Machine Comparison
Kuraki KBT-13A vs Kuraki KBT-15DX
Kuraki vs Kuraki · CNC Boring Machines
Summary
The Kuraki KBT-13A and Kuraki KBT-15DX are neighboring sizes in Kuraki's table-type boring machine range. Both carry a 15,000 kg (33,069 lb) table load, rapid at 8 m/min (315 IPM) and offer a 60-tool ATC option. The KBT-15DX adds travel: 3,000 x 2,200 x 2,000 mm against 2,500 x 2,000 x 1,500 mm.
The KBT-15DX also has the larger spindle motor, 37 kW (50 HP) against 30 kW (40 HP), and runs the Fanuc 31i-B5 against the 31i-B. The KBT-13A spins faster, 5 - 2,000 RPM against 5 - 1,600 RPM, and at 32,000 kg (70,548 lb) it weighs less than the 42,000 kg (92,594 lb) KBT-15DX.
Specifications Comparison
| Specification | Kuraki KBT-13A | Kuraki KBT-15DX |
|---|---|---|
| X-Axis Travel | 2,500 mm (98.4 in) | 3,000 mm (118.1 in) ▲ |
| Y-Axis Travel | 2,000 mm (78.7 in) | 2,200 mm (86.6 in) ▲ |
| Z-Axis Travel | 1,500 mm (59.1 in) | 2,000 mm (78.7 in) ▲ |
| Max Table / Workpiece Load | 15,000 kg (33,069 lb) | 15,000 kg (33,069 lb) |
| Max Spindle Speed | 5 - 2,000 RPM ▲ | 5 - 1,600 RPM |
| Spindle Power | 30 kW (40 HP) | 37 kW (50 HP) ▲ |
| Tool Capacity | 60-tool ATC (optional) | 60-tool ATC (optional) |
| Rapid Traverse | 8 m/min (315 IPM) | 8 m/min (315 IPM) |
| Control | Fanuc 31i-B | Fanuc 31i-B5 |
| Machine Weight | 32,000 kg (70,548 lb) | 42,000 kg (92,594 lb) |
Advantages
Kuraki KBT-13A
- Higher top spindle speed: 5 - 2,000 RPM against 5 - 1,600 RPM
- Lighter machine at 32,000 kg (70,548 lb) against 42,000 kg (92,594 lb)
Kuraki KBT-15DX
- 3,000 mm (118.1 in) X travel against 2,500 mm (98.4 in)
- 2,000 mm (78.7 in) Z travel against 1,500 mm (59.1 in), and 2,200 mm Y against 2,000 mm
- 37 kW (50 HP) spindle against 30 kW (40 HP)
Verdict
Both machines take the same 15,000 kg parts, so the choice comes down to reach and cutting power. Choose the Kuraki KBT-15DX for long castings, press frames and turbine casings that need 3,000 mm of X travel, 2,000 mm of Z and 37 kW at the spindle. Choose the Kuraki KBT-13A when parts fit within 2,500 mm and smaller bores benefit from its 2,000 RPM top speed.