250L Series Heavy Load Hard Rail Type CNC Turning Lathe
HIGHLIGHT
- High-strength hard rail structure with exceptional stability
- Screw preload design in the transmission system
- Excellent precision retention and minimal thermal deformation
Technical Specifications
- 250L10 Series
- 250L15 Series
- 250L20 Series
- 250L30 Series
| ITEM | UNIT | 250L10 | 250LM10 | 250LMY10 |
| Max. bed rotating diameter | mm | Φ860 | Φ860 | Φ860 |
| Max. machining diameter | mm | Φ570 | Φ550 | Φ540 |
| Max. machining length | mm | 930 | 900 | 780 |
| Spindle nose | ASA | A2-8 | A2-8 | A2-8 |
| Hydraulic cylinder/chuck | inch | 10″ | 10″ | 10″ |
| Spindle through-hole diameter | mm | Φ86 | Φ86 | Φ86 |
| Max. bar through-hole diameter | mm | Φ76 | Φ76 | Φ76 |
| Max. spindle speed | rpm | 3200 | 3200 | 3200 |
| Spindle motor power | kw | 15/18.5 | 15/18.5 | 15/18.5 |
| Spindle motor torque | Nm | 286-472 | 286-472 | 286-472 |
| X-axis travel | mm | 300 | 280 | 310 |
| Y-axis travel | mm | – | – | 120±60 |
| Z-axis travel | mm | 980 | 965 | 880 |
| X/Z axis rail specification | spec | Hard Rail | Hard Rail | Hard Rail |
| Power turret type | / | Servo turret | BMT65 | BMT65 |
| Tool station | / | 12T | 12T | 12T |
| ITEM | UNIT | 250L15 | 250LM15 | 250LMY15 |
| Max. bed rotating diameter | mm | Φ640/860 | Φ640/860 | Φ860 |
| Max. machining diameter | mm | Φ570 | Φ550 | Φ540 |
| Max. machining length | mm | 1480/1460 | 1470/1460 | 1340 |
| Spindle nose | ASA | A2-11 | A2-11 | A2-11 |
| Hydraulic cylinder/chuck | inch | 12″ | 12″ | 12″ |
| Spindle through-hole diameter | mm | Φ102 | Φ102 | Φ102 |
| Max. bar through-hole diameter | mm | Φ90 | Φ90 | Φ90 |
| Max. spindle speed | rpm | 2500 | 2500 | 2500 |
| Spindle motor power | kw | 15/18.5 | 15/18.5 | 15/18.5 |
| Spindle motor torque | Nm | 440-544 | 440-544 | 440-544 |
| X-axis travel | mm | 300 | 280/300 | 310 |
| Y-axis travel | mm | – | – | 120±60 |
| Z-axis travel | mm | 1550 | 1560 | 1450 |
| X/Z axis rail specification | spec | Hard Rail | Hard Rail | Hard Rail |
| Power turret type | / | Servo turret | BMT65 | BMT65 |
| Tool station | / | 12T | 12T | 12T |
| ITEM | UNIT | 250L20 | 250LM20 | 250LMY20 |
| Max. bed rotating diameter | mm | Φ630/840 | Φ630/840 | Φ840 |
| Max. machining diameter | mm | Φ570 | Φ550 | Φ540 |
| Max. machining length | mm | 2050/2090 | 2080/2020 | 1940 |
| Spindle nose | ASA | A2-11 | A2-11 | A2-11 |
| Hydraulic cylinder/chuck | inch | 12″ | 12″ | 12″ |
| Spindle through-hole diameter | mm | Φ102 | Φ102 | Φ102 |
| Max. bar through-hole diameter | mm | Φ90 | Φ90 | Φ90 |
| Max. spindle speed | rpm | 2500 | 2500 | 2500 |
| Spindle motor power | kw | 15/18.5 | 15/18.5 | 15/18.5 |
| Spindle motor torque | Nm | 440-544 | 440-544 | 440-544 |
| X-axis travel | mm | 300/305 | 320 | 318 |
| Y-axis travel | mm | – | – | 120±60 |
| Z-axis travel | mm | 2100 | 2150/2110 | 2000 |
| X/Z axis rail specification | spec | Hard Rail | Hard Rail | Hard Rail |
| Power turret type | / | Servo turret | BMT65 | BMT65 |
| Tool station | / | 12T | 12T | 12T |
| ITEM | UNIT | 250L30 | 250LM30 | 250LMY30 |
| Max. bed rotating diameter | mm | Φ610/820 | Φ610/820 | Φ820 |
| Max. machining diameter | mm | Φ580/570 | Φ570/550 | Φ540 |
| Max. machining length | mm | 3200 | 3200 | 3080 |
| Spindle nose | ASA | A2-11 | A2-11 | A2-11 |
| Hydraulic cylinder/chuck | inch | 12″ | 12″ | 12″ |
| Spindle through-hole diameter | mm | Φ102 | Φ102 | Φ102 |
| Max. bar through-hole diameter | mm | Φ90 | Φ90 | Φ90 |
| Max. spindle speed | rpm | 2500 | 2500 | 2500 |
| Spindle motor power | kw | 15/18.5 | 15/18.5 | 15/18.5 |
| Spindle motor torque | Nm | 440-544 | 440-544 | 440-544 |
| X-axis travel | mm | 305 | 320 | 318 |
| Y-axis travel | mm | – | – | 120±60 |
| Z-axis travel | mm | 3300 | 3300 | 3180 |
| X/Z axis rail specification | spec | Hard Rail | Hard Rail | Hard Rail |
| Power turret type | / | Servo turret | BMT65 | BMT65 |
| Tool station | / | 12T | 12T | 12T |
SPINDLE
Equipped with a high-performance spindle that minimizes vibration and thermal displacement during spindle rotation, the high-torque spindle delivers exceptional machining capabilities.
Mechanical Spindle
- A2-11 Bore Diameter Φ117/Φ102 2500rpm Torque 440/544Nm 15/18.5kW 12-inch Chuck
- A2-15 Bore Diameter Φ132 1500 rpm Torque 550-680 Nm 15/18.5 kW 15-inch Chuck
POWER TURRET
The servo turret is driven by a high-efficiency servo motor, with both the drive system and component count optimized and improved. This reduces failure rates while enhancing maintenance convenience, thereby increasing the machine tool's stability and reliability.
M-Power Turret BMT65
- 12 dynamic tool positions enable turning, milling, drilling, and tapping operations on a single workpiece within the same lathe, eliminating errors caused by part transfer between machines while saving time and labor.
- The power turret delivers ample torque output to effortlessly handle diverse machining tasks, featuring tool rotation only at the working position while the rest remain stationary.
MY-Power Turret BMT65
- 12 Tool Positions
- Rotational Speed: 4500 rpm
- Y-axis: 120 ± 60
- Power: 7.5 kW / 47.8 Nm
STRUCTURE
Heavy-Duty Cast-Iron Base and Components
- Large hard-rail type high-load machine with large-diameter, low-speed, and heavy-duty cutting capabilities.
- HT300 cast iron is selected as the casting material due to its high wear resistance, compressive strength, and vibration-damping properties. Combined with a specialized casting aging process, this material optimizes internal structure, reduces internal stresses, and ensures the machine tool maintains high precision over the long term.
- Highly rigid square rails, the slide surface is designed through professional production procedures and precision oil guide grooves, and the transmission efficiency is excellent.
- The bed has a 30-degree slant integrated box structure, low center of gravity, and stable accuracy.
OPTIONAL
Hydraulic Steady Rest
For turning longer parts, various types of hydraulic steady rests are available
(single, double-support, or double)
