Check out Packing machine assembly 3D model on CGTrader for $185. High-quality Polygon mesh mesh by forestlsls: 6364693 polys, 7938776 vertices.
OBJ (OBJ, filesize: 854 MB), BIP (KeyShot, filesize: 662 MB), IGE (IGES, filesize: 924 MB), STP (STEP, filesize: 423 MB), 3DS (3D Studio, filesize: 210 MB), FBX (Autodesk FBX, filesize: 247 MB), MAX (Autodesk 3ds Max, filesize: 1.9 GB), SLDPRT (SolidWorks, filesize: 273 MB)