Machine Comparison
Haas EC-500 Horizontal Machining Center vs Okuma MB-5000HII
Haas Automation vs Okuma · Horizontal Machining Centers (HMC)
Summary
The Haas EC-500 Horizontal Machining Center and the Okuma MB-5000HII are both horizontals built around a 500 × 500 mm pallet, and both are aimed at housings, manifolds and tombstone work. In the table the Okuma leads on nearly every row; the Haas leads on X travel.
The Okuma MB-5000HII runs to 15,000 rpm against 8,100 rpm, with 26 kW at the spindle against 30 hp (22.4 kW). It carries 48 tools against 30+1 and rapids at 60 m/min against 1,400 ipm (35.6 m/min). Its Y and Z travels are 760 mm (29.9 in) and 810 mm (31.9 in) against 25 in (635 mm) and 28 in (711 mm). The Haas offers 32 in (813 mm) of X against 760 mm (29.9 in).
Specifications Comparison
| Specification | Haas EC-500 Horizontal Machining Center | Okuma MB-5000HII |
|---|---|---|
| X-Axis Travel | 32 in (813 mm) ▲ | 760 mm (29.9 in) |
| Y-Axis Travel | 25 in (635 mm) | 760 mm (29.9 in) ▲ |
| Z-Axis Travel | 28 in (711 mm) | 810 mm (31.9 in) ▲ |
| Pallet Size | 19.69 × 19.69 in (500 × 500 mm) | 500 × 500 mm (19.69 × 19.69 in) |
| Max Spindle Speed | 8,100 rpm | 50–15,000 rpm (rpm) ▲ |
| Spindle Power | 30 hp (22.4 kW) | 26 kW ▲ |
| Tool Capacity | 30+1 | 48 ▲ |
| Rapid Traverse | 1,400 ipm (35.6 m/min) | 60 m/min ▲ |
Advantages
Haas EC-500 Horizontal Machining Center
- 32 in (813 mm) of X travel against 760 mm (29.9 in), for wide parts and fixtures
- Covers work that needs no more than 8,100 rpm and 30+1 tools; X travel is its only larger figure in the table
Okuma MB-5000HII
- 15,000 rpm spindle against 8,100 rpm, for small tools
- 48 tools against 30+1
- 60 m/min rapid traverse against 1,400 ipm (35.6 m/min)
- 760 mm (29.9 in) of Y and 810 mm (31.9 in) of Z against 25 in (635 mm) and 28 in (711 mm)
Verdict
On the published figures the Okuma MB-5000HII is the stronger production machine: 15,000 rpm for small tools in aluminum, 48 tools for tombstones that carry several part numbers, and 60 m/min rapids. The Haas EC-500 Horizontal Machining Center makes sense for a shop whose parts need the 32 in (813 mm) of X travel, or whose work runs comfortably at 8,100 rpm and does not need the larger magazine.