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- LB3000 EX Ⅱ
- Long-term accuracy stability and various process-intensive machining for improved productivity.
- Video Brochure
- Best-selling lathes that achieves improved productivity in high accuracy parts machining.
- Input Shaft
- The LB3000 EX Ⅱ is capable of a variety of machining processes, such as keyway and plane machining using the Y-axis, and gear machining using turret skiving, all in one machine.
- 3D Machine View
- A 3D representation of the LB3000 EX Ⅱ (MY).
- 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 variation
- Complete multitasking with Y-axis functions
One chuck machining even with irregularly shaped workpieces - A 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).
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- Series lineup
- The series has been expanded to four models for selection of the machine size that best suits users' machining work.
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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
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Highlighted Specs
| 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 (19.69, 39.37, 51.18) |
750, 1,500, 2,150 (29.53, 59.06, 84.65) |
150 (5.91) |
| Spindle speed | min-1 | 6,000 | 5,000 | 4,200 | 5,000 |
| 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 (77.95 × 68.27 × 72.40) 2,290 × 1,734 × 1,839 (90.16 × 68.27 × 72.40) |
2,340 × 1,805 × 1,824 (92.13 × 71.06 × 71.81) 3,420 × 2,065 × 1,975 (134.65 × 81.30 × 77.76) 4,344 × 2,185 × 1,975 (171.02 × 86.02 × 77.76) |
3,100× 1,921 × 1,955 (122.05 × 75.63 × 76.97) 4,175 × 2,390 × 2,157 (164.37 × 94.09 × 84.92) 5,515 × 2,505 × 2,005 (217.13 × 98.62 × 78.94) |
1,880 × 1,840 × 1,770 (74.02 × 72.44 × 69.69) |
| Spec extension | M, W, MY, MW | M, W, MY, MW, MYW | M, MY | M |
M: Milling, W: Sub-spindle, Y: Y-axis
