Brother SPEEDIO S300X1N

The SPEEDIO S300X1N, as its table on this page lists it, is a small five-axis BT30 machine: 300 x 300 x 250 mm (11.8 x 11.8 x 9.8 in) of linear travel, an A axis tilting from -30 to +120 degrees, a C axis with 360 degrees continuous rotation, and a 16,000 rpm spindle rated 5.5 kW (7.4 hp). The control is listed as Brother CNC-C00 (5-axis simultaneous).

The envelope is compact. Workpieces are limited to 300 mm (11.8 in) in diameter, and with 250 mm (9.8 in) of Z the fixture, part and tool all have to fit a short stack once the A axis tilts. That points to small, multi-face parts: housings, manifolds and brackets that would otherwise need several setups on a three-axis machine with a vise.

The 16,000 rpm spindle and 5.5 kW (7.4 hp) rating favour small end mills and drills in aluminium and similar materials. Heavy roughing in steel is not what this spindle is for. The 22-position ATC changes tool to tool in 0.9 seconds, which keeps cycles short on parts with many drilled and tapped holes at different angles.

The machine weighs 2,800 kg (6,170 lb); plan the floor and the rigging for that, since the table gives no footprint, air demand or electrical rating. The SPEEDIO S500X1N is listed with the same 5.5 kW (7.4 hp) spindle rating, so moving up a size in this generation does not by itself buy more spindle power.

Before buying, confirm the exact configuration and the rapid traverse rates with Brother, as the figures available for this model are thin.