ proof test? This is when the hoist is not only loaded once to a proof load (usually between 100% and 120% of Rated Hoist Capacity) but chain travel during this test should result in at least a minimum of one full rotation of the chain sprocket.
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Too Much Lubrication Prevents Rope Inspection
Posted: November 24, 2023During manufacturing, wire rope is lubricated to reduce internal and external frictions. Tests performed by the University of Stuttgart, Germany, have shown that non-lubricated ropes will only last 1/3 of well lubricated ones.
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Overlooked Rope Inspection Details?
Posted: October 30, 2023When inspecting wire rope, it is crucial that you know the difference between Crown and Valley breaks. Crown breaks originate at the OUTSIDE of the rope and are mainly caused by the interaction between the rope and sheave or drum.
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Why Rigging Hardware Must “Stretch”
Posted: March 31, 2023One of the most important features of quality rigging hardware is the ability to stretch when overloaded. This ductility is a design feature and warning that your rigging is about to fail.
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Safety Spotlight
Posted: March 6, 2023Safe Rigging Starts Here.
Yes, it starts with that must know and can easily read the rated lifting capacity of your slings. Sling tagging has long been a problem within the industry. Either they were made from steel plate with hard to read stamped in numbers, or they were skimpy and small.