Golden Labels

Grade 70 transport chains and chain tensioner are heavy duty tie down equipment , both chains and binders are made of carbon steel, their working load limits are higher than their straps counterparts , if we compare 5/16” grade 70 chain(typical WLL 4700lbs)to 2” tie downs(typical WLL 3333lbs) ,  3/8” chain(WLL 6600lbs) to 4” tie downs(5400lbs) , you can see  that the chains are much stronger, and the load binders are even stronger than same size chains, 5/16”-3/8” load binder(lever or ratchet type) has WLL of 5400lbs and 3/8”-1/2” binder has WLL 9200lbs. If we examine the design factor of chains and tie down straps, we will see that chains and binders have 4:1 design factor while tie down straps have design factor 3:1, that’s another reason we consider chains and binders are heavy duty tie downs .

According to NACM recommendations, the carbon steel used in making grade 70 chains should meet following criteria: no more than 0.35% Carbon, 0.040% Phosphorous and 0.050% Sulfur . When chain manufacturers make their chains to the specification of NACM, and these chains meet or exceed DOT(or CHP, or some other local requirements ) requirements, these chains can be used on the commercial truck to haul heavy loads, such as backhoe, forklift .

To tie down big rigs such as forklift, bulldozer is what we use grade 70 transport chains and binders for, tie down straps have no chance against these tough guys, the only choice is binder chains and binders , the most popular chain size for these  kind of load are 3/8”, for some light equipment which is still too heavy and hard for straps 5/16” will be ideal chain size. 1/2” and up are mostly for really heavy stuff, for example, military applications, say to tie down battle tanks, you will definitely need 1/2” even 5/8” grade 70 chains to tie those bad boys down.

Binder chains can be used for any purpose except overhead lifting. You can use these chains for tearing down trees, tow heavy objects, we some times use these chains to tow our mobile loading dock. We’ve seen forestry service companies use a lot of these chains and binders in their work as well.