Lift vertical load

Lower horizontal load

Lead inclined load

Suspend radial load

Frame derrick crane

Gin pole derrick crane

Overhead travelling crane

Guyed derrick crane

Increase friction

Reduce friction

Increase the loading capacity

Increase the speed of moving elements

Radially

Vertically

Horizontally

Inclined angle

Wire ropes

Yarn ropes

Cotton ropes

Manila ropes