industrial belt conveyor 3d model

Technical 3D illustration of an industrial belt conveyor structure, isometric three-quarter view, clean product-render style with soft studio lighting, light grey background, no text or labels. Structure: a 7-meter-long steel frame conveyor, 4 rectangular support portals (columns) evenly spaced along the length, each portal made of two vertical steel columns connected by a horizontal crossbeam near the bottom, with small triangular gusset brackets where the columns meet the two side rails on top. The two side rails run the full 7 meters and support 11 evenly spaced free rollers under a flat conveyor belt. At the left end: a large drive pulley (drum) with a chain sprocket, connected by a roller chain to a small electric motor with a gearbox/reductor, mounted on its own base plate on the ground beside the frame (NOT underneath the drum). At the right end: a slightly smaller tail pulley (drum), with two adjustment frames/blocks on each side holding a horizontal tensioning screw (ACME lea