Machine Comparison
Makino a91nx vs Makino a92
Makino vs Makino · Horizontal Machining Centers
Summary
The Makino a91nx and Makino a92 are both from Makino's horizontal machining centers lineup, making this a common upgrade or lineup decision for shops already invested in the Makino ecosystem. The Makino a92 leads in x travel (1,300 mm (51.2 in) vs 1,050 mm (41.3 in)). 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 a91nx | Makino a92 |
|---|---|---|
| X-Axis Travel | 1,050 mm (41.3 in) | 1,300 mm (51.2 in) ▲ |
| Y-Axis Travel | 900 mm (35.4 in) | 1,100 mm (43.3 in) ▲ |
| Z-Axis Travel | 1,000 mm (39.4 in) | 1,100 mm (43.3 in) ▲ |
| Max Spindle Speed | 10,000 RPM | 10,000 RPM |
| Spindle Power | 45 kW (60.3 hp) continuous | 45 kW (60.3 hp) continuous |
| Spindle Torque | 750 Nm (553 ft-lb) | 800 Nm (590 ft-lb) ▲ |
| Tool Capacity | 80 tools standard (expandable) | 80 tools standard (expandable) |
| Rapid Traverse | 50 m/min (1,969 ipm) | 50 m/min (1,969 ipm) |
| Accuracy | ±0.003 mm (±0.00012 in) | ±0.003 mm (±0.00012 in) |
| Repeatability | ±0.0015 mm (±0.00006 in) | ±0.0015 mm (±0.00006 in) |
| Machine Weight | ~30,000 kg (66,139 lb) ▲ | ~35,000 kg (77,162 lb) |
| Control | Makino Professional 6 (Pro 6) | Makino Professional 6 (Pro 6) |
| Spindle Taper | HSK-A100 | HSK-A100 |
| Pallet Size | 1,000 x 1,000 mm (39.4 x 39.4 in) | 1,000 x 1,000 mm (39.4 x 39.4 in) |
| Price Range | $900,000 - $1,400,000 ▲ | $1,200,000 - $1,800,000 |
Advantages
Makino a91nx
- Lighter at ~30,000 kg (66,139 lb), potentially easier installation and lower foundation requirements
- More competitive pricing at $900,000 - $1,400,000 compared to $1,200,000 - $1,800,000
- Backed by Makino's dealer and service network for parts and support
- Heavy equipment manufacturers machining large cast iron and steel components for construction, mining, and agricultural machinery
Makino a92
- Greater x travel of 1,300 mm (51.2 in) accommodates larger workpieces
- Greater y travel of 1,100 mm (43.3 in) accommodates larger workpieces
- Greater z travel of 1,100 mm (43.3 in) accommodates larger workpieces
- Superior spindle torque at 800 Nm (590 ft-lb) vs 750 Nm (553 ft-lb)
Verdict
This is a close matchup. The Makino a91nx and Makino a92 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.