Originally Posted by codprawn
Don't you think 7.5 tons is a bit of overkill? You could lift almost 4 of your boats vertically with that!!!
Remember these small electric winches have wire with a SWL of only 800lbs and a breaking load of about 1.5 tons.
Rather than the wire or rope my main concern would be the loading on the jockey wheel. Lowering is fine but pulling back up a slip can place huge loads on the wheel - especially if the car is over the lip on a short slip - then you are pulling down and there is a lot of force on the front.
overkill for this boat but i have them for pulling far heavier things as well, the safety margin is generous and also with wear when dragging i have no issues from a safety point of view, plus they cost not much more than ones that have a swl of much much less
when i looked into the winchs i seem to remember the load is measured for the first layer of wire on the drum and then the capacity drops off as more wire winds onto the drum and speed can seriously reduce as the load gets heavier
worth looking into carefully i think
i am also going to be getting the most sturdy jocky wheel i can buy with a pneumatic tyre, should be ok then i think