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Crankshaft Grinding Machine

Feature:

1, The crankshaft grinder Model MQ8260A is the latest product modified on the base of the Model MQ8260 and intended for use in the automobile, tractor, diesel engine works and their repair shops to grind the journals and crankpins of crankshafts, but also for use in large engineering machinery and diesel engines for ships to grind crankshaft..

2, Three different work speeds are obtainable by making use of a double-speed motor and the belts in the headstock.

3, Union chucks are used in the headstock and tailstock for an adjustable eccentricity up to 110mm.

4, Friction coupling is used in the headstock transmission chain for its easy adjustment.

5, Table traverse is operated either by hand or by power.

6, Rolling guideways are used on wheelhead. And made by high quality material, the wheel spindle being of 80mm in diameter has good rigidity and strength.

7, The wheel spindle being of 80mm in diameter has good rigidity and strength.

8, Plastic coated bed ways with less friction.

9, The bed ways and wheelhead ways are lubricated in automatic cycle by means of oil pump.

10, Additional synchronizer for headstock and tailstock, i.e. the gears of headstock drive the tailstock to run in synchronism through the connecting spindle, thus. Four different speeds are obtainable. The length of works is ranged from 800mm to 2000mm.

11, The digital display device can be optional.


Specifications:

Specifications

Unit

MQ8260A

MQ8260B

MQ8260C

MQ8240A

Max work diameter*Max work length

mm

580*1600

580*1800

580*2000

400*750

Capacity

Max swing over table

mm

580

580

580

400

Workdiameter ground with steady rest

mm

30-100

30-100

50-120

20-110

Throw of crankshaft

mm

110

110

120

60

Max.work length ground :in 3-jaw chuck

mm

1800

1400

1400

630

Between centers

mm

1600

1800

2000

750

Max.work weight

kg

120

120

150

30

Head-stock

Centre height

mm

300

300

300

210

Work speed

rpm

25/45/95

25/45/95

25/45/65/100

40/80

Wheel head

Max cross movement

mm

185

185

185

150

Wheelhead rapid approach&withdrawal

mm

100

100

100

100

Wheelhead feed per turn of cross feed handwheel

mm

1

1

1

1

Wheel feed  per grad of cross feed handwheel

mm

0.005

0.005

0.005

0.005

Grinding wheel

Wheel spindle speed

rpm

740/890

740/890

740/890

890

Wheel peripheral speed

m/sec

25.6-35

25.6-35

25.6-35

25.6-30

Wheel size

mm

900*32*305

900*32*305

900*32*305

750*32*305

Table

Table traverse per turn of handwheel:coarst

mm

5.88

5.88

5.88

14

Table traverse per turn of handwheel:fine

mm

1.68

1.68

1.68

1.55

Table swivel(taper 18/100)

 

Table swivel pergrad of scal(taper1:50)

 

10'

10'

10'

10'

Overall capacity of motor

kw

9.82

9.82

11.12

6.92

Overall dimensions(L*W*H)

mm

4166*2037*1584

4166*2037*1584

4900*2037*1584

2860*1960*1650

Weight

Kg

6000

6200

7000

4800



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