hi all, What do u mean by number of falls in manual chain hoists. The specification exist in all chain hoists?

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.

2 Responses to “hi all, What do u mean by number of falls in manual chain hoists. The specification exist in all chain hoists?”

  1. Andrew G  on June 28th, 2013

    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.

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  2. Kes  on June 28th, 2013

    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.

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