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                          Cylindrical Grinding Machine GPE and GPBE Series

                          GPE and GPBE.jpg

                           

                           

                          Product Name: Universal Cylindrical Grinding Machine GPE and GPBE Series

                           

                          Performance:

                           

                          ·  High precision universal cylindrical grinding machine;

                          ·  High precise alignment of spindle head and solid support ensure ideal machining results with various grinding processes;

                          ·  Versatility due to table, headstock, and grinding headstock swivel;

                          ·  Wide speed range of workpiece spindle;

                          ·  Stable running without noise can be achieved because of adopting screw pump in hydraulic system;

                          ·  High rotating precision and strong rigidity can be obtained by sleeve-type whole-tile moving hydraulic bare shaft system on the spinlde of wheel head;

                          ·  Slideway is covered by the plastic so it can gain slow speed running and high immunity to vibration;

                          ·  The models with GPB can be perform high precision semi automatic cutting, longitudinal grinding to make high precision parts by using limited stroke or controlled by process gauge in small batch or mass production;

                          ·  For models with GPB, all grinding function and sequences of action during processing cycle are controlled by programmable logical controller (PLC);

                          ·  Quality by CE certificate for the grinding machine.

                           

                           

                          Standard Accessories:

                           

                          ·  Balancing arbor

                          ·  Balancing steady for grinding wheel

                          ·  3-jaw chuck  

                          ·  Internal grinding attachment

                          ·  Grinding wheel tray

                          ·  Coolant tank

                          ·  Stand grinding wheel dresser

                           

                           

                          Optional Accessories:

                           

                          ·  Close centre rest

                          ·  Open centre rest

                          ·  4-jaw chuck

                          ·  Automatic measure indicator (only for models with MGB)

                          ·  Paperty filter

                           

                           

                          Main Technical Data of the Grinding Machine:

                          Specification

                          Models

                          GP1320E

                          GP1332E

                          GP1420E

                          GP1432E

                          GPB1320E

                          GPB1332E

                          GPB1420E

                          GPB1432E

                          500, 750, 1000

                          500, 750, 1000

                          500, 750, 1000

                          500, 750, 1000

                          Center height (mm)

                          125

                          180

                          125

                          180

                          Max.length of workpiece between centers (mm)

                          520, 765, 1080

                          520, 765, 1080

                          520, 765, 1080

                          520, 765, 1080

                          Max.workpiece diameter for external (mm)

                          240

                          350

                          240

                          350

                          Max.grinding length (mm)

                          500, 750, 1000

                          500, 750, 1000

                          500, 750, 1000

                          500, 750, 1000

                          External grinding range (mm)

                          Φ5--Φ200

                          Φ5-Φ320

                          Φ5-Φ200

                          Φ5-Φ320

                          Internal grinding range (mm)

                          -

                          Φ13-Φ80

                          Φ16-Φ125

                          Depth of internal grinding (bigger than Φ45mm) (mm)

                          110

                          140

                          Max.weight of workpiece between centers (kg)

                          50

                          100

                          50

                          100

                          Grinding wheel

                          dimensions (mm)

                          (outerdiameter×width×bore) 400×(32-50)×203

                          max.linear velocity

                          35 m/sec

                          Swivelling angle of table

                          clockwise

                          9 , 8 , 3

                          9 , 8 , 3

                          9 , 8 , 3

                          9 , 8 , 3

                          counter-clockwise

                          9 , 8 , 7

                          9 , 8 , 7

                          9 , 8 , 7

                          9 , 8 , 7

                          Taper hole of spindle(Morse)

                          workhead

                          Morse 4#

                          tailstocd

                          Morse 3#

                          Total power (kw)

                          4.775

                          4.775

                          5.325

                          5.525

                          Net weight (kg)

                          2500,3000,3500

                          2500,3000,3500

                          2500,3000,3500

                          2500,3000,3500

                          Overall dimensions

                          L (mm)

                          2750,2870,3700

                          2750,2870,3700

                          2750,2870,3700

                          2750,2870,3700

                          W (mm)

                          2000

                          H (mm)

                          2100

                           

                           

                           

                          Working Accuracy:

                          NO

                          Inspection character

                          Test piece diagram and grinding condition

                          Inspection item

                          GP1320E

                          GP1332E

                          GP1420E

                          GP1432E

                           

                          GPB1320E

                          GPB1332E

                          GPB1420E

                          GPB1432E

                           

                          500,750

                          1000

                          500,750

                          1000

                          500,750

                          1000

                          500,750

                          1000

                           

                          P1

                          The grinding accuracy of test piece between centers

                          L=150 d=50

                          circularity (mm )

                          0.0005

                           
                           
                           

                          L=200 d=60

                           
                           

                          L=350 d=35

                          Consistencey of diametr in longitudinal section (mm)

                          0.003

                          0.003

                          0.003

                          -

                          0.003

                          -

                           

                          L=750 d=75

                          -

                          0.005

                          -

                          0.005

                          -

                          0.005

                          -

                          0.005

                           

                          L=150 d=50

                          roughnese (μm)

                          Ra≤0.01

                          Ra≤0.01

                          -

                           

                          L=200 d=60

                          -

                          Ra≤0.01

                          -

                          Ra≤0.01

                           

                          P2

                          The grinding accuracy of short test Piece on chuck

                           

                          circularity (mm)

                           

                          0.002

                           
                           
                           

                          roughnese (μm)

                           

                          Ra≤0.04

                           
                           

                          P3

                          The accuracy of test internal grinding on chuck

                          L=50 d=30

                          circularity (mm)

                           

                          0.002

                           
                           
                           

                          L=100 d=60

                          roughnese (μm)

                           

                          Ra≤0.04

                           
                           

                          P4

                          The accuracy for external grinding for Plunge-in test piece

                          L=30 d=25

                          Consistency of diametr in grinding a batch of spare parts (mm)

                          Fixed distance grinding: 0.01

                          Fixed distance grinding: 0.012

                          Fixed distance grinding: 0.01

                          Fixed distance grinding: 0.012

                           
                           
                           
                           

                          L=30 d=25

                          Automatic gauge: 0.004

                          Automatic gauge: 0.005

                          Automatic gauge: 0.004

                          Automatic gauge: 0.005

                           
                           

                           

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