Hwacheon VT-650Y

The Hwacheon VT-650Y is a Y-axis turn-mill version of the VT-650 vertical lathe. It keeps the Ø800 mm (Ø31.5 in) by 750 mm (29.5 in) turning envelope and adds ±125 mm (±4.9 in) of Y travel to driven tools as standard, so every machine sold under this name is a milling-capable one. It is offered as the VT-650Y / MC with a turret and as the VT-650Y / MG / MC with a CAPTO C5 tool magazine of 16 or 48 tools.

The Y axis is the point of the machine. With ±125 mm of offset either side of centre, the driven tools can mill flats, keyways and pockets and drill holes that do not lie on a radius, work that a C axis alone cannot reach. The driven tools are rated 5.5 / 3.7 kW (7.4 / 5.0 hp) and 3,000 rpm, with an 11 / 5.5 kW (14.8 / 7.4 hp) option for heavier milling, and the capacity is Ø26 mm drilling and M20 tapping. The C axis indexes in 0.0001° steps.

Chuck choice is wider than on the VT-650 table. The standard chuck is 18 in, with 15, 21 and 24 in as options. The spindle has an A2-11 nose, a Ø160 mm (Ø6.3 in) front bearing and 22 / 18.5 kW (29.5 / 24.8 hp), and runs to 1,500 rpm as standard; a 2,000 rpm option and a high-torque 2,000 rpm option are listed. Rapids are 20 / 16 / 16 m/min (787 / 630 / 630 ipm) on X, Z and Y, over 430 mm (16.9 in) of X and 790 mm (31.1 in) of Z.

The turret version has 12 stations; with the magazine the turret drops to 10, and the magazine takes tools up to 400 mm (15.7 in) long and 20 kgf (44 lb). Floor space is 2,200 x 3,400 mm (86.6 x 133.9 in), or 2,930 x 3,400 mm (115.4 x 133.9 in) with the magazine, at 3,300 mm (129.9 in) high. Weight is 13,000 kgf (28,660 lb), or 14,000 kgf (30,864 lb) with the magazine, and supply is 45 kVA.