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Cylindrical Grinding Machine

Specifications

TECHNICAL DETAILS
MODEL UNITS TMT 400/600/800 TMT 1000/1200
SIZE & CAPACITY
Centre height mm 130 155
Centre distance mm 600/800 1000/1200
Max. grinding dia for efficiently standard mm 125 125
WHEEL HEAD
Peripheral surface speed ( Two steps ) m/sec. 28 28
Clockwise deg. 60 60
Counter clockwise deg. 45 45
Grinding wheel (diameter x width x bore) mm 350 x 40 x 127 400 x 40 x 127
INFEED SYSTEM
Rapid Approach
mm
40
40
Increment infeed on dia
mm
0.005
0.005
Infeed with hand wheel
mm
60
60
* Infeed with hand wheel
mm
95
95
** Max. plunge depth on dia
mm
0.75
0.75
Infeed rate on dia varaible
mm/min
0.1 - 6
0.1 - 6
Spark off time
sec.
0 - 30
0 - 30
TABLE TRAVERSE
Max. Stroke
mm
650 - 850
1050 - 1250
Min stroke
mm
10
10
Feed rate
mm/min
30 - 4000
30 - 3500
Dwell at reversal
sec.
0 - 30
0 - 30
Swivel
deg.
-3 + 9
-3 + 6
* Feed rate in steps
6
6
WORK HEAD
 Live & dead centre type counter clockwise
deg.
90
90
Taper bore
M T
3
4
spindle speed 6 steps
RPM
45 - 250
45 - 250
** Steplessly variable 
RPM
30 - 500
30 - 500
TAIL STOCK
 Adjustable pressure, taper bore
M T
3
4
Quill travel
mm
25
25
 ELECTRICAL MOTORS
Wheel head
kw.
2.2
3.7
Work head
kw.
0.75

0.75

Internal grinding
kw.
0.75
0.75
Hydraulic pump motor
kw.
0.75
0.75
Coolant pump
kw.
0.10
0.10
Auto Lubrication (Hydraulic only)
kw.
0.09
0.09
* Table feed
kw.
0.37
0.37
INTERNAL GRINDING ATTACHMENT
Spindle housing bore
mm
80
80
Standard spindle dia
mm
60 x 250
60 x 250
Spindle speed standard
RPM
18000
18000
FLOOR AREA
Width
mm
1500
1500
Length
mm
3350 / 3750
4250 / 4650

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.
  • Assembly of precision bearings within dust free environment.
  • All rotating parts are dynamically balanced.
  • Table & wheel slide faced with anti-friction material TURCITE-B.
  • In mechanical model, only cross slide faced with TURCITE-B.
  • Independent lubrication system to the guideways of table and grinding wheel head.
  • Performance

    ROUNDNESS: Dead center < 0.003 mm. (cone centre ground and lapped)
    Live spindle < 0.004 mm (dia 75 mm hardened test piece).
    SURFACE FINISH : 0.3 μm Ra. ( using 60 grit wheel on hardened test piece)
    PARALLELISM: (Convex) 0.005 mm .( using 600 X 60 mm dia)
    ( With machine at constant ambient temperature 20 – 25° C and with grinding wheel and coolant suited to material being grounded).