Machine Comparison
Okuma MULTUS B200II vs Okuma MULTUS U5000
Okuma vs Okuma · Mill-Turn Machines
Summary
The Okuma MULTUS B200II and the Okuma MULTUS U5000 are both Okuma mill-turn machines, but the Okuma MULTUS U5000 is the heavier-duty of the two. It has a 37/30 kW (49/40 hp) spindle against 11/7.5 kW (15/10 hp), a 650 mm (25.59 in) maximum turning diameter against 600 mm (23.62 in), and 40 tools against 20 tools.
The Okuma MULTUS B200II is stronger on spindle speed, 6,000 rpm against 4,200 rpm, and has a Ø140 flat spindle nose where the Okuma MULTUS U5000 has JIS A2-8. The Okuma MULTUS U5000 also lists faster rapids: 1,968 ipm on Xa/Za and 1,574 ipm on Zb/Y, against 40 m/min (1,575 ipm) in X and Z and 26 m/min (1,024 ipm) in Y.
Specifications Comparison
| Specification | Okuma MULTUS B200II | Okuma MULTUS U5000 |
|---|---|---|
| Max Turning Diameter | 600 mm (23.62 in) | 650 mm (25.59 in) ▲ |
| Max Spindle Speed | 50~6,000 min⁻¹ [45~5,000 min⁻¹ optional] ▲ | 45–4,200 rpm (30–3,000 rpm) |
| Spindle Power | PREX 11/7.5 kW (15/10 hp), 20 min/cont | 37/30 kW (49/40 hp) ▲ |
| Spindle Taper / Nose | Ø140 flat [JIS A2-6] | JIS A2-8 [JIS A2-11] |
| Tool Capacity | 20 tools | 40 tools ▲ |
| Rapid Traverse | 40/26 m/min (1,575/1,024 ipm), X,Z/Y | Xa/Za 1,968 ipm; Zb/Y 1,574 ipm; Xb 980 ipm ▲ |
Advantages
Okuma MULTUS B200II
- 6,000 rpm top spindle speed against 4,200 rpm
- Suited to small shafts and bar parts that do not need a 37/30 kW (49/40 hp) spindle
Okuma MULTUS U5000
- 37/30 kW (49/40 hp) spindle power against 11/7.5 kW (15/10 hp)
- 40 tools against 20 tools
- 650 mm (25.59 in) maximum turning diameter against 600 mm (23.62 in)
- Rapids of 1,968 ipm on Xa/Za against 40 m/min (1,575 ipm) in X and Z
Verdict
Choose the Okuma MULTUS U5000 for heavy roughing and tough materials: it has more than three times the spindle power at 37/30 kW (49/40 hp), a JIS A2-8 spindle nose for larger chucking work, and 40 tools for multi-operation parts. Choose the Okuma MULTUS B200II for small shafts and bar parts turned and milled in one setup, where 6,000 rpm matters more than power and 20 tools are enough.