Stable running
without noise can be achieved because of adopting screw pump in
hydraulic sysdem.
High rotating
precision and strong rigidity can be obtained by sleeve-type
whole-tile high precision moving hydraulic bare shaft system on the
spindle of wheel head.
Slideway is
covered by the plastic so it can gain slow speed running and high
immunity to vibration.
The machine has
high precision, reasonable integral l-ayout. beautiful shape.
Centeralized and imaginary
operating lever are easy and safe for operating.
PTBMGB (High
Precision semi-automatic) grinding machine can perform
semi-automatic precision cutting, longitudinal grinding to make high
precision parts by using limited stroke or controlled by process
gauge in small batch or mass production.
PTBMGB (High
Precision semi-automatic) all grinding function and sequences of
action during processing cycle are controlled by programmable
logical controller (PLC).
SPECIFICATION
MODEL Specification
PTMMG1320
PTMMGB1320
PTMMG1332
PTMMGB1332
PTMMG1420
PTMMGB1420
PTMMG1432
PTMMGB1432
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
240 (mm)
350 (mm)
240 (mm)
350 (mm)
Max. grinding length
(mm)
500 750 1000
500 750 1000
500 750 1000
500 750 1000
External grinding range
¦µ5~¦µ200(mm)
¦µ5~¦µ320(mm)
¦µ5~¦µ200(mm)
¦µ5~¦µ320(mm)
Internal grinding range
(mm)
--
--
¦µ13~¦µ80
¦µ16~¦µ125
Depth of internal
grinding (bigger than ¦µ45mm) (mm)
--
--
110
140
Max. weight of workpiece
between centers
50(kg)
100(kg)
50(kg)
100(kg)
Grinding wheel
Dimensions (outer
dianeter ¡Á width¡Á bore)
400¡Á(32~50)¡Á203 (mm)
Max. linear velocity
35 (m/sec)
Swivelling angle of
table
Clockwise
9¡ã 8¡ã 3¡ã
9¡ã 8¡ã 3¡ã
9¡ã 8¡ã 3¡ã
9¡ã 8¡ã 3¡ã
Counter-clockwise
9¡ã 8¡ã 7¡ã
9¡ã 8¡ã 7¡ã
9¡ã 8¡ã 7¡ã
9¡ã 8¡ã 7¡ã
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
PTMMG1320
PTMMGB1320
PTMMG1332
PTMMGB1332
PTMMG1420
PTMMGB1420
PTMMG1432
PTMMGB1432
500
750
1000
500
750
1000
500
750
1000
500
750
1000
P1
The grinding
accuracy of test piece between centers
L=350 d=75
circularity (mm)
0.001
0.001
-
0.001
0.001
-
0.001
0.001
-
0.001
0.001
-
L=750 d=75
-
-
0.002
-
-
0.002
-
-
0.002
-
-
0.002
l=350 d=35
Consistency of
diametr in longitudinal section (mm)
0.003
0.003
-
0.003
0.003
-
0.003
0.003
-
0.003
0.003
-
L=750 d=75
-
-
0.005
-
-
0.005
-
-
0.005
-
-
0.005
L=350 d=35
roughness (¦Ìm)
Ra¡Ü0.04 Ra¡Ü0.01
L=750 d=75
P2
The grinding
accuracy of short test Piece on chuck
¡¡
circularity (mm)
¡¡
¡¡
0.002
0.002
¡¡
roughness (¦Ìm)
¡¡
¡¡
Ra¡Ü0.04
Ra¡Ü0.04
P3
The accuracy of test
internal grinding on chuck
L=50 d=30
circularity (mm)
¡¡
¡¡
0.002
0.002
L=100 d=60
roughness (¦Ìm)
¡¡
¡¡
Ra¡Ü0.04
Ra¡Ü0.04
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
