Machine Comparison
Okuma 2SP-150H vs Okuma 2SP-2500H
Okuma vs Okuma · CNC Lathes
Summary
The Okuma 2SP-150H and the Okuma 2SP-2500H are both two-spindle lathes for two-operation chuck work, and the Okuma 2SP-2500H is the larger machine. It turns parts up to 200 mm (7.87 in) long against 80 mm (3.15 in) on the Okuma 2SP-150H, or 150 mm (5.91 in) when the smaller machine runs without its loader.
The Okuma 2SP-2500H also has the stronger spindle, 15/11 kW (20/15 hp) against 11/7.5 kW (15/10 hp), and a slightly wider speed range, 45–5,000 rpm against 50–4,500 rpm. Rapid traverse is nearly the same at 25 m/min against 24 m/min. The spindle noses differ: JIS A2-6 on the Okuma 2SP-2500H and a 140 flat nose on the Okuma 2SP-150H, which is the machine for small-diameter parts.
Specifications Comparison
| Specification | Okuma 2SP-150H | Okuma 2SP-2500H |
|---|---|---|
| Max Turning Length | 80 mm (3.15 in), 150 mm (5.91 in) without loader | 200 mm (7.87 in) ▲ |
| Max Spindle Speed | 50–4,500 rpm | 45–5,000 rpm ▲ |
| Spindle Power | 11/7.5 kW (15/10 hp) | 15/11 kW (20/15 hp) ▲ |
| Spindle Taper / Nose | 140 flat | JIS A2-6 |
| Rapid Traverse | 24 m/min (945 ipm) | 25 m/min (82 fpm) ▲ |
Advantages
Okuma 2SP-150H
- Sized for short, small-diameter chucked parts within 80 mm (3.15 in), fed by the loader
- Turning length extends to 150 mm (5.91 in) when run without the loader
- Both spindles carry the same 11/7.5 kW (15/10 hp) rating for two-operation turning
Okuma 2SP-2500H
- Longer turning length: 200 mm (7.87 in) against 80 mm (3.15 in)
- 15/11 kW (20/15 hp) spindle against 11/7.5 kW (15/10 hp)
- Top speed of 5,000 rpm against 4,500 rpm
- Suits flanges, rings and discs of larger turning diameter
Verdict
Choose the Okuma 2SP-150H for volume runs of short, small-diameter chucked parts that stay within 80 mm (3.15 in) and are fed by the loader; nothing in the table argues for the larger machine on that work. Choose the Okuma 2SP-2500H for flanges, rings and discs that need up to 200 mm (7.87 in) of turning length and the 15/11 kW (20/15 hp) spindle. Part size settles this pair.