Machine Comparison
Makino a120nx vs Okuma MA-12500H
Makino vs Okuma · Horizontal Machining Centers
Summary
The Makino a120nx from Makino and Okuma MA-12500H from Okuma are direct competitors in the horizontal machining centers category. The Makino a120nx leads in max spindle speed (8,000 RPM vs 6,000 RPM). The Makino a120nx leads in tool capacity (100 tools standard (expandable) vs 81 tools). The Makino a120nx leads in spindle power (55 kW (73.7 hp) continuous vs 45/37 kW (20 min/continuous) (60/50 hp)). 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 | Makino a120nx | Okuma MA-12500H |
|---|---|---|
| Max Spindle Speed | 8,000 RPM ▲ | 6,000 RPM |
| Spindle Power | 55 kW (73.7 hp) continuous ▲ | 45/37 kW (20 min/continuous) (60/50 hp) |
| Tool Capacity | 100 tools standard (expandable) ▲ | 81 tools |
| Control | Makino Professional 6 (Pro 6) | Okuma OSP-P500M |
| Spindle Taper | HSK-A100 | No. 50 |
| Pallet Size | 1,250 x 1,250 mm (49.2 x 49.2 in) | 1,250 x 1,250 mm (49.2 x 49.2 in) |
| Price Range | $1,800,000 - $2,800,000 | $1,200,000 - $2,000,000 ▲ |
Advantages
Makino a120nx
- Higher maximum spindle speed of 8,000 RPM enables faster cutting on aluminum and non-ferrous materials
- More spindle power at 55 kW (73.7 hp) continuous for aggressive material removal in harder materials
- Larger tool magazine with 100 tools standard (expandable) capacity reduces manual tool changes on complex parts
Okuma MA-12500H
- More competitive pricing at $1,200,000 - $2,000,000 compared to $1,800,000 - $2,800,000
- Backed by Okuma's dealer and service network for parts and support
- Heavy equipment manufacturers machining large gear housings, machine bases, and structural weldments up to 2,000 mm diameter
Verdict
This is a close matchup. The Makino a120nx and Okuma MA-12500H 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.