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CNC Plunge Angular Cylindrical Grinder

 


  • The wheel spindle is supported by 20kg/cm² high pressure oil at axial and radial direction.
  • This design eliminates contact-friction between metals without the need to replace parts. Outstanding features of the spindle include high rigidity, high accuracy, long service life, minimum vibration and low heat growth, etc.


Work Head - Maximum Rigidity! High precision!

  • The cartridge spindle is supported by 8 P4-class angular contact ball bearings and roller bearings at front and rear end. This assures outstanding machining stability and makes the machine ideal for heavy duty machining.
  • FANUC servo motor drive.
  • The spindle provides centering and synchronized motion functions. Fast interchange between center and chuck.
  • The work head permits 90¢X counter-clockwise swiveling and 30¢X clockwise, making the machine suitable for various grinding modes.


HYDRAULIC TAILSTOCK

  • The sleeve movement is hydraulically operated for convenient workpiece loading and unloading.
  • With foot pedal to control workpiece clamping and unclamping.
  • Workpiece clamping and unclamping force can be adjusted by burning a knob. The sleeve is precision machined from hardened alloy, featuring maximum wear resistance and rigidity.


ONE-PIECE FABRICATED BASE

    Deformation-free
  • The machine base is one-piece manufactured from Meehanite cast iron, tempered for maximum stability of material.
  • Box type base construction features superior stability and rigidity.
  • The base permits fast coolant exhaust, preventing thermal deformation from influencing machine accuracy.


WHEELHEAD FEEDING SADDLE

    Equipped with 0.0005mm Linear Scale for Feedback Control
  • The wheelhead moves on double "V" slideways.
  • Top slideway surfaces are coated with Turcite-B and precision scraped.
  • Equipped with high resolution 0.0005mm linear scale for close-loop feedback.


HYDRAULIC PRESSURE SENSOR

  • The pressure switch provides pressure sensing function. The spindle can't start until lubrication oil pressure reaches the setting value. In case hydraulic system is abnormal, spindle runnign stops.
  • When setting pressure, fast response can be achieved in case pressure error is within 5kg.


HIGH PRESSURE OIL SYSTEM

  • The high pressure oil system includes high pressure filter can, accumulator, pressure switch, check valve and throttle valve. Pressure can be adjusted in axial and radial direction.
  • In case power failure occurs, the accumulator may keep pressure for 5 minutes.


AUTOMATIC LUBRICATION SYSTEM

  • All moving and running parts are lubricated by automatic lubrication system.
  • The lubrication system is separately mounted from the machine to avoid mounted from the machine to avoid vibration and facilitate heat dissipation.


Specifications

ITEM
CNC PLUNGE
CNC ANGULAR
JHP-3506CNC
JHP-4006CNC
JHP-3510CNC
JHP-4010CNC
JHA-3505CNC
JHA-4005CNC
JHA-3508CNC
JHA-4008CNC
Capacity
Max. work swing
Φ350mm
Φ400mm
Φ350mm
Φ400mm
Φ350mm
Φ400mm
Φ350mm
Φ400mm
Max. grinding length
620 mm
1020 mm
520 mm
820 mm
Max. grinding dia.
Φ330mm
Φ380mm
Φ330mm
Φ380mm
Φ330mm
Φ380mm
Φ330mm
Φ380mm
Max. job weight
150kg
150kg
Distance between centers
600 mm
1000 mm
600 mm
1000 mm
Center height
175 mm
200 mm
175 mm
200 mm
175 mm
200 mm
175 mm
200 mm
Grinding wheel
Grinding wheel sizes
Φ510x50 ~ 100xΦ203.2
Φ600x50 ~ 100xΦ203.2
Grinding wheel speed
1250 rpm
1050 rpm
Max. peripheral speed
33 m/sec
33 m/sec
Wheel head
Feed angle
90°
60°
Swivel angle
±0°
±0°
±0°
±0°
Rapid traverse speed
6 m/min
6 m/min
Max. travel
280 mm
280 mm
Min. setting unit
0.001 mm
0.001 mm
Grinding feed rate
0.001 ~ 6000 mm/min
0.001 ~ 6000 mm/min
Hydrostatic pressure
20 kg
20 kg
Tailstock
Retraction of sleeve
30 mm
30 mm
Sleeve diameter
D: 70 mm
D: 70 mm
Center taper
NO#4 (Opt. NO.#5)
NO#4 (Opt. NO.#5)
Hydraulic cylinder pressure
20 kg
20 kg
Wrok head
Spindle speed (variable)
10 ~ 500 rpm/min
10 ~ 500 rpm/min
Center taper
NO#4 (Opt. NO.#5)
NO#4 (Opt. NO.#5)
Spindle type
Short type
Short type
Swivel angle
120 (90CCW ; 30CW)
120 (90CCW ; 30CW)
Work table
Swivel angle (C.W.)
+9
+7
+9
+7
Swivel angle (C.C.W.)
-5
-4
-5
-4
Rapid traverse speed
10 mm/min
10 mm/min
Min. setting unit
0.001 mm
0.001 mm
Max. travel
700 mm
1100 mm
600 mm
900 mm
Grinding feed rate
0.001 ~ 6000 mm/min
0.001 ~ 6000 mm/min
Motor
Grinding wheel spindle
7.5HP 4P (Opt. 10HP 4P)
10HP 4P (Opt. 15HP 4P)
Work head
1.5KW
1.5KW
Work table feeding (Z-axis)
1.8 KW
1.8 KW
Wheel table feeding (X-axis)
1.8 KW
1.8 KW
Hydraulic pump
1HP 4P
1HP 4P
Wheel head pump
2HP 4P
2HP 4P
Coolant pump
1/4HP 2P
1/4HP 2P
Magnetic coolant separator
1/25HP 2P
1/25HP 2P
Oil cooler
1HP 2P
1HP 2P
Oil tank
Hyd. Oil tank (slideways, screw ends & measurement)
60L
60L
Wheel head lubrication
50L
50L
Coolant tank
160L
160L
Machine
N.W. Fully enclosed
7460kg
8080kg
7460kg
8080kg
Semi enclosed
6840kg
7800kg
6840kg
7800kg
G.W. Fully enclosed
7860kg
8480kg
7860kg
8480kg
Semi enclosed
7240kg
8200kg
7240kg
8200kg
Machine dimensions (LxWxH) Fully enclosed
4110x2100x2000
4900x2100x2000
4110x2100x2000
4900x2100x2000
Semi enclosed
3300x2100x1850
4200x2100x1850
3300x2100x1850
4200x2100x1850
Packing dimensions (LxWxH) Fully enclosed
4290x2200x2200
5090x2200x2200
4290x2200x2200
5090x2200x2200
Semi enclosed
3480x2200x2100
4380x2200x2100
3480x2200x2100
4380x2200x2100


Standard Accessories

A. CNC control B. X-axis linear scale C. Hydraulic tailstock with manual movement
D.Grinding wheel and flange E. Tungsten carbide tipped centers F. Automatic lubrication system
G. High pressure oil system H. Diamond dresser/dressing device (for JHA series) I. Diamond dresser/dressing device (for JHP series)
J. Coolant tank and pump K. Leveling bolts and blocks L. Wheel lifting tool (for electric hoist)
M. Tool kits and toolbox. N. Magnetic coolant separator O. Touch probe gauge


Optional Accessories

A. 2-point steady rest B. 3-point steady rest C. Paper filter
D. SBS wheel balancing system E. Marposs cursh control device (gap control)
F. Marposs auto in-process gauge:8-90mm G. Marposs thickness measuring gauge: 8-90mm H. Center ring and drive plate
I. Work holder J. Wheel dressing device (lower table) K. Wheel lifting tool
L. Wheel balancing stand M. Wheel balancing arbor N. Fully endosed splash guard & Oil mist device
O. Oil cooler P. 6"/8" 3-jaw scroll chuck Q. Dressing device (tailstock)