$129 Fully Automatic Box Unpacking Machine 3D model by Lovano. Available on CGTrader with 987304 polys and 2961912 vertices. Geometry: Polygon mesh. Check it out on CGHub.
STL (Stereolithography, filesize: 47.1 MB), OBJ (OBJ, filesize: 72.4 MB), STP (STEP, filesize: 47.6 MB), X_T (Parasolid, filesize: 61.6 MB), IGE (IGES, filesize: 122 MB), BIP (KeyShot, filesize: 215 MB)