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Roll Grinding Machine

Specifications

TECHNICAL DETAILS OF GST - 500 SERIES 
MODEL
UNITS
GST -1500-2000-2500-3000
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
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
TABLE TRAVERSE
Max. Stroke
mm
1600 - 2100 - 2600 - 3100
Min. stroke
mm
10
Feed rate
mm/min
50 - 1500
Dwell at reversal
sec.
0 - 30
Swivel
deg.
-2 + 6
WORK HEAD
Dead Centre Type counter clockwise
deg.
90
Taper bore
M T
5
Steplessly variable 
RPM
20 - 100
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
FLOOR AREA
Width
mm
2000
Length
mm
5700 - 6700 - 7700 - 8700
* OPTIONAL
SPECIFICATIONS & DESIGNS ARE SUBJECT TO CHANGE WITHOUT NOTICE.


Features

  • Casting are stress relieved by vibration “FORMULA 62” and in normalizing oven.
  • Tail stock, wheel & work spindles are heat treated to achieve dimensional stability.
  • Extremely high precision and maximum operational reliability is accomplished by     careful assembly of precision bearings within dust free environment.
  • Tailstock spindle acting in close tolerance & super finished bore.
  • All rotating parts are dynamically balanced.
  • Table & wheel slide faced with anti-friction material TURCITE-B.
  • Independent lubrication system to the guideways of table and cross slide wheel head.
  • Performance

    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).