Machine Comparison
Makino G5 vs Makino G7
Makino vs Makino · CNC Grinding Machines
Summary
The Makino G5 and Makino G7 are both from Makino's cnc grinding machines lineup, making this a common upgrade or lineup decision for shops already invested in the Makino ecosystem. The Makino G5 leads in max spindle speed (50,000 RPM vs 45,000 RPM). The Makino G7 leads in x travel (600 mm (23.6 in) vs 450 mm (17.7 in)). The Makino G7 leads in spindle power (11 kW (14.8 hp) vs 7.5 kW (10 hp)). The Makino G7 shows specification advantages in 6 categories, though the Makino G5 may still be the better choice depending on your shop's specific needs and the type of work you run. Both machines are proven performers in production environments and represent solid investments for shops in the market for a cnc grinding machine.
Specifications Comparison
| Specification | Makino G5 | Makino G7 |
|---|---|---|
| X-Axis Travel | 450 mm (17.7 in) | 600 mm (23.6 in) ▲ |
| Y-Axis Travel | 350 mm (13.8 in) | 450 mm (17.7 in) ▲ |
| Z-Axis Travel | 250 mm (9.8 in) | 350 mm (13.8 in) ▲ |
| Max Spindle Speed | 50,000 RPM ▲ | 45,000 RPM |
| Spindle Power | 7.5 kW (10 hp) | 11 kW (14.8 hp) ▲ |
| Rapid Traverse | 36 m/min (1,417 ipm) | 36 m/min (1,417 ipm) |
| Table Size | 300 x 250 mm (11.8 x 9.8 in) | 400 x 350 mm (15.7 x 13.8 in) ▲ |
| Accuracy | +/-0.001 mm | +/-0.001 mm |
| Machine Weight | ~6,000 kg (13,228 lb) ▲ | ~8,500 kg (18,739 lb) |
| Control | Makino Professional 6 (Pro 6) | Makino Professional 6 (Pro 6) |
| A Axis Range | +30° to -120° (150° total) | +30° to -120° (150° total) |
| C Axis Range | 360° (continuous) | 360° (continuous) |
| Spindle Taper | HSK-E32 | HSK-E40 |
| Table Load Capacity | 50 kg (110 lb) | 100 kg (220 lb) ▲ |
| Price Range | $300,000 - $420,000 ▲ | $380,000 - $520,000 |
Advantages
Makino G5
- Higher maximum spindle speed of 50,000 RPM enables faster cutting on aluminum and non-ferrous materials
- Lighter at ~6,000 kg (13,228 lb), potentially easier installation and lower foundation requirements
- More competitive pricing at $300,000 - $420,000 compared to $380,000 - $520,000
Makino G7
- Greater x travel of 600 mm (23.6 in) accommodates larger workpieces
- Greater y travel of 450 mm (17.7 in) accommodates larger workpieces
- Greater z travel of 350 mm (13.8 in) accommodates larger workpieces
- More spindle power at 11 kW (14.8 hp) for aggressive material removal in harder materials
- Superior table size at 400 x 350 mm (15.7 x 13.8 in) vs 300 x 250 mm (11.8 x 9.8 in)
Verdict
The Makino G7 edges ahead on specifications in this comparison, particularly in X Travel and Y Travel. However, the Makino G5 remains competitive and may be the better choice depending on price, dealer support in your area, or specific workholding and tooling considerations. Both are capable machines — the best decision comes from running your actual parts and evaluating total cost of ownership including tooling, training, and service.