| | LT660 | LT760 | LT860 |
CAPACITY: |
Centers height | mm | 330 | 380 | 430 |
Swing over bed | mm | 660 | 760 | 860 |
Width of bed | mm | 560 | 560 | 560 |
Distance between centers | mm | 1410 1910 2910
3910 4910 5910 | 1350 1850 2850
3850 4850 5850 | 1350 1850 2850
3850 4850 5850 |
SPINDLE: |
Spindle bore | mm | 103 | 132 | 132 |
Spindle nose DIN 55027 | No. | 11 | 11 | 11 |
Front bearing diameter | mm | 140 | 170 | 170 |
Spindle taper | Metric | 120 | 140 | 140 |
HEAD STOCK: |
Number of spindle speeds - MC | | 3 | 3 | 3 |
I - Range | rpm | 9-55 | 7-42 | 7-42 |
II - Range | rpm | 37-220 | 28-170 | 28-170 |
III - Range | rpm | 220-1320 | 165-1015 | 165-1015 |
TRAVEL AND FEED RATES: |
Longitudinal feed (Z-axis) | m/min | 8 (max) | 8 (max) | 8 (max) |
Lateral feed (X-axis) | m/min | 8 (max) | 8 (max) | 8 (max) |
Rapid traverse (Z and X - axis) | m/min | 8 (max) | 8 (max) | 8 (max) |
Cross slide maximum travel | mm | 430 | 430 | 430 |
BALL SCREW: |
Z-axis | mm | 50x10 | 50x10 | 50x10 |
X-axis | mm | 32x5 | 32x5 | 32x5 |
TAIL STOCK: |
Quill diameter | mm | 105 | 105 | 105 |
Quill travel | mm | 225 | 225 | 225 |
Quill internal taper | Morse | 6 | 6 | 6 |
DRIVES: |
Main drive power | kW | 15 KW (AT160L4) | 18.5kW (AT180M4) | 18.5 kW (AT180M4) |
Z-axis servo drive power | N.m. | 18 N.m
(3.77kW) (1FK7100) | 18 N.m.
(3.77kW) (1FK7100) | 18 N.m
(3.77kW) (1FK7100) |
X-axis servo drive power | N.m. | 11 N.m
(2.29kW) (1FK7063) | 11 N.m
(2.29kW) (1FK7063) | 11 N.m
(2.29kW) (1FK7063) |
Spindle maximum torque | N.m. | 2000 | 2250 | 2250 |
Z-axis tow strength | daN | 1250 | 1250 | 1250 |
X-axis tow strength | daN | 1050 | 1050 | 1050 |
TOOL HOLDER: Quick-change MC (Turret head) | | MC | MC | MC |
CNC SYSTEM: | | SIEMENS
Available also: Heidenhain;Fanuc;Fagor | SIEMENS
Available also: Heidenhain;Fanuc;Fagor | SIEMENS
Available also: Heidenhain;Fanuc;Fagor |
WEIGHT FOR DBC: |
- 3000 mm | Kg | 5700 | 6060 | 6300 |