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PALMARY - OCD-4240

CNC Cylindrical Grinder

Features

These CNC cylindrical grinders are designed with high efficiency, high accuracy and maximum operational convenience in mind. The machine structure design fully meets ergonomic theorem for user-friendly operations. Rigid and stable construction, as well as a special wheel spindle design are combined with advanced CNC control to make cylindrical grinding easier and more accurate than ever before.

  • The rigid constructed spindle head employs high precision bearings assuring maximum spindle stability. It guarantees outstanding accuracy for external and internal diameter grinding (opt.) and face grinding.
  • The grinding wheel spindle is precisely machined from high quality alloy steel, normalized, tempered, carburized and sub-zero treated, precisely ground and mirror-effect treated. Non-deformation, maximum wear resistance and lifetime accuracy are assured.
  • To avoid vibration hybrid hydro-static bearings are used for the grinding wheel spindle. Metal-to-metal contact will never occur with these highly rigid bearings.
  • An automatic oil bath lubrication system has been provided for the tailstock to maintain high-level accuracy. An oil level gauge enables quick oil status check.

Palmary-Extomax OCD-CNC Series (2014.11 E 7th Ed).pdf
  Palmary OCD'Series Demo

Specifications: PALMARY - OCD-4240

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CAPACITY METRIC IMPERIAL
Distance between centres 400 mm 16"
Swing over table 420 mm 16.53"
Max load of centres 150 kg 330 lb
Max external grinding diameter 420 mm 16.53"
WHEEL HEAD
Rapid feedrate 6 M/min 236.22"/min
Min input increment 0.001 mm (*0.0001 mm) 0.0001" (*0.00001")
Internal grinding manual engagement manual engagement
GRINDING WHEEL
O.D. x width x I.D. ø405 x 50 to 75 x ø127 mm ø16 x 2 to 3 x ø5"
Speed (variable) 1783 rpm 1783 rpm
WORK SPINDLE HEAD
Swivel angle -30°, +90° -30°, +90°
Centre taper MT4 MT4
Spindle speeds (variable) 10 - 300 rpm 10 - 300 rpm
Max load of spindle (tool holder included) 35 kg (max length 150 mm) 77.15 lb (max length 5.90")
TAILSTOCK
Centre taper MT4 MT4
Stroke 25 mm 0.98"
TABLE
Swivel angle -2°, +12° -2°, +12°
Rapid feedrate 6 M/min 236.22"/min
Min input increment 0.001 mm (*0.0001 mm) 0.0001" (*0.00001")
MOTORS
Wheel spindle 5.5kW (4P) 7.5hp (4P)
Workhead spindle 0.8kW (AC Servo) 1.07hp (AC Servo)
Wheelhead feed 1.2kW (AC Servo) 1.60hp (AC Servo)
Table feed 1.8kW (AC Servo) 2.41hp (AC Servo)
Hydraulic pump 0.37kW (4P) 1/2hp (4P)
Wheel spindle lubrication pump 0.37kW (4P) 1/2hp (4P)
Coolant pump 0.18kW (2P) 1/4hp (2P)
*Internal grinding spindle *0.75kW (2P) *1hp (2P)
TANK CAPACITY
Wheel spindle lubrication tank 18 L 4.75 US gal
Hydraulic fluid tank 60 L 15.85 US gal
Coolant tank 120 L 31.7 US gal
GENERAL
Electrical approval CSA SPE-1000 CSA SPE-1000
Electrical rating 600V 15Amp 3ph 60Hz 600V 15Amp 3ph 60Hz
Voltage required 600V or 220V 600V or 220V
Weight 3500 kg 7716 lb
CONTROLLER
CNC Control FANUC FANUC
*Option
The manufacturer reserves the right to modify the design, specifications and/or colour of the machine without prior notice.

Standard Accessories

  • Linear scale for X Axis
  • Grinding wheel and flange (1 set)
  • Diamond tool holder table mount (1 pc)
  • Tool kit (1 set)
  • Carbide tipped work centres (2 pcs)
  • Coolant equipment
  • Hydraulic tank with pump
  • LED Work light

Included Accessories

  • 7" 3-jaw scroll chuck
  • Magnetic coolant separator with paper filter 80 L/min
  • Enclosed splash guard with safety door interlock switches
  • Transformer

Optional Accessories

  • Extra wheel flange and weights
  • Internal grinding attachment with one spindle and diamond tool holder
  • Cam locked driving dogs (6pcs/set)
  • Work steady rest (2pcs/set)
  • 2-point steady rest
  • 3-point steady rest
  • 8" 4-jaw chuck
  • Automatic grinding wheel balancer
  • Vibration meter for manual grinding wheel balancing
  • Wheel balancing stand with arbor
  • Gap control
  • Touch probe gauge
  • Automatic in-process gauge
  • Oil mist collector
  • Hydraulic tailstock
  • 80 mm Spindle hole
  • Linear scale for Z Axis
  • Disk type roller dresser
  • Profile disk roller dresser