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Palmary Extomax OCD-2040-3240-4240 CNC Cylindrical Grinders

Item #: Extomax OCD-2040-3240-4240 CNC Cylindrical Grinders

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Palmary OCD-2040-3240-4240 CNC Cylindrical Grinders

  • 1. Rigid Spindle Head
  • (1) The rigid constructed spindle head employs high precision bearings assuring maximum spindle stability.
  • (2) It guarantees outstanding accuracy for external and internal diameter grinding and face grinding.
  • (3) The spindle head on the OPTMUM series cylindrical grinder is driven by servomotor, providing variable speed change.
  • (4) The spindle head allows for swiveling positive 90° and negative 30°.
  • 2. Precision Wheel Spindle
  • (1) The grinding wheel spindle is precisely machined form high quality all oy steel (SNCM-220), normalized, tempered, carburized and sub-zero treated, precisely ground and mirror-effect treated. Hardness reaches to over HRC 62°. Non-deformation, maximum wear resistance and lifetime accuracy are assured.
  • 3. Wheel Spindle with Hydro-static Bearing Absolutely No Metal-to-Metal Contact
  • (1) Hybrid Palmary hydro-static Bearings are used for the wheel spindle bearings. Metal-to-metal contact will never occur with these highly rigid bearings which have a damping effect and make 0.5μm the new definition of wheel spindle rotational accuracy.
  • 4. Tailstock Lubrication System Simplifies Maintenance
  • (1)An automatic oil bath lubrication system has been provided for the tailstock to maintain high-level accuracy. An oil level gauge enables quick and sure oil level checks.
  • 5. Precision Wheel Head
  • (1) The grinding wheel spindle is precision machined from high quality alloy steel (SNCM-220), normal zed, tempered, carburized and subzero treated, precision ground and mirror-effect treated. Hardness reaches to over HRC 62°, No deformation, maximum wear resistance and lifetime accuracy are assured.

 

Controls: Fanuc

Specification Model

OCD-2040

OCD-3240

OCD-4240

Swing Over Table

Ø200 mm

Ø320 mm (Ø420 mm)

Ø320 mm (Ø420 mm)

Distance Between Centers

400 mm

400 mm

400 mm

Max. Grinding Diameter

Ø180 mm

Ø300 mm (400 mm)

Ø300 mm (400 mm)

Max. Load Held Between Centers

60 kg

150 kg

150 kg

Wheel

     

OD x Width x ID

Ø355 x 38 x Ø127 mm

Ø405 x 50 x Ø127 (Ø152.4) mm

Ø405 x 50 x Ø127 (Ø152.4) mm

Linear Velocity

30 m/s

30 m/s

30 m/s

Speed

2085 rpm

1783 rpm

1783 rpm

Rapid Feedrate

6 m/min

6 m/min

6 m/min

Wheelhead

     

Min. Input Increment

0.001 mm (0.0001 mm)

0.001 mm(0.0001 mm)

0.001 mm(0.0001 mm)

Internal Grinding

Manual Elevation

Manual Elevation

Manual Elevation

Table

     

Rapid Feedrate

6 m/min

6 m/min

6 m/min

Min. Input Increment

0.001 mm (0.0001 mm)

0.001 mm (0.0001 mm)

0.001 mm (0.0001 mm)

Swiveling Angle

-3°~10°

0° ~ 12°

0° ~ 12°

Workhead

     

Swiveling Angle

-30° ~ +90° deg

-30° ~ +90° deg

-30° ~ +90° deg

Center

MT. No. 3

MT. No. 4

MT. No. 4

Speed

10 - 300 rpm

10 - 300 rpm

10 - 300 rpm

Max. Load of Spindle(tool holder included)

15 kg (Max length : 100 mm)

35 kg (Max length : 150 mm)

35 kg (Max length : 150 mm)

Tailstock

     

Center

MT. No. 3

MT. No. 4

MT. No. 4

Tailstock Stroke

20 mm

25 mm

25 mm

Power Source (Fanuc System)

Power : 220V Cont. Cir.24VDC

Power : 220V Cont. Cir.24 VDC

Power : 220V Cont. Cir.24 VDC

Drive Motors

     

Wheel spindle

2.3(4P) kw

3.7 (4P) kw / (5.5 kw)

3.7 (4P) kw / (5.5 kw)

Work Spindle

0.75(4P) kw Freq. Invt.

0.8 kwAC Servo motor

0.8 kwAC Servo motor

Wheelhead Feed

1.2 kw(AC Servomotor)

1.2 kw(AC Servomotor)

1.2 kw(AC Servomotor)

Table Feed

1.2 kw(AC Servomotor)

1.8 kw(AC Servomotor)

1.8 kw(AC Servomotor)

Hydraulic Pump

0.75(6P) kw

0.75(6P) kw

0.75(6P) kw

Wheel Spindle Lubricant

0.18(2P) kw

0.18(2P) kw

0.18(2P) kw

Coolant Pump

0.18(4P) kw

0.18(4P) kw

0.18(4P) kw

Internal Grinding Wheel Spindle

0.375(2P) kw

0.75(2P) kw

0.75(2P) kw

Tank Capacities

     

Wheel Spindle Bearing Lubricant

12 L

18 L

18 L

Lubrication Oil Tank

60 L

60 L

60 L

Machine Weight

2350 kg

3200 kg

3400 kg

Standard Accessories:

1. Linear Scale (For x Axis)
2. Grinding Wheel and Grinding Wheel Flange (1 set)
3. Diamond Tool Holder (Table Mounted type) (1 pc)
4. Tools and Kits (1 set)
5. Carbide Tipped Work Centers (2 pcs)
6. Coolant equipment (1 set)
7. Hydraulic Tank With Oil Cooler (1 set)
8. Work Lamp (1 pc)

Optional Accessories:

1. Internal Grinding Attachment
2. Cam Locked Driving Dogs (6 pcs/set) 
3. Work Holder (2 pcs/set)
4. 2-point Steady Rest
5. Adjustable 3-point Steady Rest
6. Adjustable 3-jaw Scroll Chuck
7. Adjustable 4-jaw chuck
8. Magnetic Coolant Separator
9. Magnetic and Paper Filter
10. Automatic Grinding Wheel Balancer
11. Wheel Balancing Stand and Arbor
12. Touch Probe Gauge
13. Automatic In-process Gauge
14. Oil Mist Collector
15. Fully Enclosed Splash Guard
16. Spare Grinding Wheel and Grinding Wheel Flange
17. Hydraulic Tailstock
18. Ø80 Spindle Hole