Machine Comparison
Okuma MA-12500H vs Okuma MA-4000H
Okuma vs Okuma · Horizontal Machining Centers
Summary
The Okuma MA-12500H and the Okuma MA-4000H 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 MA-4000H carries a 400 × 400 mm (15.7 × 15.7 in) pallet for small parts and tombstone fixtures.
Okuma publishes few comparable figures for this pair. On the rows it does, the Okuma MA-4000H is the faster mover, with 60 m/min (2,362 ipm) rapids against 42 m/min (1,654 ipm). The Okuma MA-12500H starts with the larger magazine, 81 tools against 48, but the Okuma MA-4000H has the longer options list, up to 340 tools against 177.
Specifications Comparison
| Specification | Okuma MA-12500H | Okuma MA-4000H |
|---|---|---|
| Pallet Size | 1,250 × 1,250 mm (49.21 × 49.21 in) | 400 × 400 mm (15.7 × 15.7 in) |
| Tool Capacity | 81 [129, 177] | 48 [64, 140, 180, 220, 260, 300, 340] |
| Rapid Traverse | 42 m/min (1,654 ipm) | 60 m/min (2,362 ipm) ▲ |
Advantages
Okuma MA-12500H
- 1,250 × 1,250 mm (49.21 × 49.21 in) pallet against 400 × 400 mm (15.7 × 15.7 in)
- 81 tools as standard against 48
- Suited to heavy milling and boring of large prismatic parts
Okuma MA-4000H
- 60 m/min (2,362 ipm) rapids against 42 m/min (1,654 ipm)
- Optional magazines up to 340 tools against up to 177
- Suited to high-mix production of small parts on tombstone fixtures
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 and heavy milling and boring. The Okuma MA-4000H is for small, short-cycle parts on a 400 × 400 mm pallet, where 60 m/min (2,362 ipm) rapids and optional magazines up to 340 tools support high-mix production. A shop considering one is rarely considering the other.