Machine Comparison
Okuma MA-12500H vs Okuma MB-5000HII
Okuma vs Okuma · Horizontal Machining Centers
Summary
The Okuma MA-12500H and the Okuma MB-5000HII are both Okuma horizontal machining centers, but they serve different jobs. The Okuma MA-12500H carries a 1,250 × 1,250 mm (49.21 × 49.21 in) pallet for large prismatic parts. The Okuma MB-5000HII carries a 500 × 500 mm (19.69 × 19.69 in) pallet for housings, manifolds and tombstone production.
Okuma publishes few comparable figures for this pair. On the rows it does, the Okuma MB-5000HII is the faster mover, with 60 m/min rapids against 42 m/min (1,654 ipm). The Okuma MA-12500H has the larger magazine: 81 tools as standard, with 129 or 177 optional, against 48 on the Okuma MB-5000HII.
Specifications Comparison
| Specification | Okuma MA-12500H | Okuma MB-5000HII |
|---|---|---|
| Pallet Size | 1,250 × 1,250 mm (49.21 × 49.21 in) | 500 × 500 mm (19.69 × 19.69 in) |
| Tool Capacity | 81 [129, 177] | 48 |
| Rapid Traverse | 42 m/min (1,654 ipm) | 60 m/min ▲ |
Advantages
Okuma MA-12500H
- 1,250 × 1,250 mm (49.21 × 49.21 in) pallet against 500 × 500 mm (19.69 × 19.69 in)
- 81 tools as standard, with 129 or 177 optional, against 48
- Suited to heavy milling and boring of large prismatic parts
Okuma MB-5000HII
- 60 m/min rapids against 42 m/min (1,654 ipm)
- Suited to aluminum housings and manifolds and small-tool work
- Sized for tombstone production on a 500 × 500 mm pallet
Verdict
Choose by part size, not by the spec sheet. The Okuma MA-12500H is for large prismatic parts that need a 1,250 × 1,250 mm pallet, heavy milling and boring, and long operations that draw on 81 tools or more. The Okuma MB-5000HII is for aluminum housings, manifolds and tombstone work on a 500 × 500 mm pallet, where its 60 m/min rapids shorten cycles. A shop considering one is rarely considering the other.