the lt series is a series of cnc machine tools with high precision, high rigidity and high cost performance. it has the characteristics of rapid traverse speed, high chip parameters, constant surface speed, etc., and each axis has a safety clutch and can choose rear or side row according to the layout of the workshop. chip conveying device, the machine tool is assembled by a special team composed of professional and skilled technology under the guidance of expert technology.
main feature
•servo motors all use alpha motors
•the system adopts japanese original fanuc frank, 10.4-inch led color screen, multi-language display.
.the bed is made of no. 25 cast iron with grain size, after aging treatment, with reinforcing ribs to ensure sufficient rigidity, and the bed is designed for easy chip removal.
• two axes adopt rigid casting hard rails, x and z axes adopt high-precision ball screws, the rails are quenched and finely ground and plastic-coated, with reasonable spacing, automatic lubrication, and high stability.
• 20m/min rapid traverse for both axes, powered chuck or standard gripper system.
• hydraulic tailstock, programmable, the tailstock is supported by a v-rail and a flat rail.
technical specifications:
| item | lt 20 | |
| capacity | between centre length | 670mm |
| maximum machining dia | φ370mm | |
| maximum turning length | 670mm（without chuck） | |
| standard chuck size | 10" | |
| standard chucking cylinder | syh-1877 | |
| cnc sysitem | fanuc | oi-tf |
| main spindle | spindle type | cartridge |
| spindle nose | a2-8 | |
| spindle bore | 86mm | |
| standard bar capacity | 74mm | |
| front bearing dia | 120mm | |
| std spingle speed | 50-3000rpm | |
| power | spindle motor power continuous | 11kw |
| spindle motor powerintermittentd 5min） | 15kw | |
| full power range | 875-2625 | |
| spindle motor model | fanuc;alpha p-22 | |
| turret | pragati | center high100mm |
| number of tools max | 12 | |
| a/f of turret disc | 340mm | |
| maximum boring bar dia | 40mm | |
| od turning tool size | 25 x 25mm | |
| axis accuracy | positioning for x、z axes as per iso | ± 0.005mm |
| repeatability for x、z axes as per iso | ± 0.003mm | |
| x-axis | axes motor model | fanuc;alpha c-12 |
| x-axis guide ways | hardenedstrip | |
| x-axis stroke | 195mm | |
| x-axis rapid rate | 20m / min | |
| x-ball screw dianndpitch | 32 x 10mm | |
| x-motor torque | 12nm | |
technical specifications:
| item | lt 20 | |
| z-axis | axes motor model | fanucjalpha c-12 |
| z-asis guideways | hardenedstrip | |
| z-axis stroke | 670 mm | |
| z-axis rapid rate | 20m / min | |
| z-ball screw dianndpitch | 40 x 10mm | |
| z-motor torque | 12nm | |
| tailatock | tailstock quill travel | 120mm |
| tailstock base travel | 425mm | |
| tailstock thrust (max) | 500@20bar | |
| tailstock quill dia | 80mm | |
| quill taper | mt-4 | |
| tailstock centre type | add on | |
| misc | coolant tank capacity | 160l |
| system pressure (max) | 30kg / cm² | |
| hydraulic pump capacity | 14 l/min | |
| power pack tank capacity | 45l | |
| overall machine dimension | 3433 x1684 x1720mm | |
| overall machine weight | 5000kg | |
