Hwacheon L1

The Hwacheon L1 is a vertical machining center with two columns 1,150 mm (45.3 in) apart and a 900 mm (35.4 in) wide table, offered in two lengths. The L1 1500 has 1,500 mm (59.1 in) of X travel on a 1,500 x 900 mm (59.1 x 35.4 in) table; the L1 2500 has 2,500 mm (98.4 in) of X on a 2,500 x 900 mm (98.4 x 35.4 in) table. Both share 950 mm (37.4 in) of Y, 500 mm (19.7 in) of Z and a 2,000 kg (4,409 lb) table rating.

Picking a length is mostly a question of part size and floor. The L1 1500 needs 6,340 x 3,585 mm (249.6 x 141.1 in) and weighs 13,000 kg (28,660 lb); the L1 2500 needs 8,540 x 3,585 mm (336.2 x 141.1 in) and weighs 16,000 kg (35,274 lb). Both stand 3,060 mm (120.5 in) tall. Because the table rating is the same on both, a long L1 2500 table carries the same total weight spread over more length, which favours long plates and several setups in a row over a single heavy casting.

Two BT-40 spindles are listed. The 12K runs to 12,000 rpm at 18.5 / 11 kW (24.8 / 14.8 hp); the 20K runs to 20,000 rpm at 37 / 18.5 kW (49.6 / 24.8 hp), so on this machine the faster spindle is also the more powerful one. Bearing bore is Ø70 mm (Ø2.8 in). Rapids are 24 / 36 / 36 m/min (945 / 1,417 / 1,417 ipm) on X, Y and Z, and cutting feed runs to 20,000 mm/min (787 ipm). X, the long axis, is the slowest, with a 6 kW (8.0 hp) motor against 4 kW (5.4 hp) on Y and Z.

The servo-driven magazine and swing arm handle 30 tools, or 40 as an option, in memory-random selection with fixed address optional. Tools may be Ø75 mm (Ø3.0 in) with neighbours fitted or Ø150 mm (Ø5.9 in) with the adjacent pockets empty, 350 mm (13.8 in) long and 8 kg (17.6 lb). The table has five 18 mm T-slots at 160 mm pitch. Plan for 45 kVA at 220V, 60Hz and air at 0.5 to 0.7 MPa x 690 Nℓ/min.

Wider work moves to the Hwacheon L2, whose tables are 1,100 mm (43.3 in) wide in 2,500 and 3,000 mm lengths.