Machine Comparison
Okuma 2SP-V40 vs Okuma 2SP-V760EX
Okuma vs Okuma · CNC Lathes
Summary
The Okuma 2SP-V40 and the Okuma 2SP-V760EX are both two-spindle lathes for chuck work, but they are different size classes and serve different jobs. The Okuma 2SP-V40 turns parts up to 400 mm (15.75 in) in diameter and 450 mm (17.72 in) long; the Okuma 2SP-V760EX turns up to 760 mm (29.92 in) and 770 mm (30.31 in).
The larger machine has the stronger spindle, 30/22 kW (40/30 hp) on a 30 min/cont rating, against 22/18.5 kW (30/25 hp). The Okuma 2SP-V40 runs faster, 25–2,500 rpm against 20–2,000 rpm, as suits its smaller diameters. Rapid traverse is the same on both at 24 m/min (78.74 fpm).
Specifications Comparison
| Specification | Okuma 2SP-V40 | Okuma 2SP-V760EX |
|---|---|---|
| Max Turning Diameter | 400 mm (15.75 in) | 760 mm (29.92 in) ▲ |
| Max Turning Length | 450 mm (17.72 in) | 770 mm (30.31 in) ▲ |
| Max Spindle Speed | 25–2,500 rpm ▲ | 20–2,000 rpm |
| Spindle Power | 22/18.5 kW (30/25 hp) | 30/22 kW (30 min/cont) (40/30 hp (30 min/cont)) ▲ |
| Rapid Traverse | 24 m/min (78.74 fpm) | 24 m/min (78.74 fpm) |
Advantages
Okuma 2SP-V40
- Higher spindle speed: 25–2,500 rpm against 20–2,000 rpm
- Sized for disc, hub and ring parts up to 400 mm (15.75 in) that do not need the larger machine
Okuma 2SP-V760EX
- Turning diameter of 760 mm (29.92 in) against 400 mm (15.75 in)
- Turning length of 770 mm (30.31 in) against 450 mm (17.72 in)
- 30/22 kW (40/30 hp) spindle against 22/18.5 kW (30/25 hp)
Verdict
Part diameter makes this choice. Choose the Okuma 2SP-V40 for disc, hub and ring parts up to 400 mm (15.75 in), where its 2,500 rpm top speed is the useful advantage. Choose the Okuma 2SP-V760EX for large discs, drums and housings up to 760 mm (29.92 in) in diameter and 770 mm (30.31 in) long, which also get the 30/22 kW (40/30 hp) spindle. Rapid traverse is identical, so nothing else separates them.