Platoon welding machine 3D model is available on CGTrader for $350. Original author: forestlsls. Specs: 2457933 polys, 2809663 verts.
MAX (Autodesk 3ds Max, filesize: 88 MB), OBJ (OBJ, filesize: 35.2 MB), FBX (Autodesk FBX, filesize: 28.3 MB), STP (STEP, filesize: 34.7 MB), IGE (IGES, filesize: 3.38 MB), 3DS (3D Studio, filesize: 12.7 MB), SLDPRT (SolidWorks, filesize: 281 MB), BIP (KeyShot, filesize: 86.2 MB)