Hwacheon MEGA+120

The Hwacheon MEGA+120 is a large flat-bed CNC lathe with a Ø1,200 mm (Ø47.24 in) swing over the bed, Ø820 mm (Ø32.28 in) of turning diameter over the cross slide and four bed lengths from 3,000 to 6,000 mm (118.11 to 236.22 in) between centres. X travel is 625 mm (24.61 in) and Z travel equals the centre distance.

The spindle is ordered by bore. With a Ø155 mm (Ø6.1 in) bore on an A2-15 nose it runs from 5 to 750 rpm; the Ø255 mm (Ø10.04 in) bore, also on A2-15, runs to 650 rpm; and the Ø320 mm (Ø12.59 in) bore moves to an A2-20 nose and 400 rpm. The gearbox has three automatic ranges. Motor rating depends on the control: 45 / 37 kW (60.3 / 49.6 hp) with the FANUC 0i-TF Plus that is standard, or 55.5 / 37 kW (74.4 / 49.6 hp) with the SIEMENS 828D alternative. An 18 in chuck is listed.

Tooling is a manual 4-way square tool post with four faces for □32 mm shanks, so this is a machine for long, heavy parts with few operations rather than for multi-tool cycles. Rapids are 6 m/min (236.22 ipm) on both axes, with Z slowing to 5 m/min (196.85 ipm) on the 6000 bed, and cutting feed reaches 3,000 mm/min (118.11 ipm). The built-in tailstock has a Ø200 mm (Ø7.87 in) quill with an MT No.6 taper and 260 mm (10.24 in) of quill travel, on a 700 mm (27.56 in) wide bed.

Mass and footprint scale with the bed: 14,600 kg (32,187 lb) and 6,640 mm (261.42 in) long for the 3000 bed, 19,600 kg (43,210 lb) and 9,640 mm (379.53 in) for the 6000. The supply is 76 kVA (TR 80 kVA), or 84 kVA (TR 85 kVA) on the 6000 bed, at 220 V, 60 Hz with FANUC or 380 V, 60 Hz with SIEMENS.