DMG Mori NVX 5100

The DMG MORI NVX 5100 is the long-travel model of its family: 1,050 mm (41.3 in) of X on 530 mm (20.9 in) of Y and 510 mm (20.1 in) of Z, with a workpiece limit of 1,200 kg (2,645.5 lb) and 1,350 mm (53.1 in) of part length.

Against the shorter machines, only X and the load rating change. The NVX 5080 has 800 mm (31.5 in) of X and the NVX 5060 has 600 mm (23.6 in), each with the same 530 mm of Y and 510 mm of Z. X travel here is close to twice the Y travel, which makes this a machine for bars, rails, plates and rows of vises. The NVX 7000 is the next size up in all three axes, with 1,540 × 760 × 660 mm (60.6 × 29.9 × 26 in).

Long strokes are where the choice of guideway shows. X and Y run on wide slideways, which DMG MORI links to minimizing quadrant projection, and Z runs on roller guides. The column shape is said to reduce thermal displacement. For spindles there is a No. 40 taper speedMASTER for high-speed machining and a No. 50 taper powerMASTER for heavy-duty cutting, the latter with a spindle growth sensor for thermal expansion compensation. DMG MORI also states that making the spindle a complete unit, rear bearing units included, reduced the spindle replacement time.

With 1,200 kg (2,645.5 lb) to place, the opening ceiling and wide door matter, since the part will arrive on a crane. Castings of that size shed a lot of sludge and chips, and the equipment for it is optional: a coolant tank for collecting casting sludge, a through-spindle coolant system and an internal spiral-type chip conveyor. No spindle speed or power figures are stated in the Highlights.