Check out CAT 6060 Hydraulic Mining Shovels 3D model on CGTrader for $119. High-quality mesh by Polygate2: 1286234 polys, 1301945 vertices.
OBJ (OBJ, filesize: 40.1 MB), FBX (Autodesk FBX, filesize: 65.5 MB), MAX (Autodesk 3ds Max, filesize: 271 MB), MA (Autodesk Maya, filesize: 78.8 MB), MEL (Maya Mel Script, filesize: 78.8 MB), C4D (Cinema 4D, filesize: 35.6 MB), BLEND (Blender, filesize: 59.5 MB), 3DS (3D Studio, filesize: 15.4 MB)