Machine Comparison
Doosan DNM 6700 vs Haas VF-4
Doosan Machine Tools vs Haas Automation · Vertical Machining Centers (VMC)
Summary
The Doosan DNM 6700 and the Haas VF-4 are vertical machining centers with the same length and height of travel: 1,300 mm (51 in) against 50 in (1,270 mm) of X, 625 mm (25 in) against 25 in (635 mm) of Z, and spindles of 8,000 rpm and 8,100 rpm. The difference is in the Y axis and in what the table carries.
The DNM 6700 has 670 mm (26 in) of Y travel against 20 in (508 mm), a 1,500 × 670 mm (59 × 26 in) table against 52 × 19.5 in (1,321 × 495 mm), and rapids of 36 m/min (1,417 ipm) against 1,000 ipm (25.4 m/min). The VF-4 carries more weight, 3,500 lb (1,588 kg) against 1,300 kg (2,866 lb), and has the higher spindle rating, 30 hp (22.4 kW) against 18.5 kW (25 hp).
Specifications Comparison
| Specification | Doosan DNM 6700 | Haas VF-4 |
|---|---|---|
| X-Axis Travel | 1,300 mm (51 in) ▲ | 50 in (1,270 mm) |
| Y-Axis Travel | 670 mm (26 in) ▲ | 20 in (508 mm) |
| Z-Axis Travel | 625 mm (25 in) | 25 in (635 mm) |
| Table Size | 1,500 × 670 mm (59 × 26 in) | 52 × 19.5 in (1,321 × 495 mm) |
| Max Table / Workpiece Load | 1,300 kg (2,866 lb) | 3,500 lb (1,588 kg) ▲ |
| Max Spindle Speed | 8,000 rpm | 8,100 rpm |
| Spindle Power | 18.5 kW (25 hp) | 30 hp (22.4 kW) ▲ |
| Spindle Torque | 117.8 N·m (87 ft-lb) | 90 ft-lbf @ 2,000 rpm (122 N·m @ 2,000 rpm) ▲ |
| Rapid Traverse | 36 m/min (1,417 ipm) ▲ | 1,000 ipm (25.4 m/min) |
| Machine Weight | 8,500 kg (18,739 lb) | 11,720 lb (5,316 kg) |
Advantages
Doosan DNM 6700
- 670 mm (26 in) of Y travel against 20 in (508 mm)
- 1,500 × 670 mm (59 × 26 in) table against 52 × 19.5 in (1,321 × 495 mm)
- 36 m/min (1,417 ipm) rapid traverse against 1,000 ipm (25.4 m/min)
Haas VF-4
- 3,500 lb (1,588 kg) table load against 1,300 kg (2,866 lb)
- 30 hp (22.4 kW) spindle power against 18.5 kW (25 hp)
Verdict
Choose the Doosan DNM 6700 for wide work: mold bases, plates and fixtures that need 670 mm (26 in) of Y travel and a 1,500 × 670 mm (59 × 26 in) table. Choose the Haas VF-4 for long, narrow parts and rows of vises that fit within 20 in (508 mm) of Y, for heavy setups up to 3,500 lb (1,588 kg), and for cuts that use its 30 hp (22.4 kW) spindle.