The Doosan DNM 400 is a compact 3-axis CNC vertical machining center with a reputation for dependable, straightforward operation that has made it a staple in job shops and production cells. This 2010 unit, built by Doosan Infracore, pairs a 36.2" x 17.1" table with an 8,000 RPM CAT40 spindle, giving shops a 40-taper platform sized for brackets, housings, plates, fixtures and multi-vise production work. Tooling is handled by a 30-tool side-mount, arm-type automatic tool changer, so a full family of drills, taps, end mills and face mills can stay loaded between jobs. Control is the Doosan-Fanuc i Series CNC, a Fanuc-based platform familiar to most programmers and operators, with rigid tapping for fast, accurate threading without floating tap holders. Flood coolant supports general steel, aluminum and cast iron machining. As a straight 3-axis VMC, the DNM 400 is designed for simple setups, quick changeovers and repeatable vise and fixture work, making it a practical first vertical or an added spindle for a growing shop.
The DNM 400 followed the compact vertical machining centers Doosan built during the Daewoo era, including the ACE-V400 and ACE-V500, and carried that layout into the Doosan Infracore generation. Where those earlier machines ran older Fanuc control packages, the DNM 400 is built around the Doosan-Fanuc i Series control and operator panel, giving programmers a more current interface, rigid tapping and a straightforward path to modern CAM post-processors. Its 30-tool side-mount, arm-type changer keeps a full working set of tools resident in the machine, so setups between jobs come down to loading the next fixture rather than swapping holders. For a buyer moving up from an older Daewoo vertical or adding capacity beside one, the DNM 400 brings a more modern control into the same simple 40-taper workflow their operators already know, which translates into faster setups and more spindle time on real production work.