How is the Working Load Limit Calculated on the Erickson EM58523-09162-4?

Question:

Wondering about the WLL on these straps. Webbing is good for 3,300 pounds...why the factor of 3 deration for the WLL ? Do you have straps of this type with a higher WLL ? Thank you !!

asked by: Frank M

Expert Reply:

I spoke to Erickson and they were very informative. That being said, the Breaking Strength and Working Load Limit will be the same for every manufacturer with the basic rule to ensure safety of 3:1. So with the # EM58523-09162-4 having a breaking strength of 3,300 pounds, the safe working load is therein 1,100 pounds.

I did also ask if they had anything similar to these in a higher capacity, but they do not have anything at the moment. The e-track connections do limit the maximum weight capacities.

We do have an option without the roller pieces or e-track connections, but may work though. The Erickson # EM78527-MS2 will come as 2 ratchet straps that are rated up to 3,300 pounds (WLL) and 10,000 pounds (breaking). You would also need to purchase the Chocks # EM09162-2 as these are not included as well.

expert reply by: Lazer S