$30 Hammerhead Tower Crane 4 - Construction Crane 3D model by MatViz. Available on CGTrader with 790715 polys and 759934 vertices. Check it out on CGHub.
BLEND (Blender, filesize: 51.2 MB), OBJ (OBJ, filesize: 51.2 MB), FBX (Autodesk FBX, filesize: 51.2 MB)