Chains
Discussion in 'Flatbed Trucking Forum' started by EdwinTheGreat218, Aug 23, 2017.
Page 3 of 5
-
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
-
EdwinTheGreat218 and noluck Thank this.
-
Of course I do, look here;
http://www.fehr.com/img/product/description/NACM Welded Chain Specifications.pdf
Page 5 paragraph 5.3.4
PeteyFixAll, MarkH129, SAR and 9 others Thank this. -
The other reason for using the higher grade chain? Direct tie downs only get half rating. Higher WLL on the higher grade gives you more when cut in half. Dependent on the WLL of your binders & tie down points of course.
-
cke and EdwinTheGreat218 Thank this.
-
6,600 lb WLL attachment point, 4,700 lb WLL chain (G70 5/16"), 5,400 lb WLL binder (5/16") = 2,350 lb tiedown.
6,600 lb WLL attachment point, 6,600 lb WLL chain (G70 3/8"), 6,600 lb WLL binder = 3,300 lb tiedown -
-
cke, SAR and Dye Guardian Thank this.
-
Sorry, I'm busy right now so I was going to come back to this but I'm going to elaborate right now.
The WLL of a chain is tested and determined by a single length of chain, not a doubled up chain, which is basically what a direct securement is.
The concept of cutting the WLL in half for direct securement and giving only the full WLL for indirect instead of more is only a legal concept, not a physical, scientific one. It is also why things only have to get secured to half of an item's weight.
Thus, yes, you treat the chain and the tie down point the same when doing the math.Last edited: Aug 27, 2017
-
Trucking Jobs in 30 seconds
Every month 400 people find a job with the help of TruckersReport.
Page 3 of 5