I've been looking at eye to eye strops and endless loop strops so am I right in thinking that,
2000kg Eye to Eye, Basket hitched = WLL 4000kg (i.e. one leg each side of object)
2000kg Eye to Eye, Chokered = WLL 1600kg
2000kg Eye to Eye, straight pull = 2000kg WLL
2000kg Endless Loop, Basket Hitched = WLL 4000kg (i.e. 2 legs each side of object)
2000kg Endless Loop, Chokered = WLL 1600kg
2000kg Endless Loop, straight pull = 2000kg WLL
If I have a winch rated at 1000kg on a straight pull I need 2 strops rated at at least 1000kg, if I add a pulley for a 2-1 mechanical advantage or re-direct I'd need at least 1 strop rated at 2000kg to attach the pulley to the object. My pulley/snatch block also needs rated at x2 minimum the WLL of the winch.
In effect if I intend to use a snatch block with a winch rated at 1000kg WLL then my snatch block and ALL (for simplicity) my strops need to be rated at X2 minimum the WLL of the winch.
The actual winches I was looking at were the ACE winches, I can't decide on whether to go for the 800kg version (1250kg WLL Straight Pull) or the 1600kg (2500kg WLL Straight pull)
The 800kg with a pulley will give me 2500kg pull, the 1600kg will give me 5000kg pull, so what would you choose, more power at the expense of more weight or lighter weight at the expense of more pulling power. Assuming you choose the lighter, less powerful 800kg winch would you buy strops/pulley and shackles rated for the more powerful winch on the basis that if you decided later to add the more powerful winch you could still use the same hardware?
I'm thinking of getting,
800kg winch
3000kg/3 ton Strops x 3
6500kg/6.5 ton Shackles x 3
8000kg/8 ton Snatch Block (to gain a larger pulley size, still not X 18 the rope diameter sheave)
That should cover me if at a later date I decided to add the more powerful winch, I'd only need to add x 3 stronger strops, 5000kg/5 ton?