Horizontal machining center. Box-type parts are commonly used in industries such as machine tools, automobiles, and aircraft manufacturing. Generally choose a small horizontal boring and milling machining center. When there are few processing stations and the span is not large, a vertical machining center can be selected to process from one end. Therefore, the horizontal machining center is most suitable for manufacturing machine tool boxes. A horizontal machining center is a machining center in which the worktable and spindle are arranged in a flat shape. Horizontal machining centers generally have three linear motion coordinate axes plus one table rotation axis. Machine tools refer to machines that make machines, also known as work machines or machine tools, and are customarily referred to as machine tools. Generally divided into metal cutting machine tools, forging machine tools and woodworking machine tools.