Collection Mining Machines 1 (Polygon mesh 3D model) is available on CGTrader for $388. Original author: ArqArt3D. Specs: 10 polys, 10 verts.
OBJ (OBJ, filesize: 28.6 MB), 3DS (3D Studio, filesize: 23.8 MB), LWO (Lightwave, filesize: 23 MB), FBX (Autodesk FBX, filesize: 33 MB), MAX (Autodesk 3ds Max, filesize: 28.6 MB)