Machine Comparison
Okuma 2SP-150H vs Okuma VTM-80YB
Okuma vs Okuma · CNC Lathes
Summary
The Okuma 2SP-150H and the Okuma VTM-80YB are both listed as turning centers, but they serve different jobs. The Okuma 2SP-150H is a loader-fed two-spindle lathe for short, small-diameter chucked parts. The Okuma VTM-80YB is a large vertical machine for tall workpieces that also need Y-axis milling. Turning length shows the gap: 80 mm (3.15 in) against 1,135 mm (44.69 in).
The Okuma VTM-80YB has the larger spindle motor, 30/22 kW (40/30 hp) against 11/7.5 kW (15/10 hp), and faster rapid traverse at 30 m/min in X, Y and Z against 24 m/min (945 ipm). The Okuma 2SP-150H spins much faster, 50–4,500 rpm against 8–800 rpm, which suits its small-diameter work; the low range of the Okuma VTM-80YB suits large-diameter facing.
Specifications Comparison
| Specification | Okuma 2SP-150H | Okuma VTM-80YB |
|---|---|---|
| Max Turning Length | 80 mm (3.15 in), 150 mm (5.91 in) without loader | 1,135 mm (44.69 in) ▲ |
| Max Spindle Speed | 50–4,500 rpm ▲ | 8–800 rpm |
| Spindle Power | 11/7.5 kW (15/10 hp) | 30/22 kW (40/30 hp) ▲ |
| Rapid Traverse | 24 m/min (945 ipm) | 30 m/min (X, Y, Z) ▲ |
Advantages
Okuma 2SP-150H
- Higher spindle speed: 50–4,500 rpm against 8–800 rpm, for small-diameter parts
- Two spindles for first and second operations in one loader-fed machine
Okuma VTM-80YB
- Turning length of 1,135 mm (44.69 in) against 80 mm (3.15 in)
- 30/22 kW (40/30 hp) spindle against 11/7.5 kW (15/10 hp)
- Rapid traverse of 30 m/min in X, Y and Z against 24 m/min (945 ipm)
- True Y axis for off-center milled features
Verdict
These machines are not alternatives. Choose the Okuma 2SP-150H for volume production of short chucked parts within 80 mm (3.15 in), where two spindles and speeds up to 4,500 rpm keep small-diameter work moving. Choose the Okuma VTM-80YB for large, tall parts up to 1,135 mm (44.69 in) that need 30/22 kW (40/30 hp), low-speed facing and off-center milling on a true Y axis.