Machine Comparison
Okuma MA-500HII vs Okuma MA-600HII
Okuma vs Okuma · Horizontal Machining Centers
Summary
The Okuma MA-500HII and Okuma MA-600HII are both from Okuma's horizontal machining centers lineup, making this a common upgrade or lineup decision for shops already invested in the Okuma ecosystem. The Okuma MA-600HII leads in tool capacity (60 tools standard (up to 194 optional) vs 40 tools). These machines are closely matched across most specifications, making the decision more about specific feature priorities, dealer support, and your existing shop ecosystem than raw spec advantages. Both machines are proven performers in production environments and represent solid investments for shops in the market for a horizontal machining center.
Specifications Comparison
| Specification | Okuma MA-500HII | Okuma MA-600HII |
|---|---|---|
| Max Spindle Speed | 6,000 RPM | 6,000 RPM (8,000 or 10,000 RPM optional) |
| Spindle Power | 30/22 kW (10 min/continuous) (40/30 hp) | 30 kW (40 hp); higher power options available |
| Tool Capacity | 40 tools | 60 tools standard (up to 194 optional) ▲ |
| Control | Okuma OSP-P500M | OSP-P300MA (OSP-P500 on MA-600HIII) |
| Pallet Size | 500 x 500 mm (19.7 x 19.7 in) | 630 x 630 mm (24.8 x 24.8 in) ▲ |
| Max Workpiece Size | ø800 x 1,000 mm (ø31.5 x 39.4 in) | Ø 1,050 x 1,200 mm (Ø 41.3 x 47.2 in) ▲ |
| Spindle Taper | No. 50 | No. 50 (CAT 50 / BT 50) |
| Price Range | $350,000 - $500,000 ▲ | $450,000 - $650,000 |
Advantages
Okuma MA-500HII
- More competitive pricing at $350,000 - $500,000 compared to $450,000 - $650,000
- Backed by Okuma's dealer and service network for parts and support
- Steel and cast iron production shops where No. 50 taper rigidity directly improves surface finish and tool life under heavy cutting loads
Okuma MA-600HII
- Larger tool magazine with 60 tools standard (up to 194 optional) capacity reduces manual tool changes on complex parts
- Superior pallet size at 630 x 630 mm (24.8 x 24.8 in) vs 500 x 500 mm (19.7 x 19.7 in)
- Superior max workpiece size at Ø 1,050 x 1,200 mm (Ø 41.3 x 47.2 in) vs ø800 x 1,000 mm (ø31.5 x 39.4 in)
Verdict
This is a close matchup. The Okuma MA-500HII and Okuma MA-600HII trade advantages across different specifications, making neither a clear winner on paper alone. Your decision should come down to practical factors: which dealer is closer, which control system your operators already know, what tooling ecosystem you're invested in, and which machine's specific strengths match your highest-volume work. Get quotes on both, run test cuts with your actual parts if possible, and factor in long-term service and support costs.