Generally all chain hoists specification has the specification like the capacity, effort required, weight etc. I could not understand the what does the term ' number of falls' mean. Kindly throw some light on it.
If it is the same as for a mountaineering rope; they fix a standard weight on the end of the chain, and then drop it a fixed height onto a static anchor (ie, the chain takes the full force of the falling weight). The chain must survive a specific number of falls (with climbing ropes it's five) without breaking.
Chain fall refers to a chain hoists mechanical advantage in lifting loads. The higher this figure the easier and less effortfull it is to use it to lift a load, especially for manual hoists
A chain fall is another name for chain hoist. A double chain fall is a double hoist (twice the mechanical advantage). If you pass an imaginary plane through the chains and count the number of cut chains lifting up, the load is divided by the number of 'lifts' under tension.
