Fanuc Robodrill α-D21MiB5

The Fanuc Robodrill α-D21MiB5 is a BT30 / BBT30 vertical machining center with a 750 x 400 mm (29.5 x 15.7 in) table, a 21-position turret and the Fanuc 31i-B5 control. What marks it out in the listed figures is the DDR 5-axis option: an A-axis tilting from -120° to +30° and a C-axis with 360° continuous rotation.

That tilt range reaches well past horizontal on one side, so undercut faces and features on the far side of a part can be presented to the spindle without a second clamping. The rotary unit, its fixture and the part all have to live inside 400 mm (15.7 in) of Y and 330 mm (13.0 in) of Z travel and under the 300 kg (661 lb) table load, so this is a machine for small 5-axis parts. The listed figures include no X travel, which should be confirmed for any machine under consideration.

The spindle runs at 10,000 RPM with 11 kW (15 hp) as standard; a 24,000 RPM option is listed with a 26 kW (35 hp) peak. Tool change is listed at 0.7 sec tool-to-tool and 1.3 sec chip-to-chip, and rapid traverse at 54 m/min (2,126 ipm). Positioning accuracy is ±0.004 mm and repeatability ±0.002 mm. The machine weighs about 3,900 kg (8,598 lb) on a footprint of roughly 2,050 x 1,750 mm (81 x 69 in).