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Okamoto OGM 250 UNCIII

Okamoto OGM 250 UNC III

Machine Features:
- OKAMOTO touchscreen NC controller with advanced OKAMOTO software
- 2-axis interpolation
- Automatic step/probe for initial base measurement, face dressing
- Automatic wheel dressing with automatic compensation
- Up to 21 programs storable
- 6 types of grinding cycles, up to 10 steps
- 5 types of wheel dressing cycles
- Zero-point and air-gap measuring device (optional)
- Very rigid, stress-relieved cast iron bed structure
- Double-prismatic “V” slideways, unique to OKAMOTO machines (hand-scraped surfaces)

Technical Specifications:
Capacity
- Max. swing diameter over table: Ø 220 mm
- Distance between centers: 500 mm
- Max. grinding diameter: Ø 200 mm
- Max. workpiece weight between centers: 50 kg
- Max. workpiece weight in chuck (gross): 20 kg
- Grinding wheel size (universal grinder): Ø305 mm x 50 mm x Ø127 mm
- Max. peripheral speed: 45 m/sec (inverter driven)
- Wheel spindle "X" travel: 215 mm
- Universal swiveling: +/- 30°
- Resolution in diameter: 0.0001 mm
- Rapid traverse in diameter: 4 m/min

Table "Z" Travel
- Travel: 762 mm
- Swivel angle: 0° ~ -9°
- Resolution: 0.0001 mm
- Rapid traverse: 8 m/min
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Workhead type: can use fixed or rotating centers, taper MK3
- Workhead bore diameter: Ø18 mm
- Workhead speed: 10 ~ 500 rpm
- Workhead swivel angle (universal): 30°/ -90°
- Tailstock sleeve stroke: 20 mm
- Sleeve taper: MK3

Motors
- Grinding spindle: 3.7 kW
- Workhead AC servo: 1.8 kW
- Table feed AC servo: 1.2 kW
- Wheel feed AC servo: 1.2 kW
- Total power requirement: 15 kVA
- Space requirements (L x W x H): 3400 mm x 2330 mm x 1950 mm
- Machine weight (net): 3,300 kg

Standard Grinding and Wheel Dressing Software
- 10-step automatic grinding cycles
- Straight wheel dressing cycle
- Plunge oscillating grinding cycle
- Offset plunge (roughing) + finishing cross-feed cycle
- Shoulder wheel dressing cycle (left and right sides)
- Profiled wheel dressing cycle, programmable in ISO G code
- Grinding cycle for left and right shoulders of the workpiece

Standard Accessories
- Grinding wheel Ø305x50xØ127 mm (UNCIII) – 1 pc
- 2 wheel flange adapters
- 3.7 kW spindle motor
- Max. grinding wheel peripheral speed 45 m/sec
- Variable speed control for workhead
- FANUC 0i D CNC control (simultaneous 2-axis)
- 10.4" color OKAMOTO controller with vertical and cross direction display
- Graphical teaching software for grinding and wheel dressing cycle creation
- Complete Fanuc button panel for ISO G-code programs with corner radius compensation
- Electronic handwheel (increment: x1/x10/x100)
- Rapid traverse lever (joystick) for cross and longitudinal axes
- Fully enclosed guarding with interlocked sliding doors
- LED machine lamp
- Automatic lubrication during operation
- Coolant nozzles and piping
- Dresser coolant system
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- Permanent coolant installation to table
- Carbide centers
- Step positioner device and software
- Gap sensor and software
- Leveling bolts and pads
- Tool kit
- Operating manual
- CE conformity
- Table swivel measuring device
- Coolant system with paper filter, DGS, 200 l
- Washdown pistol
- Two-point manual steady rest
- 130 mm manual chuck with chuck plate
- Motorized tailstock sleeve with foot pedal
- Signal lamp (green/yellow/red)
- Balancing arbor
- Spare wheel adapter

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