Technical Specifications Summary for Okuma MCR-AF Machine Models 25 x 15 and 25 x 20

1. Machine Dimensions and Travel Ranges
- X-axis (spindle head horizontal travel): Not explicitly stated.
- Y-axis (table front/back travel): 1,500 mm (59.06 in.) for 25 x 15 model; 2,000 mm (78.74 in.) for 25 x 20 model.
- Z-axis (ram vertical travel): Not explicitly stated.
- Effective width between columns: Not specified.
- Table to spindle nose distance: Not specified.
- Working surface dimensions: 2,000 x 1,500 mm (78.74 x 59.06 in.) for 25 x 15; 2,000 x 2,000 mm (78.74 x 78.74 in.) for 25 x 20.

2. Load and Table Specifications
- Maximum load capacity: Not specified.
- T-slot width: Not specified.
- Height from floor to table: 850 mm (33.46 in.).

3. Spindle and Speed Details
- Spindle speed range: 1 to 10,000 min-1 (rpm), with options for 12,000, 16,000, and 25,000 min-1 spindles.
- Spindle taper bore:
- Standard: 7/24 taper No. 50
- Optional: 7/24 taper No. 40 (for 12,000 min-1 spindle), HSK-A63 (for 16,000 and 25,000 min-1 spindles).
- Rapid traverse rates (X/Y/Z): 20/20/10 m/min (787/787/394 ipm).

4. Tooling and Magazine
- Tool shank types: MAS BT50 standard; MAS BT40 and HSK-A63 optional.
- Tool magazine capacity: 24 tools (with configurations of 32, 2, or 3 tools in some cases).
- Maximum tool diameter:
- With adjacent tools: 125 mm (4.92 in.)
- Without adjacent tools: 230 mm (9.06 in.)
- Maximum tool length: Not specified.
- Pull stud: Standard, except no pull stud for 25,000 min-1 spindle specification.

5. Motor and Power
- Spindle drive power: 37 kW (50 hp) for 12,000 min-1 spindle; 26 kW (35 hp) for 22,000 min-1 spindle; 22 kW (30 hp) for 16,000 min-1 spindle; 15 kW (20.15 hp) for 25,000 min-1 spindle.

6. Physical Footprint and Weight
- Floor space required:
- 25 x 15 model: 5,600 x 4,180 mm (220.47 x 164.57 in.)
- 25 x 20 model: 5,600 x 5,230 mm (220.47 x 205.91 in.)
- Net weight:
- 25 x 15 model: 24,500 kg (54,000 lbs)
- 25 x 20 model: 26,000 kg (57,300 lbs)

7. Additional Notes
- The spindle speed options correspond to different spindle types and tooling interfaces.
- Rapid traverse and cutting feed rates are optimized for high-speed machining.
- The machine supports various tool shank standards to accommodate different tooling requirements.

Summary
This document provides detailed technical specifications for two Okuma MCR-AF machining center models, focusing on travel dimensions, spindle capabilities, tooling options, motor power, and physical footprint. Key parameters such as spindle speed ranges, tool magazine capacity, and rapid traverse rates highlight the machine's suitability for high-precision and high-speed machining applications. The data also indicates flexibility in tooling interfaces and spindle configurations to meet diverse manufacturing needs.