Machine Comparison
Citizen Miyano BND-51SY vs Citizen Miyano BNE-42
Citizen Machinery vs Citizen Machinery · Mill-Turn Machines
Summary
The Citizen Miyano BND-51SY and BNE-42 are listed in different categories and fit different parts. The BND-51SY is a mid-size mill-turn machine for 51 mm (2.0 in) bar and shaft-type parts up to 320 mm (12.60 in) long. The BNE-42 is a smaller 42 mm (1.65 in) turning center aimed at done-in-one processing of small cross-drilled parts. Both run Mitsubishi controls and 20 m/min rapids.
The BND-51SY has the size and power: 320 mm of turning length against 100 mm (3.94 in), and a 15/11 kW (20/15 hp) spindle against 7.5 kW (10 hp). The BNE-42 is faster throughout, with 6,000 RPM on the main spindle, sub-spindle and live tools against 5,000 RPM on each.
Specifications Comparison
| Specification | Citizen Miyano BND-51SY | Citizen Miyano BNE-42 |
|---|---|---|
| Max Turning Length | 320 mm (12.60 in) ▲ | 100 mm (3.94 in) |
| Bar Capacity | 51 mm (2.0 in) ▲ | 42 mm (1.65 in) |
| Max Spindle Speed | 50 - 5,000 RPM | 6,000 RPM ▲ |
| Spindle Power | 15/11 kW (20/15 hp) ▲ | 7.5 kW (10 hp) |
| Sub-Spindle Speed | 5,000 RPM | 6,000 RPM ▲ |
| Live Tool Speed | 5,000 RPM | 6,000 RPM ▲ |
| Rapid Traverse | 20 m/min (787 ipm) | 20 m/min |
| Control | Mitsubishi CNC | Mitsubishi M80 (Citizen Miyano) |
Advantages
Citizen Miyano BND-51SY
- 320 mm (12.60 in) turning length against 100 mm (3.94 in)
- 51 mm (2.0 in) bar capacity against 42 mm (1.65 in)
- 15/11 kW (20/15 hp) spindle against 7.5 kW (10 hp)
Citizen Miyano BNE-42
- 6,000 RPM main spindle against 5,000 RPM
- 6,000 RPM sub-spindle against 5,000 RPM
- 6,000 RPM live tools against 5,000 RPM
Verdict
Choose the BND-51SY for larger fittings, valve bodies and transmission shafts from bar up to 51 mm, where 320 mm of turning length and the higher-rated spindle matter. Choose the BNE-42 for small, feature-dense parts such as solenoid bodies, sensor housings, cartridge valves and medical instrument parts, where 6,000 RPM spindles and live tools suit small diameters and 100 mm of turning length is enough.