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Crankshaft Grinder MQ8260

Short Description:

Crankshaft grinding machine MQ8260 Specifications Crankshaft Grinding Machine used in automobile, tractor, diesel engine works and their repair shops to grind the journals and crank pins crankshafts   1, the workpiece with the tip or chuck clamping, pretext, tailstock motor synchronous drive, manual grinding. 2, table longitudinal movement with manual or motorized two kinds of rotation. Motor driven by a motor, for jumping profile or adjustment, only one speed. 3, according to user needs...


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Product Tags

Crankshaft grinding machine MQ8260

Specifications

Crankshaft Grinding Machine used in automobile, tractor, diesel engine works and their repair shops to grind the journals and crank pins crankshafts

 

1, the workpiece with the tip or chuck clamping, pretext, tailstock motor synchronous drive, manual grinding.

2, table longitudinal movement with manual or motorized two kinds of rotation. Motor driven by a motor, for jumping profile or adjustment, only one speed.

3, according to user needs can be equipped with left and right cross chuck, maximum adjustable volume, the vertical direction is 110 mm, lateral 2.5 mm, the shift indexing simply rotate around the chuck.

4, wheel, bench, cooling pump, oil pump driven by a separate motor.

5, head, tail carriage motor are controlled by the inverter to achieve synchronous operation, reducing the deformation of the workpiece.

6, wheelhead rapid retreat is driven by hydraulic pressure.

7, moving machine table using plastic guide posts with the international advanced technology, the performance is more stable and reliable.

8, the table and the wheel hydraulic, electrical interlocking structure, in terms of adjustment due to operator error or grinding ensures safe operation.

Model

MQ8260x1600

Max. work diameter × Max. length of workpiece

Φ580×1600mm

Capacity

Max. swing over table

580 mm

Work diameter ground with steady rest

Φ30-100 mm

Throw of crankshaft

110 mm

Max. length of workpiece

1600mm

Max. work length ground in 3 jaw chuck

1500 mm

M ax. work length ground between centres

1600 mm

Max. work weight

120 kg

Headstock

Centre heigt

300 mm

Work speed (rpm/min)

25,50,100

Wheelhead

Max. cross movement

200 mm

Wheelhead rapid approach & withdrawal

100 mm

Wheelhead feed per turn of cross feed handwheel

1 mm

Wheel feed per grad of cross feed handwheel

0.005 mm

Grinding wheel

Wheel spindle speed

760 rpm

Wheel peripheral speed

25.6 – 35 m/sec

Wheel size

Φ900x32xΦ305 mm

Table

The maximum amount of longitudinal movement of the table

1600 mm

Table traverse per turn of handwheel fine

1.68 mm

Table swivel (taper 18/100)

Table swivel per grad of scale (taper 1:50)

10’

Overall capacity of motor

10.22 kw

Overall capacity of grinding wheel motor

7.5 kw

Overall dimension (LxWxH) (mm)

4000×2100×1630

Weight

6710 kg

Working

Accuracy

Ovality (new standard

0.005

Cylindricity

0.01

Roughness Ra

0.21

 

 

 

 

Crankshaft grinding machine MQ8260

MQ8260A crankshaft grinding machine is intended for use in automobile, tractor and diesel engine repairing shops to regrind the crankpins and journals of crandshafts. Wheelhead rapid approach and withdrawal is hydraulically effected, the worktable is operated approached either by hand or by power. Power table traverse, either left or right, is momentily actuated by depressing and releasing the electric push button in connection with the desired direction. This arrangement facilitates table spacing for the grinding of the next journal or crankpin.

1.Four different work speeds are obtainable by making use of a double - speed motor and the belts in workhead.

2.Union chucks are used in the headstock and tailstock for adjusting eccentricity up to 120 mm.

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

4.Table longitudinal traverse is operated either by hand or by power.

5.Wheelhead rapid approach and withdrawal is effected by hydraulic means .

6.Rolling guideways are used on wheelhead and made by high quality material . The wheel spindle being of 80 mm in

diameter has good rigidity and strength.

7.Plastic coated bed ways with less friction.

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

9.The digital display device can be optional.

Model

MQ8260Ax1600

MQ8260Ax1800

MQ8260Ax2000

Max. work diameter x Max. length

Φ600x1600 mm

Φ600x1800 mm

Φ600x2000 mm

Capacity

Max. swing over table

Φ600 m

Work diameter ground with steady rest

Φ30x100 mm

Φ50x120 mm

Throw of crankshaft

Φ110 mm

Φ120 mm

Max. work length ground in 3 jaw chuck

1400 mm

1600 mm

1800 mm

Max. work length ground between centers

1600 mm

1800 mm

2000 mm

Max. work weight

120 kg

150 kg

Headstock

Center height

300 mm

Work speed (rpm)

25,45,95

30,45,65,100

Wheelhead

Max. cross movement

185 mm

Wheelhead rapid approach & withdrawal

100 mm

Wheelhead feed per turn of cross feed handwheel

1 mm

Wheel feed per grad of cross feed handwheel

0.005 mm

Grinding wheel

Wheel spindle speed

740, 890 rpm

Wheel peripheral speed

25.6~35 m/sec

Wheel size

Φ900x32xΦ305 mm

Table

Table traverse per turn

of handwheel coarst

5.88 mm

Table traverse per turn

of handwheel fine

1.68 mm

Table swivel (taper

18/100)

Table swivel per grad of scale (taper 1:50)

10

Overall capacity of motor

9.82 kw

11.2 kw

Overall dimensions (LxWxH) (mm)

4166x2037x1584

4900x2037x1584

Packing dimensions (LxWxH) (mm)

4300x2200x2000

5300x2200x2000

Weight

6000 kg

6200 kg

7000 kg

Working

accuracy

Ovality new standard

0.005

Cylindricity

0.01

0.01

0.01

Roughness

Ra 0.32

Ra 0.32

Ra 0.32

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


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