Low carbon steel
High carbon steel
High tensile steel
Medium carbon steel
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
