Makino D200Z

The Makino D200Z is a small five-axis vertical machining center built around a 30,000 rpm HSK-E50 spindle, which is its standard and only listed spindle. Travels are 350 mm (13.7 in) in X, 300 mm (11.8 in) in Y and 250 mm (9.8 in) in Z over a 300 mm diameter (11.81 in diameter) table. Makino aims it at die and mold tooling and medical parts, where complex 3-D surfaces need blends and matches that reduce or eliminate handwork.

The rotary unit is direct drive on both axes. B is a lightweight tilting structure with 180° (0 to +180) of tilt at 100 rpm, and C rotates 360 degrees continuously at 150 rpm. An integral chuck is built into the table to make the most of work-zone volume and load, giving a maximum part of 300 mm diameter x 210 mm high (conditional) at up to 75 kg (165 lb). Linear rapids and cutting feedrates are both 60 m/min (2,362 ipm).

At 30,000 rpm with an HSK-E50 interface, this is a spindle for small cutters and light finishing passes rather than heavy roughing. Makino uses spindle core and jacket cooling to control thermal growth, deflection and vibration at speed, and the machine sits on wide base castings with core-cooled ballscrews. Motion is handled by Makino's SGI.5 control software, which Makino uses for blends and matches on intricate surfaces.

The tooling side is where the machine is most restrictive. The magazine holds 20 + 1 tools, chip-to-chip time is 3.9 sec, and tools are limited to 3 kg (6.61 lb). Tool diameter is 50 mm / 80 mm (ALL / ADJ) (1.96 in / 3.14 in (ALL / ADJ)): 50 mm with every pocket full, 80 mm with the adjacent pockets empty. A family of molds needing dozens of tools will mean reloading the magazine between jobs.

For a larger magazine on the same table size, the Makino D300 holds 60 tools as standard and has 500 mm (19.7 in) of Y, but its standard spindle is 15,000 rpm with 30,000 rpm as an option.