The following calculator has been developed
to assist you in determining the number of parts of line to be used for a given
load, the line pull or the lift capacity of a block.
Calculating Recommended
Number of Parts of Line
Use this calculator to determine the recommended Number of Parts
of Line needed when the weight of the load, the single line pull and
the type of sheave bearing being used are known.
Calculating Single Line Pull
The Single Line Pull is the amount of pull required on the
lead line to raise or move the load.
Calculating Lift Capacity
Use this calculator to determine the recommended Lift Capacity
of a block in the system, when the single line pull, the parts of line and the
type of sheave bearing being used are known.