NEW PRODUCTS LU7000EX
- Powerful 2-saddle lathe for large workpieces
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- Higher productivity with powerful cutting
- A 2-saddle lathe that can machine large workpieces with max turning diameter of ø900 mm and max workpiece weight of 11,000 kg (Optional). High rigidity, high power spindles (45 kW, 55 kW, 75 kW) that provide stable heavy-duty cutting with full utilization of the upper and lower turrets are available. Further dimensional stability is achieved with use of the Thermo- Friendly Concept.
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ø375 B15 Spindle
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- Wide range of spec variations to handle all types of workpiece
- The lineup offers 4 types of spindle bore diameter and 5 different distances between centers. Handles various types of machining with specs such as a milling tool spindle, selftraveling tailstock, and long boring bar that can cut internal diameter with extension of 1,200 mm. Precision threading that minimizes chatter is also possible with the Okuma Intelligent Technology Machining Navi T-g (threading).
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Self-traveling tailstock (Optional)
Machine Specifications
| Model | Unit | LU7000 EX (L) | LU7000 EX (M) | ||
|---|---|---|---|---|---|
| 2SC×2000 | |||||
| Capacity | Swing over bed | Upper/Lower turret | mm (in.) | ø1,200 (ø47.24)*1 | |
| Swing over saddle | Upper/Lower turret | mm (in.) | ø770 / ø780 (ø30.31 / ø30.71) | ||
| Max turning diameter | Upper/Lower turret | mm (in.) | ø900 / ø670 (ø35.43 / ø26.38) | ø900 / ø670 (ø35.43 / ø26.38) (L radial) | |
| Max work length | mm (in.) | 2,000 (78.74) | |||
| Max workpiece weight (including chuck) |
Cantilever support | kg (lb) | B08 : 1,850 (4,070) [B12 : 4,000 (8,800), B15 : 4,000 (8,800), B22 : 11,000 (24,200)] (when L/D=1.0*2) B08 : 1,300 (2,860) [B12 : 2,900 (6,380), B15 : 2,900 (6,380), B22 : 8,000 (17,600)] (when L/D=2.5*2) |
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| Travels | X-axis | Upper/Lower turret | mm (in.) | 505 / 390 (19.88 / 15.35) | |
| Z-axis | Upper/Lower turret | mm (in.) | 2,150 / 2,150 (84.65 / 84.65) | ||
| C-axis control | deg | - | 360° (min control angle 0.001°) | ||
| Spindle | Spindle speed | min-1 | B08 : 10 - 1,500 [B12 : 8 - 750, B15 : 5 - 500, B22 : 5 - 350] | ||
| Speed ranges | B08 : Auto 4-speed (4 gears) [B12·B15·B22 : Auto 2-speed (2 gears)] | ||||
| Spindle torque (30 min/cont) |
B08 | N-m (ft-lbf) | 45 kW : 9,511/7,820 (6,993/5,750) [55 kW : 10,146/9,511 (7,460/6,993), 75 kW : 10,146/10,146 (7,460/7,460)] | ||
| B12 | N-m (ft-lbf) | 45 kW : 8,189/6,733 (6,021/4,950) [55 kW : 10,009/8,189 (7,359/6,021), 75 kW : 10,919/10,919 (8,028/8,028)] | |||
| B15 | N-m (ft-lbf) | 45 kW : 8,595/7,067 (6,319/5,196) [55 kW : 10,505/8,595 (7,724/6,319), 75 kW : 10,505/10,505 (7,724/7,724)] | |||
| B22 | N-m (ft-lbf) | 45 kW : 8,883/7,304 (6,531/5,370) [55 kW : 10,857/8,883 (7,983/6,531), 75 kW : 11,567/11,567 (8,505/8,505)] | |||
| Spindle nose type | B08 : JIS A2-15 [B12 : JIS A2-20, B15 : JIS A2-20, B22 : ø725 flat] | ||||
| Spindle bore dia | mm (in.) | B08 : ø200 (ø7.87) [B12 : ø320 (ø12.60), B15 : ø375 (ø14.76), B22 : ø560 (ø22.05)] | |||
| Spindle bearing dia | mm (in.) | B08 : ø280 (ø11.02) [B12 : ø440 (ø17.32), B15 : ø480 (ø18.90), B22 : ø700 (ø27.56)] | |||
| Turret | Type | Upper/Lower turret | V12 / V10 | Multitasking radial V12 radial / V10 (L radial) | |
| No. of tools | Upper/Lower turret | 12 / 10 | L, M : 12 / L : 10 | ||
| OD tool shank dimensions | mm (in.) | 40 (1.57) | |||
| ID tool shank diameter | mm (in.) | ø63 (ø2.48) | |||
| Milling Tool | Speed range | min-1 | - | 40 - 3,500 | |
| Milling tool speed range | - | Infinitely variable | |||
| Rapid traverse | Rapid traverse | X, Z-axis | m/min (fpm) | X : 20, Z : 20 (X : 6.10, Z : 6.10) | |
| Rapid traverse | C-axis | min-1 | - | 50 | |
| Cutting feedrate | X, Z-axis | mm/rev | 0.001 - 1,000.000 | ||
| Tailstock | Quill diameter | mm (in.) | ø180 (ø7.09) | ||
| Quill bore taper | MT No. 6 (built-in) | ||||
| Quill travel | mm (in.) | 350 (13.78) | |||
| Maximum tailstock thrust | kN | 26 | |||
| Motors | Spindle motors (30 min/cont) | kW (hp) | VAC 45 / 37 [VAC 55 / 45, VAC 75 / 60] (VAC 60 / 49 [VAC 73 / 60, VAC 100 / 80]) | ||
| Milling tool spindle motors | kW (hp) | - | VAC 15 / 11 (20 / 15) (30 min/cont) | ||
| Axis drive motors | X-axis | kW (hp) | XA : 5.2 (6.93), XB : 5.5 (7.33) | ||
| Z-axis | kW (hp) | ZA : 7.3 (9.73), ZB : 7.3 (9.73) | |||
| Coolant motors (50/60 Hz) | kW (hp) | 0.55 (0.73) / 0.75 (1) × 2 turrets | |||
| Machine size | Height | mm (in.) | 3,300 (129.92) | ||
| Floor space (width × depth) (including tank) | mm (in.) | 7,147 × 3,256 (281.38 × 128.19) | |||
| Machine weight | kg (lb) | 35,000 (77,000) | |||
| CNC | OSP-P300LA | ||||
[ ]: Optional
*1. B08 spindle specs limited to ø1,140 mm only in range of 30 mm from spindle nose.
*2. L: Workpiece length, D: Workpiece diameter