Brother SPEEDIO M140X1

The Brother SPEEDIO M140X1 is a 30-taper machining center with a tilting rotary table that can also turn. Travels are 200 × 440 × 305 mm (7.9 × 17.3 × 12.0 in), the A axis tilts from 5° to -95°, the C axis rotates a full 360°, and the C table is rated as a turning spindle at up to 2,000 rpm with 4.2 kW. Brother has discontinued the M140X1, so it is now bought used.

The turning capability is what separates it from a plain five-axis 30-taper machine. The table nose follows ISO702-4 No.5 (JISB6109-2), a spindle-nose standard for mounting chucks, and the table size is listed as D140 (D5.5). A small round part can be turned, then drilled, tapped and milled on several faces without leaving the chuck. Valve bodies, fittings and small housings are the obvious fit.

The work has to be small and balanced. Table load is 40 kg (88.2 lb) and the inertia limit is 0.32 kg·m² (1093 lb·in²), which matters more than weight once the table spins for turning. X travel is 200 mm (7.9 in), less than the Y stroke of 440 mm (17.3 in).

The milling spindle runs to 10,000 rpm and is rated 10.1 kW for 10 min and 6.7 kW continuous, with tapping up to 6,000 rpm. The magazine holds 22 tools of up to 200 mm (7.9 in) in length, 80 mm (3.1 in) in diameter and 3 kg (6.6 lb) each, and changes tool to tool in 0.9 sec and chip to chip in 1.4 sec. Rapids are 50 m/min (1,969 ipm) on all three linear axes, but the maximum cutting feedrate is 10,000 mm/min (394 ipm). The SPEEDIO S300X2 lists 30,000 mm/min (1,181 ipm), so contouring here runs slower than on the three-axis models. The rotary axes index at 60 rpm on A and 200 rpm on C.

For installation, the machine weighs 2,370 kg (5,226 lb), stands 2513 mm (98.9 in) tall and occupies 1,280 × 3,641 mm (50.4 × 144.7 in). It needs a 9.5 kVA supply and 130 L/min of air at 0.4 - 0.6 MPa. The listed power-supply row omits the voltage, so confirm it before moving a used machine in.