Machine Comparison
Okuma MA-650V vs Okuma MB-46V II
Okuma vs Okuma · Vertical Machining Centers
Summary
The Okuma MA-650V and Okuma MB-46V II are both from Okuma's vertical machining centers lineup, making this a common upgrade or lineup decision for shops already invested in the Okuma ecosystem. The Okuma MB-46V II leads in max spindle speed (8,000 RPM (standard); 15,000 / 20,000 / 25,000 / 35,000 RPM optional vs 6,000 RPM (standard); 12,000 RPM optional). The Okuma MA-650V leads in x travel (1,600 mm (63.0 in) vs 560 mm (22.0 in)). The Okuma MA-650V leads in rapid traverse (40 m/min (X/Y); 32 m/min (Z) vs 32 m/min (X/Y); 24 m/min (Z)). On paper, the Okuma MA-650V edges ahead with advantages in 9 of the compared specifications, though real-world performance depends heavily on your specific applications and workholding. Both machines are proven performers in production environments and represent solid investments for shops in the market for a vertical machining center.
Specifications Comparison
| Specification | Okuma MA-650V | Okuma MB-46V II |
|---|---|---|
| X-Axis Travel | 1,600 mm (63.0 in) ▲ | 560 mm (22.0 in) |
| Y-Axis Travel | 660 mm (26.0 in) ▲ | 460 mm (18.1 in) |
| Z-Axis Travel | 660 mm (26.0 in) ▲ | 460 mm (18.1 in) |
| Max Spindle Speed | 6,000 RPM (standard); 12,000 RPM optional | 8,000 RPM (standard); 15,000 / 20,000 / 25,000 / 35,000 RPM optional ▲ |
| Spindle Power | 15/11 kW (20/15 hp) standard; 22/15 kW (30/20 hp) optional ▲ | 11/7.5 kW (15/10 hp) standard; 22/18.5 kW (30/25 hp) optional |
| Tool Capacity | 32 (standard); 48 or 60 optional ▲ | 20 (standard); 32, 48, or 98 optional |
| Rapid Traverse | 40 m/min (X/Y); 32 m/min (Z) ▲ | 32 m/min (X/Y); 24 m/min (Z) |
| Table Size | 1,600 x 660 mm (63.0 x 26.0 in) ▲ | 760 x 460 mm (29.9 x 18.1 in) |
| Accuracy | ±0.005 mm | ±0.004 mm |
| Repeatability | ±0.003 mm | ±0.002 mm |
| Control | OSP-P300A | OSP-P300A |
| Spindle Taper | No. 50 (BT 50) | BT 40 |
| Max Table Load | 1,200 kg (2,646 lb) ▲ | 500 kg (1,102 lb) |
| Machine Weight | 12,000 kg (26,455 lb) ▲ | 4,800 kg (10,582 lb) |
| Price Range | $175,000 - $235,000 | $110,000 - $145,000 ▲ |
Advantages
Okuma MA-650V
- Greater x travel of 1,600 mm (63.0 in) accommodates larger workpieces
- Greater y travel of 660 mm (26.0 in) accommodates larger workpieces
- Greater z travel of 660 mm (26.0 in) accommodates larger workpieces
- More spindle power at 15/11 kW (20/15 hp) standard; 22/15 kW (30/20 hp) optional for aggressive material removal in harder materials
- Larger tool magazine with 32 (standard); 48 or 60 optional capacity reduces manual tool changes on complex parts
Okuma MB-46V II
- Higher maximum spindle speed of 8,000 RPM (standard); 15,000 / 20,000 / 25,000 / 35,000 RPM optional enables faster cutting on aluminum and non-ferrous materials
- More competitive pricing at $110,000 - $145,000 compared to $175,000 - $235,000
- Backed by Okuma's dealer and service network for parts and support
- Mold and die shops requiring exceptional surface finish from a compact box-way VMC
Verdict
The Okuma MA-650V holds a spec advantage in this comparison, but the right choice depends on your shop's priorities. If the Okuma MA-650V's strengths in areas like X Travel and Y Travel align with your work, it's the clear pick. The Okuma MB-46V II may still win on dealer proximity, existing tooling compatibility, or specific features that matter most to your applications. Request quotes from both dealers and, if possible, run your actual parts on each machine before deciding.