TECHNICAL DETAILS OF GST - 500 SERIES | |||||
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MODEL |
UNITS |
GST
-1500-2000-2500-3000
|
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SIZE & CAPACITY | |||||
Centre height |
mm |
250
|
|||
Centre distance |
mm |
1500 / 2000 / 2500 / 3000 |
|||
Max. grinding dia for efficiently grinding (Standard) |
mm |
300 |
|||
WHEEL HEAD | |||||
Peripheral surface speed ( Two steps ) |
m/sec. |
28 |
|||
Clockwise |
deg. |
30
|
|||
Counter clockwise |
deg. |
10 |
|||
Grinding wheel (dia x width x bore) |
mm |
500 x 63 x 254
|
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INFEED SYSTEM | |||||
Rapid Approach |
mm |
50
|
|||
Increment infeed on dia |
mm |
0.005 |
|||
Infeed with hand wheel |
mm |
50 |
|||
*PROGRAMMABLE Y-axis with INC system |
mm |
0.75 |
|||
* Max. plunge depth on dia |
mm |
0.75
|
|||
*Infeed rate on dia variable |
mm/min |
0.1 - 6
|
|||
*Spark off time |
sec. |
0 - 30
|
|||
*Incremental at each reversal |
mm |
0.003 - 0.015
|
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TABLE TRAVERSE | |||||
Max. Stroke |
mm |
1600 - 2100 - 2600 - 3100 |
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Min. stroke |
mm |
10
|
|||
Feed rate |
mm/min |
50 - 1500
|
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Dwell at reversal |
sec. |
0 - 30 |
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Swivel |
deg. |
-2 + 6
|
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WORK HEAD | |||||
Dead Centre Type counter clockwise |
deg. |
90
|
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Taper bore |
M T |
5
|
|||
Steplessly variable |
RPM |
20 - 100 |
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TAIL STOCK | |||||
Adjustable pressure, taper bore |
M T |
5 |
|||
Quill travel |
mm |
50
|
|||
ELECTRICAL MOTORS | |||||
Wheel head |
kw. |
7.5
|
|||
Work head |
kw. |
2.2
| |||
Internal grinding |
kw. |
0.75
|
|||
Hydraulic pump motor |
kw. |
0.75
|
|||
Coolant pump |
kw. |
0.10
|
|||
Auto Lubrication |
kw. |
0.09
|
|||
INTERNAL GRINDING ATTACHMENT | |||||
Spindle housing bore |
mm |
80
|
|||
Standard spindle dia |
mm |
60 x 250
|
|||
Spindle speed standard |
RPM |
18000
|
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FLOOR AREA | |||||
Width |
mm |
2000
|
|||
Length |
mm |
5700 - 6700 - 7700 - 8700 |
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*
OPTIONAL |
SPECIFICATIONS
& DESIGNS ARE SUBJECT TO CHANGE WITHOUT NOTICE. |
|
ROUNDNESS: | Dead center < 0.005 mm. (cone centre ground and lapped)
Live spindle < 0.005 mm (dia 75 mm hardened test piece) . |
SURFACE FINISH : | 0.5 μm Ra. ( using 60 grit wheel on hardened test piece) |
PARALLELISM | (convex) < 0.01mm ( using1000 X 70 mm dia)
( With machine at constant ambient temperature 20 – 25° C and with grinding wheel and coolant suited to material being grounded). |