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 |
|
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). |