Machine Comparison
Okuma MB-46VAE vs Okuma MB-56V
Okuma vs Okuma · Vertical Machining Centers
Summary
The Okuma MB-46VAE and the Okuma MB-56V are BT 40 vertical machining centers with the same spindle power: 11/7.5 kW (15/10 hp) standard, and 22/18.5 kW (30/25 hp) as an extra-cost option. They serve different jobs because of size. The MB-56V has 1,050 mm (41.3 in) of X travel against 560 mm (22.0 in), and 560 mm (22.0 in) of Y against 460 mm (18.1 in). Z travel is 460 mm (18.1 in) on both.
The MB-56V table is 1,300 × 560 mm against 760 x 460 mm (29.9 x 18.1 in). The MB-46VAE lists the wider choice of optional magazines, 32, 48 or 98 tools against 32 or 48; both start at 20. Rapids are listed as 32 m/min (X/Y) and 24 m/min (Z) for the MB-46VAE, and 40 m/min in X-Y and 32 m/min in Z for the MB-56V.
Specifications Comparison
| Specification | Okuma MB-46VAE | Okuma MB-56V |
|---|---|---|
| X-Axis Travel | 560 mm (22.0 in) | 1,050 mm (41.3 in) ▲ |
| Y-Axis Travel | 460 mm (18.1 in) | 560 mm (22.0 in) ▲ |
| Z-Axis Travel | 460 mm (18.1 in) | 460 mm (18.1 in) |
| Table Size | 760 x 460 mm (29.9 x 18.1 in) | 1,300 × 560 mm (22.05 × 51.18 in) |
| Spindle Power | 11/7.5 kW (15/10 hp) standard; 22/18.5 kW (30/25 hp) optional | 11/7.5 kW (15/10 hp) standard; 22/18.5 kW (30/25 hp) optional |
| Spindle Taper / Nose | BT 40 | BT 40 |
| Tool Capacity | 20 (standard); 32, 48, or 98 optional | 20 [32, 48] |
| Rapid Traverse | 32 m/min (X/Y); 24 m/min (Z) | X-Y: 40 Z: 32 m/min (1,575/1,260 ipm) |
Advantages
Okuma MB-46VAE
- Optional 98-tool magazine; the Okuma MB-56V lists 32 or 48 tools as options
- A smaller machine for small precision parts that fit within 560 mm (22.0 in) of X and 460 mm (18.1 in) of Y
Okuma MB-56V
- 1,050 mm (41.3 in) of X travel against 560 mm (22.0 in)
- 560 mm (22.0 in) of Y travel against 460 mm (18.1 in)
- 1,300 × 560 mm table for long plates, rails or several vises in a row, against 760 x 460 mm
Verdict
Choose by part length. The Okuma MB-56V is for long, flat parts and multi-vise setups that need 1,050 mm (41.3 in) of X travel and a 1,300 mm table. The Okuma MB-46VAE is for small precision parts that fit inside 560 mm (22.0 in) of X, and for jobs that need many tools loaded, since it lists a 98-tool option. Spindle power and taper are the same, so the spindle does not separate them; the work envelope does.