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Heavy-duty circular grinders
 
   Heavy cylindrical grinding machines 3M193, 3M194, 3M195, 3M196, 3M197 and 3M198 are designed for external grinding of cylindrical surfaces and conical surfaces (except machine 3M198). They are used throughout a wide range of industries- metallurgical works, heavy and medium engineering works, ship-building yards, factories of the light and food industries. The machines are applicable for traverse and infeed hand grinding as well as for traverse grinding with automatic intermittent feed at reversal of the table.

По заказу станок может оснащаться электроприводами и электроаппаратурой, как отечественного производства, так и производства зарубежных фирм Siemens, Fagor, Heidenhain.

DESIGN FEATURES

   The steplessly variable control of the work speed and of the longitudinal and cross feed rates provides optimum grinding conditions.
   The steplessly variable control of the work speed and of the longitudinal and cross feed rates provides optimum grinding conditions.
   The grinding wheel spindle is supported in hydrodynamic plain bearings with non-circulating flow lubrication, which, due to the absence of wear of the bearings, provides the same grinding conditions at any surface speed.
   The ball bearing lead screw of the feed mechanism guarantees a high accuracy of the wheelhead travel to the intended size irrespective of the arising wheelhead external loads.
   The use of linear-motion antifriction bearings increases the responsiveness of the wheelhead and main sliding (lower) table to small movements thus providing a high repetition of positioning.
   The hydraulic equipment and electrical apparatus are located outside the machine which considerably reduces the effect of temperature strain and vibration on the finish accuracy.
   The two-stage coolant cleaning plant enables to increase the quality of grinding and prolongs the life of the coolant itself.
   The wheel vibration amplitude indicator enables to minimize quickly the wheel unbalance by means of a balancing device.
   The machines can be supplied complete with the fol-lowing truing devices: a diamond-point (or carbide disk) holder mounted on the tail stock for truing the wheel periphery and face, universal bench device for truing the wheel periphery and face at any angle, and an on-the-wheelhead automatic wheel truer.

SPECIFICATIONS
3М193
3М194
3М195
3М196
3М197
3М198
Max. work diameter, mm:
560
800
Max. work length, mm:
2800
4000
2800
4000
6000
8000
Max. mass of work, kg:
4000
10000
Grinding accurasy:
- max. lack of cylindrical shape (per 800 mm), mm
- out-of-roundness, mm
- roughness Ra, µm


0,010
0,003
0,32
Max. table-top swivel angle, deg:
- clockwise
- counterclockwise


0,30
6,0



3,0
Total power of motors, kW
43,11
47,5
Grinding weel dimensions, mm
750х100
Intermitten infeed, mm (per radius)
0,0025-0,03
Surface speed of grinding weel, m/s
50
Мощность двигателя привода круга, кВт:
30
Machine mass, kg
28270
32750
33930
36780
40830
43480
Machine overall plan view dimensions, mm - length
- width
- height

10540
4020
2455

13070
4020
2455

10780
4180
2455

13440
4180
2455

17400
4180
2455

21610
4180
2455
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