The 3ds Max version has been rigged for animation to allow for a range of motion in the cranes base, arm, and hook.
Crane 3D Model Specifications
Geometry:Polygonal Ngons used
Polygons:97,105
Vertices:58,209
Textures:Yes
Materials:Yes
Rigged:Yes
Animated:No
UV Mapped:Yes
Unwrapped UVs:No