Mori Seiki's NT series of mill-turn centers combines a lathe with a machining center. In designing the series, the company rethought the design and construction of the multitasking machines to harness the turning ability of a lathe and the cutting ability of a machining center.

The NT5400 DCG/1800S employs both DCG (driven at the center of gravity) technology and the box-in-box construction of the NH series horizontal machining centers, along with the turret with a built-in milling motor from the NL series CNC lathes.

The mill-turn center features a subspindle, allowing for high-speed and high-precision continuous machining. The machine's maximum turning length is 70.8". It is in the15" chuck size class and commands a maximum barwork diameter of 4.1".

Like all machines in the NT series, this machine contains a B-axis that uses a direct drive motor, eliminating backlash and making high-speed rotation possible. Indexing specifications for the axis cater to high-precision machining requirements, allowing for input by units of 0.0001 degree.