Machine Comparison
Index G220 vs Okuma MULTUS B200II
Index-Traub vs Okuma · Mill-Turn Machines
Summary
The Index G220 and the Okuma MULTUS B200II are both mill-turn machines for parts finished complete in one setup. The table lists a 600 mm (23.62 in) maximum turning diameter for the MULTUS B200II against 220 mm (8.66 in) on the G220, so on paper they sit in different size classes, although both are aimed at small, complex components.
The G220 has the stronger spindle, 20 / 24 kW against PREX 11/7.5 kW (15/10 hp). The MULTUS rapids faster on X and Z, 40 m/min against 30 m/min, with 26 m/min on its Y axis. Both spindles top out at 6,000 rpm. The MULTUS needs less floor space, 3,080 × 2,210 × 2,582 mm against 5355 × 2235 × 2400 mm for the G220.
Specifications Comparison
| Specification | Index G220 | Okuma MULTUS B200II |
|---|---|---|
| Max Turning Diameter | 220 mm (8.66 in) | 600 mm (23.62 in) ▲ |
| Max Spindle Speed | 6,000 rpm | 50~6,000 min⁻¹ [45~5,000 min⁻¹ optional] |
| Spindle Power | 20 / 24 kW (100%/40% duty) ▲ | PREX 11/7.5 kW (15/10 hp), 20 min/cont |
| Rapid Traverse | 30 m/min | 40/26 m/min (1,575/1,024 ipm), X,Z/Y ▲ |
| Floor Space | 5355 × 2235 × 2400 mm (L × W × H) | 3,080 × 2,210 × 2,582 mm (121.26 × 87.01 × 101.65 in); 3,620 × 2,210 × 2,582 mm (142.52 × 87.01 × 101.65 in) |
Advantages
Index G220
- 20 / 24 kW spindle against 11/7.5 kW (15/10 hp)
- Aimed at titanium, Inconel and hardened steel parts that would otherwise need several setups
Okuma MULTUS B200II
- 600 mm (23.62 in) listed maximum turning diameter against 220 mm (8.66 in)
- 40 m/min (1,575 ipm) X and Z rapids against 30 m/min
- 3,080 × 2,210 × 2,582 mm floor space against 5355 × 2235 × 2400 mm
Verdict
The table puts these machines in different size classes, so check part diameter first. Choose the Index G220 for complex aerospace and medical parts in titanium, Inconel and hardened steel, where its 20 / 24 kW spindle drives the cut and complete machining replaces several setups. Choose the Okuma MULTUS B200II for chuck-sized parts needing off-center holes, flats and pockets from its B-axis head, especially in shops with limited floor area taking on multitasking work for the first time.