Hwacheon VT-650

The Hwacheon VT-650 is a vertical turning center for Ø800 mm (Ø31.5 in) by 750 mm (29.5 in) work on an 18 in chuck, and it comes in many forms. The table covers a standard machine, an MG version with a tool magazine, an MC version with driven tools, MG/MC, a twin-spindle 2SP built the same four ways, and a YMC with a ±125 mm (±4.9 in) Y axis, with or without MG.

The base 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; options 1 and 2 raise that to 2,000 rpm. The turret has 12 stations, or 10 on MG versions, takes □32 mm shanks and Ø60 mm boring bars and indexes in 0.2 s/step. X travel is 430 mm (16.9 in) and Z 790 mm (31.1 in), with rapids of 20 / 16 m/min (787 / 630 ipm).

The MG option is what sets this machine apart from a plain turret VTL. It adds a 16-tool CAPTO C5 magazine (16 / 48 on the MG/YMC) taking tools up to Ø75 mm (Ø3.0 in), 400 mm (15.7 in) long and 20 kgf (44 lb), so a job with more tools than the turret holds can run without re-tooling the turret between parts. On MC and YMC machines the driven tools are rated 5.5 / 3.7 kW (7.4 / 5.0 hp) and 3,000 rpm, drill Ø26 mm and tap M20, with 0.0001° C-axis indexing.

Guideways are LM plus box on most versions and box on the YMC. Power demand is 40 kVA for a single machine, 75 kVA for the 2SP and 45 kVA for the YMC, and the coolant tank holds 195 L. Weight runs from 10,000 kgf (22,046 lb) for the standard machine to 20,000 ~ 22,200 kgf (44,092 ~ 48,942 lb) for the 2SP, and height is 3,143 mm (123.7 in), 3,300 mm (129.9 in) on the YMC.