LB4000 EX Ⅱ
SKU: LB4000 EX Ⅱ
Product specifications
- Product type
- CNC Lathe
- Brands
- OKUMA
- Series / Family
- LB
- Model
- LB4000 EX Ⅱ
- Main category
- CNC lathes
- Subcategory
- Horizontal CNC Lathe
About this product
| Item | Unit | LB2000 EX Ⅱ | LB3000 EX Ⅱ | LB4000 EX Ⅱ | LB2500 EX Ⅱ |
|---|---|---|---|---|---|
| Standard chuck size | in | 6 | 8 | 10 | 8 |
| Max turning dia | ømm (øin) | 430 (16.93) | 410 (16.14) | 480 (18.90) | 410 (16.14) |
| Max work length | mm (in) | 300, 520 (11.81, 20.47) | 500, 1,000, 1,300 | 750, 1,500, 2,150 | 150 (5.91) |
| (19.69, 39.37, 51.18) | (29.53, 59.06, 84.65) | ||||
| Spindle speed | min-1 | 6000 | 5000 | 4200 | 5000 |
| Turret | V12 | V12 | V12 | V12 | |
| Motor | kW (hp) | 11/7.5 (20 min/cont) (15/10) | 22/15 (30 min/cont) (30/20) | 30/22 (30 min/cont) (40/30) | 22/15 (30 min/cont) (30/20) |
| Machine size (W × D × H) | mm (in) | 1,980 × 1,734 × 1,839 | 2,340 × 1,805 × 1,824 | 3,100× 1,921 × 1,955 | 1,880 × 1,840 × 1,770 |
| (77.95 × 68.27 × 72.40) | (92.13 × 71.06 × 71.81) | (122.05 × 75.63 × 76.97) | (74.02 × 72.44 × 69.69) | ||
| 2,290 × 1,734 × 1,839 | 3,420 × 2,065 × 1,975 | 4,175 × 2,390 × 2,157 | |||
| (90.16 × 68.27 × 72.40) | (134.65 × 81.30 × 77.76) | (164.37 × 94.09 × 84.92) | |||
| 4,344 × 2,185 × 1,975 | 5,515 × 2,505 × 2,005 | ||||
| (171.02 × 86.02 × 77.76) | (217.13 × 98.62 × 78.94) | ||||
| Spec extension | M, W, MY, MW | M, W, MY, MW, MYW | M, MY | M |
High accuracy specifications overall assure
Slanted-box bed configuration,
with superior construction and rigidity
The primary units of headstock and turret on a box bed are optimally placed for outstanding thermal stability and high rigidity. Exhibits stable machining accuracy even in heavy cutting.
Thermo-Friendly Concept for unparalleled thermal stability
Okuma's Thermo-Friendly Concept is used on all the LB EX machines for extraordinary machining accuracy, using our unique machine design and thermal deviation control technology. Outstanding thermal stability in long-time continuous operation, multitasking, front and back side machining with a subspindle, and even Y-axis machining without troublesome compensation or warming up.
Improved productivity with highest machining capacity in class
LB3000 EX Ⅱ actual data
Rich variationComplete multitasking with Y-axis functions
One chuck machining even with irregularly shaped workpiecesA variety of milling operations can be accommodated with high-accuracy, wide-range Y-axis travel using a double slide system. Achieves complete multitasking with a single chucking (MY, MYW specifications).
Series lineup
The series has been expanded to four models for selection of the machine size that best suits users' machining work.
Max turning dia ø430mm
Max work length 500mm
Max turning dia ø410mm
Max work length 1,300mm
Max turning dia ø480mm
Max work length 2,150mm
Max turning dia ø410mm
Max work length 150mm