Doosan DNM 6700 Plus

The Doosan DNM 6700 Plus is listed as a vertical machining center with 1,300 mm (51.2 in) of X, 670 mm (26.4 in) of Y and 625 mm (24.6 in) of Z travel, a 1630 x 760 mm (64.2 x 29.9 in) table and a 1,500 kg (3,307 lb) table load. DN Solutions, called Doosan Machine Tools before 2022, has no model of this name in its current lineup, and the table for it holds two groups of rows that disagree, so the listed figures need care.

The first group describes a fast BT 40 machine. BT 40 is standard at 15,000 RPM and 22 kW (29.5 hp), with BT 50 at 12,000 RPM and 30 kW (40.2 hp) as the option. The tool changer is an arm type with 40 positions and a 2.0 sec tool-to-tool time, and rapids are 36 m/min (1,417 ipm) in X and Y and 30 m/min (1,181 ipm) in Z.

The second group reads like a different, heavier build. It gives a BIG PLUS CAT50 shank, 8000/10000 rpm, 22/26 kW (29.5/35 Hp), 165.5/353.3 Nm (122/260.6 ft-lbs) and a changer capacity of 30. Its travels are 762 mm (30 in) in Y and 650 mm (25.6 in) in Z with an X row of 2,160mm, and its rapids are 30 m/min (1181 in/min) in X and Y and 24 m/min (945 in/min) in Z. Tools are limited to 125/220 mm (4.9/8.7 in) in diameter and 350 mm (13.8 in) in length.

Some rows stand without contradiction: roller-type linear guideways on all axes, optional through-spindle coolant at 70 bar (1,015 PSI), positioning accuracy of ±0.004 mm (±0.00016 in), repeatability of ±0.002 mm (±0.00008 in), a Fanuc 31i-B5 control with Doosan Smart Machine and a weight of 15,300 kg (33,730 lbs). For travel, taper, spindle and magazine, take the answer from the plate and manual of the machine in question before accepting a job on any of these numbers.