Surface grinder

Okamoto OGM 250 UNCIII

Okamoto OGM 250 UNC III

Machine Characteristics:
- OKAMOTO touch-screen NC controller with advanced OKAMOTO software
- 2-axis interpolation
- Step (shoulder) automatic probe for setting starting reference and face grinding
- Automatic wheel dressing with automatic compensation
- Up to 21 programs can be stored
- 6 types of grinding cycles, up to 10 steps each
- 5 types of wheel dressing cycles
- Zero point measuring device and air gap measuring device (optional)
- Extremely rigid, stress-relieved cast iron bed construction
- Double V-type prismatic slideways, only OKAMOTO machines are manufactured this way (with unique hand-scraped surfaces)

Technical Data:
Capacity
- Max. swing diameter over table: Ø 220 mm
- Distance between centers: 500 mm
- Max. grindable diameter: Ø 200 mm
- Max. workpiece weight between centers: 50 kg
- Max. workpiece weight in chuck, gross: 20 kg
- Grinding wheel size for universal grinder: Ø305 mm x 50 mm x Ø127 mm
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- Max. peripheral speed (with inverter): 45 m/sec
- Wheel spindle X-travel: 215 mm
- Universal swiveling range: +/- 30°
- Diameter resolution: 0.0001 mm
- Rapid traverse in diameter: 4 m/min
- Table Z-travel: 762 mm
- Swivel angle: 0° ~ -9°
- Resolution: 0.0001 mm
- Rapid traverse: 8 m/min
- Workhead type: fixed and rotating centers, taper MK3
- Workhead bore diameter: Ø18 mm, speed 10 – 500 rpm
- Swivel angle - universal: 30°/ -90°
- Tailstock sleeve stroke: 20 mm, sleeve taper MK3
- Motors: Wheel 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
- Machine dimensions: length 3,400 mm, width 2,330 mm, height 1,950 mm
- Net weight: 3,300 kg

Standard grinding and wheel dressing software features:
- 10-step automatic grinding cycle
- Straight wheel dressing cycle
- Plunge oscillation grinding cycle
- Offset plunge (roughing) + cross-feed finishing grinding cycle
- Shoulder wheel dressing cycle for both left and right sides
- Profile wheel dressing cycle, programmable in ISO G-code
- Grinding cycle for workpiece shoulders, left and right sides

Standard Accessories:
- Grinding wheel Ø305x50xØ127 mm (UNC III), 1 pc
- 2 wheel arbors
- 3.7 kW spindle motor
- Max. grinding wheel peripheral speed: 45 m/sec
- Speed controller for workhead spindle
- FANUC 0i D CNC control (simultaneous 2-axis)
- 10.4" color OKAMOTO controller – vertical and cross-feed display
- Graphical teach software for creating grinding and dressing cycles
- Complete Fanuc push-button panel for ISO G-code programs with corner radius compensation
- Electronic handwheel (graduations: x1/x10/x100)
- Rapid traverse control lever (joystick) for cross and longitudinal directions
- Enclosed guard with safety interlocked sliding door
- LED machine lamp
- Automatic lubrication during operation
- Coolant nozzles and piping
- Coolant system for wheel dressing
- Permanent coolant installation to the table
- Carbide centers
- Step (shoulder) positioning device and software
- Gap sensor and software
- Leveling screws and base plates
- Tool kit
- Operating manual
- CE version
- Table rotation measuring device
- Coolant system with paper filter, DGS, 200 l
- Rinsing gun
- 2-point manual steady rest
- 130 mm manual chuck with backplate
- Motorized tailstock sleeve with foot pedal
- Status lamp (green/yellow/red)
- Balancing arbor
- Spare wheel arbor

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