Yasda YMC 650

The Yasda YMC 650 is the larger of the maker's two micro centers. Yasda describes it as an increase in size over the YMC 430, with the versatility to handle larger workpieces while maintaining ±1 µm positioning accuracy. The table working size is 700 x 550 mm (27.6 x 21.7 in), and Y and Z travel are 500 mm (19.7 in) and 280 mm (11.0 in).

The spindle defines the machine. The base unit runs 200-40,000 min-1 with an HSK-E32 taper, the same range as the YMC 430. HSK-E32 is a small interface for small tools, so this is not a general vertical machining center in a bigger casting. It is a micro-milling machine with room for a larger mould insert, a multi-cavity plate or a pallet of small parts.

For work that needs somewhat larger tools, an optional spindle runs 200-35,000 min-1 with HSK-E40. The choice carries through to the magazine. The base ATC holds 32 tools, and 90 tools is the option with the HSK-E32 spindle. With the HSK-E40 spindle the capacities are 24 tools or 102 tools.

Z travel is the tight dimension, at 280 mm. Plan fixture height carefully, especially if the optional 1 axis rotary table is fitted: it has a Φ200 mm table and 40 kg loading capacity. A robot interface for EROWA/System 3R is optional. The control is a FANUC 31i-B5 Plus and the machine is 2,700 mm (106.3 in) high. No X travel figure is listed here, so confirm it with Yasda before planning long parts.