HGH-30-CA-ZOC / ZAC is a high-performance linear guide block from the HIWIN HG series (size 30), designed for heavy-load industrial applications such as CNC machines and automation systems. It features a square-type (H) structure with top mounting (A type) and is compatible with 30 mm linear guide rails. The “C” type indicates heavy load capacity, providing strong support and stability for precision motion systems. The block uses a ball-type rolling mechanism for smooth, accurate linear movement. The ZOC (Z0) version offers light preload for smoother motion, while the ZAC (ZA) version provides medium preload for higher rigidity and precision, making it suitable for demanding industrial environments.