Machine Comparison
Okuma MA-650V vs Okuma MB-46V II
Okuma vs Okuma · Vertical Machining Centers
Summary
The Okuma MA-650V and the Okuma MB-46V II are both Okuma vertical machining centers, but they are built for different sizes of work. The MA-650V has 660 mm (26.0 in) of travel in both Y and Z and a 1,530 × 660 mm (60.23 × 25.98 in) table; the MB-46V II has 460 mm (18.1 in) in Y and Z and a 460 × 760 mm (18.11 × 29.92 in) table.
The MA-650V also carries more tools as standard, 32 against 20, and both list a 48-tool magazine as an extra-cost option. The MB-46V II is slightly quicker between cuts: 42 m/min in X-Y and 36 m/min in Z, against 40 m/min in X and Y and 30 m/min in Z.
Specifications Comparison
| Specification | Okuma MA-650V | Okuma MB-46V II |
|---|---|---|
| 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) |
| Table Size | 1,530 × 660 mm (60.23 × 25.98 in) | 460 × 760 mm (18.11 × 29.92 in) |
| Tool Capacity | 32 [opt. 48] | 20 [32, 48] |
| Rapid Traverse | 40 / 40 / 30 m/min (131 / 131 / 98 fpm) | 42/36 m/min (X-Y: 1,654 Z: 1,417 ipm) ▲ |
Advantages
Okuma MA-650V
- 660 mm (26.0 in) of Y and Z travel against 460 mm (18.1 in)
- 1,530 × 660 mm (60.23 × 25.98 in) table for long plates and bars, against 460 × 760 mm
- 32 tools as standard against 20; a 48-tool magazine is optional on both
Okuma MB-46V II
- Faster rapids: 42 m/min in X-Y and 36 m/min in Z against 40 m/min and 30 m/min
- A smaller machine for small prismatic parts that do not need a 1,530 mm table
- Suited to short-cycle work and finishing with small tools
Verdict
Choose by part size. The Okuma MA-650V is the machine for large steel and iron parts, long plates and bars: it has 660 mm (26.0 in) of Y and Z travel, a 1,530 mm long table and 32 tools as standard. The Okuma MB-46V II fits shops making small prismatic parts in short cycles, where its 42 m/min X-Y rapids trim non-cutting time and a 460 × 760 mm table is enough. A part that fits the MB-46V II rarely needs the MA-650V.