Mumbai, Maharashtra, India
Our Products
The MODEL 80 possesses high precision, quality and maintenance free design . It accommodated grinding of cylindrical, tapered and blind holes. It can be proved blessing for mass production industries, i.e. Antifriction Bearings, Tractors, Scooters, Automobiles, their spares and Defense etc. The technical characteristics as given below well tell the rest
MODE OF OPERATION
Fully automatic cycle with manual loading and unloading of the component .The grinding cycle is controlled with electro-hydraulic valve sequence . Any one of the following cycles can be chosen by the selector switch and a cam limit switch. The automatic cycle (Interval dressing , pre-dressing and skip dressing cycle) of the machine is as follows.
| By setting the counter value at 0004 , this cycle will be operated 4 times without dressing . More over any one of the above cycle can be selected to be operated once only with dressing. * CLEANING OF GRINDING WHEEL AT ONE SIDE (RIGHT TO LEFT) * * CLEANING OF GRINDING WHEEL BOTH THE SIDES (RIGHT TO LEFT & LEFT TO RIGHT) BASIC MACHINE FEATURES
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| DISTINCTIVE FEATURES OF MODEL 80 INTERNAL GRINDER
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| Maximum Grindable diameter | mm |
80 |
| Maximum Grindable diameter | mm |
04 |
| Maximum Grinding length at largest bore | Mm |
80 |
| Head Stock Swivel | deg. |
5` to 60` |
| Centre Height ( 0` - 5` head stock swivel) | mm |
200 |
| Center Height (0`-60` headstock swivel) | mm |
100 |
| Splash guard swing diameter | mm |
250 |
| Work hand spindle speed | mm |
380, 500, 650, |
| Table speed infinitely variable | mm |
0.5-6.0 |
| Maximum table travel | mm |
300 |
| Reciprocation stroke | mm |
4-80 |
| Maximum retraction | mm |
3 |
| Maximum feed stroke | mm |
O/R - 0.5 |
| Cross slide travel | mm |
50 |
| Power required (depending upon equipment) | Kw. |
6-12 |
| Approximate net weight | Kg. |
2500 |
| Air flow | L/min |
300 |
| 1st Cycle | 1. Rough grinding 4. Finish grinding |
2. Spark out 5. Spark out |
3. Dressing * |
| 2nd Cycle | 1. Rough grinding 4. Finish grinding |
1. Spark out 5. Spark out |
3. Dressing * * |
| 3rd Cycle | 1. Rough grinding 4. Rough Grinding 7. Finish grinding |
2. Spark out 5. Spark out 8. Spark out |
3. Dressing * 6. Dressing * |
| 4th Cycle | 1. Rough grinding 4. Rough grinding 7. Finish Grinding |
2. Spark out 5. Spark out 8. Spark out |
2. Dressing * * 6. Dressing * * |
| 5th Cycle | 1. Dressing 4. Spark out |
2. Rough Grinding | 3. Finish Grinding |
| 6th Cycle | SKIP – O Cycle ( Set the counter i.e. 0004) | ||
| 1. Rough Grinding | 2. Finish Grinding | 2. Spark out (No Dressing) |
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Pick from our wide range of cylindrical grinders. Each model is different to suit individual production need. For higher productivity and greater profit, it is essential you pick a machine suitable for you.
WorkheadThe work head spindle is made of nickel chrome EN-24 hardened and ground. It runs in gunmetal bush bearings. The drive to the workhead spindle which has MT-3, is by a step V pulley. The speed obtained through this pulley can be reduced by another bigger size pulley provided in the workhead housing. The workhead is built for grinding operation both with stationary centre and revolving spindle. Oil holes are provided for lubrication.
WheelheadThe rigid wheelhead spindle is made of nickel chrome steel EN-24 hardened and ground. It runs in white metal adjustable type bush bearings. The drive to the wheelhead is transmitted by two V-belts. Automatic wheelhead traverse in cross direction is on precision hand-scrapped V and flat guide ways, and is hydro-mechanical type. The spindle is tapered (5o) at the front to receive the wheel flange. Oil holes are provided for lubrication of the bearing surfaces. Rapid approach is available in U-127 series and it is up to 40 mm.
Tailstock
The tailstock travels smoothly all along the length of table right upto the workhead.
Hydraulic/Electrical System
All standard equipments are used in both system.
Swivel Table
Table is arranged to swivel for taper grinding. For fine connections to be applied by the screw adjustment.
nternal Grinding Attachment
The hinged type Internal Grinding Attachment with its independent motor is conveniently located on the wheelhead. It has fast grinding action and it can be quickly swung into a grinding position. The work piece can be externally and internally ground in one setting. Taper hole can be ground by swivelling either workhead or table.
There are so many standard and special accessories that can be added to the machine as per
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U |
U |
U |
U |
U |
U |
U |
U |
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General |
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| Max. dia. of swing(mm) |
200 |
254 |
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Max.distance bet. Centres(mm) |
450 |
600 |
500 |
625 |
750 |
1000 |
1250 |
1500 |
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Height of Centre(mm) |
100 |
127 |
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Table |
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| Min. mm/min |
400 |
---------- 400------------- -----------400----------------- |
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| Max. mm/min |
5000 |
-----------5000----------- ------------4000-------------- | ||||||
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Max. Swivel of table |
7o+2o=9o 6o+2o=8o |
7o+2o=9o 6o+2o=8o 6o+2o=8o 6o+2o=8o 5o+2o=7o 5o+2o=7o |
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Wheelhead and Wheel Feed |
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| Wheel dia. (mm) |
300 |
350 |
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| Grinding wheel width (mm) |
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| Grinding wheel bore (mm) |
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| Automatic Cross Feed of wheel at each left hand reversal of table (travel in 2 step) (mm) |
0.01 |
0.01 |
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| mm |
0.02 |
0.02 |
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| R.P.M of wheel spindle (rpm) |
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Workhead |
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| Speed of workhead (rpm) |
80-150-270 |
60-120-212-380 |
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| Morse taper in workhead spindle |
MT-3 |
MT-4 |
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| Swivel of workhead |
90o |
90o |
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| Morse taper of tailstock |
MT-2 |
MT-3 |
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Electric Motors |
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| Wheelhead motor (hp/rpm) |
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| Workhead motor (hp/rpm) |
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| Inter.grind.attachment motor (hp/rpm) |
1/2800 |
1/2800 |
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| Hydraulic pump motor (hp/rpm) |
1/1400 |
1/1400 |
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| Coolant pump motor (hp/rpm) |
0.15/2700 |
0.15/2700 |
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Weight and Dimensions |
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| Net weight of machine including elec. Motors (approx.) (kg) |
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| Packing case dimensions | ||||||||
| Length (mm) | 1825 2400 |
1830 2090 2590 3100 3200 3600 |
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| Width (mm) |
1000 |
1320 |
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| Height (mm) |
1275 |
158O 1580 1660 1660 1660 1660 |
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| Internal Grinding Attachment | ||||||||
| Spindle diameter (mm) |
60 |
60 |
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| Max. quill length (mm) |
70 |
70 |
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| Max. quill diameter (mm) |
18 |
18 |
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| Min. & Max. diameter of hole grinding (mm) |
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| Min. & Max. diameter of grinding wheel (mm) |
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| Spindle quill speed (rpm) |
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