WORKING LOAD LIMIT – 4 TO 1 DESIGN FACTOR Grade 100 Chain Sling Components For choker applications, the Working Load Limit must be reduced by 20%. The Crosby A-1338 cradle grab hook and S1311N chain shortner link do not require any reduction of the Working Load Limit. The design factor of 4 to 1 on [...]
Many people are confused by whether a forged or cast product, part, or material is better to utilize. The truth is, it really varies on application. What is Casting? Casting is the process where metal is heated until molten. While in the molten or liquid state it is poured into a mold or vessel to [...]
Safe Working Load Limits- Terminology SWL, NWL, MBS --- all of the acronyms can get very confusing. Don't fret - we're here to clear things up when it comes to safe working load limits and the terms associated with it. Safe Working Load (SWL) sometimes stated as the Normal Working Load (NWL) is the [...]
A common question we receive is "Do I need to lubricate my wire rope?" While wire rope lubrication application is not required it can, however, increase the life of the wire rope, therefore making your purchase more cost effective in the long run. Who wouldn't want to extend the life of their rope purchase and [...]
To Order Your Crosby Eliminator® Grade 100 Alloy Chain Sling: Follow these simple steps to order a sling assembly: Determine the maximum load to be lifted by the sling assembly. Choose the type of sling assembly suited for the shape of the load and the size of the sling assembly for the load to be [...]
WARNING Failure to read, understand, and follow these instructions may cause death or serious injury. Read and understand these instructions before using clips. Match the same size clip to the same size wire rope. Prepare wire rope end termination only as instructed. Do not use with plastic coated wire rope. Apply first load to test [...]
With each application, your choices of wire ropes can be many. How do you know which one works best for you? Ropes include a combination of characteristics that give them specific performance abilities. Before you choose, it pays to look closely at each rope’s special characteristics. NO SINGLE WIRE ROPE CAN DO IT ALL All [...]
Sling Angles: Two Legged Sling - Wire Rope, Chain, and Synthetics Vertical share of load on slings are equal if center of gravity is in the middle. Horizontal Sling Angle Horizontal Sling Angle (A) Degree Load Angle Factor = L/H 90 1.000 60 1.155 50 1.305 45 [...]
Wire Rope Slings (ASME B30.9) A wire rope sling shall be removed from service if conditions such as the following are present: Missing or illegible sling identification. Broken Wires: *For strand-laid and single-part slings, 10 randomly distributed broken wires in one rope lay, or 5 broken wires in one strand in one rope lay. *For [...]
Employers must use qualified riggers during hoisting activities for assembly and disassembly work (1926.1404(r)(1)). Additionally, qualified riggers are required whenever workers are within the fall zone and hooking, unhooking, or guiding a load, or doing the initial connection of a load to a component or structure (1926.1425(c)).
