Machine Comparison
Okuma GENOS M460-VE vs Roku-Roku HC-658
Okuma vs Roku-Roku · Vertical Machining Centers
Summary
The Okuma GENOS M460-VE and the Roku-Roku HC-658 are both vertical machining centers, built for different work. The GENOS M460-VE is a general BT40 machine with a 15,000 rpm, 22/18.5 kW (30/25 hp) spindle. The Roku-Roku HC-658 is a high-speed machine for graphite electrodes and fine mold finishing, with a 32,000 rpm HSK-E40 spindle rated 5.5 kW (7.4 HP) continuous.
The Okuma has the stronger spindle and more tools, 32 against 20 tools, on a longer 1,000 × 460 mm (39.37 × 18.11 in) table. The Roku-Roku spins more than twice as fast and rapids at 60 m/min (2,362 ipm) on all axes, against 40 m/min in X-Y and 32 m/min in Z; its table is 800 x 500 mm (31.5 x 19.7 in).
Specifications Comparison
| Specification | Okuma GENOS M460-VE | Roku-Roku HC-658 |
|---|---|---|
| Table Size | 1,000 × 460 mm (39.37 × 18.11 in) | 800 x 500 mm (31.5 x 19.7 in) |
| Max Spindle Speed | 15,000 rpm | 32000 rpm ▲ |
| Spindle Power | 22/18.5 kW (30/25 hp) ▲ | 5.5 kW (7.4 HP) continuous |
| Spindle Taper / Nose | BT40 | HSK-E40 |
| Tool Capacity | 32 ▲ | 20 tools |
| Rapid Traverse | X-Y 40, Z: 32 m/min (X-Y: 1,575, Z: 1,262 ipm) | 60 m/min (2,362 ipm) all axes ▲ |
Advantages
Okuma GENOS M460-VE
- 22/18.5 kW (30/25 hp) spindle against 5.5 kW (7.4 HP) continuous
- 32 tools against 20 tools
- 1,000 mm table length against 800 mm
Roku-Roku HC-658
- 32,000 rpm spindle against 15,000 rpm, for small ball nose end mills
- 60 m/min (2,362 ipm) rapids on all axes against 40 m/min in X-Y and 32 m/min in Z
- 500 mm table depth against 460 mm
- HSK-E40 spindle aimed at graphite electrode and micro-detail work
Verdict
Buy the Roku-Roku HC-658 for graphite and copper electrodes and for finishing hardened mold cavities with small tools, where 32,000 rpm and 60 m/min (2,362 ipm) rapids do the work and 5.5 kW (7.4 HP) is enough. Buy the Okuma GENOS M460-VE for general vise and fixture-plate milling that needs cutting power: 22/18.5 kW (30/25 hp) through a BT40 spindle, 32 tools and a 1,000 × 460 mm (39.37 × 18.11 in) table.