DN Solutions PUMA 700 XLM II

The DN Solutions PUMA 700 XLM II is the longest-bed, driven-tool member of the PUMA 700 II family: a horizontal turning center with a 24 in chuck, a maximum turning diameter of 900 mm (35 in) and a maximum turning length of 5,050 mm (199 in). Z travel is 5,100 mm (201 in), and the 12-station turret carries live tools that run to 3,000 rpm. DN's own series summary gives 5 m as the longest turning length in the PUMA 600/700/800 range, and this is one of the models that reaches it.

Bed length is what separates it from its nearest relatives. The PUMA 700 M II has the same chuck, spindle and live tool speed but stops at 1,600 mm (63 in) of turning length, and the PUMA 700 L II turns 3,200 mm (126 in). The extra bed is paid for in mass and floor space: 26,000 kg (57,320 lb) here against 16,500 kg (36,376 lb) for the PUMA 700 M II, and a machine that is 9,904 mm (390 in) long, 2,955 mm (116 in) wide and 2,855 mm (112 in) high.

The spindle is rated 55 kW (74 hp) and 8,076 N·m (5,957 ft-lb) with a top speed of 1,500 rpm. That torque is the same figure DN lists for the PUMA 800 II, whose 32 in chuck comes with a 750 rpm limit, so the PUMA 700 XLM II keeps twice the speed range for the smaller-diameter sections of a long shaft. X travel is 470 mm (19 in). Rapids are 12 m/min (472 ipm) on X and 10 m/min (394 ipm) on Z; the Z figure is lower than the 16 m/min (630 ipm) of the short-bed PUMA 700 M II, and on a 5,100 mm axis repositioning time becomes part of the cycle.

Milling on a part this long is the reason to choose the XLM over a plain turning version. Keyways, cross holes and flange bolt patterns can be cut without lifting a shaft of several tonnes to another machine. The table lists X and Z only. DN mentions a 200 mm Y-axis stroke for the series, but no Y travel appears in this model's column, so confirm it before planning off-centre milling. The table also gives no spindle bore, tailstock or steady rest details, all of which matter at this length.