Hwacheon AF-16

The Hwacheon AF-16 is a large horizontal machining center for heavy prismatic parts: a 2,200 x 1,800 mm (86.6 x 70.9 in) table (1,600 x 1,600 mm (63.0 x 63.0 in) as an option), 15,000 kgf (33,069 lb) of table load and room for a workpiece of Ø2,500 x 1,800 mm (Ø98.4 x 70.9 in). Travels are 2,600 mm (102.4 in) on X, or 3,000 mm (118.1 in) as an option, 1,600 mm (63.0 in) on Y and 1,500 mm (59.1 in) on Z, with a full 360° B axis indexing in 0.001° steps.

Three spindles are offered, and the choice decides what kind of work the machine is for. The 3K is a gear-driven spindle to 3,000 rpm with a Ø180 mm (Ø7.1 in) bearing and is the only version with a 300 mm (11.8 in) W axis, which points it at deep boring and heavy roughing. The 8K and 12K use built-in motors and a Ø100 mm (Ø3.9 in) bearing, running to 8,000 rpm and 12,000 rpm. Power is 26 / 22 kW (34.9 / 29.5 hp) for the 3K and 8K, and 30 / 25 kW (40.2 / 33.5 hp) for the 12K. All three take BBT-50 tooling, with CAT-50 as an option.

As standard the machine has no pallet changer. A 2-APC adds 2 pallets and a 10-pallet PPL adds 10, but both lower the table load, to 7,000 kgf (15,432 lb) and 5,000 kgf (11,023 lb) respectively, and the 2-APC grows the footprint from 8,267 x 6,620 mm (325.5 x 260.6 in) to 11,607 x 7,335 mm (457.0 x 288.8 in). Buyers loading parts near 15,000 kgf will have to work without pallet automation.

The magazine holds 60 tools with fixed-address selection, or 120 or 180 as options, taking tools up to Ø120 mm (Ø4.7 in) with adjacent pockets full, Ø250 mm (Ø9.8 in) with them empty, 550 mm (21.7 in) long and 25 kgf (55 lb). Rapids are 16 m/min (630 ipm) on X, Y and Z, 12 m/min (472 ipm) on W, and the B axis turns at 1.5 rpm. The machine weighs 45,000 kgf (99,207 lb), 50,000 kgf (110,230 lb) with the 2-APC, needs 55 kVA, holds 1,300 L of coolant and runs a Fanuc 31i-B.