MQ8260A Crankshaft grinding machine
The crankshaft grinder model MQ8260A is modified on the basis 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.
Structure features:
Three different work speeds are obtainable by the use of the belts in the workhead.
Cross chucks are used in the headstock transmission chain for its easy adjustment.
Friction coupling is used in the headstock transmission chain for its easy adjustment.
Table traverse is operated either by hand or by power.
Wheelhead rapid approach and withdrawal is effected through hydraulic means.
The wheel spindle being of 80mm is diameter has good rigidity and strength.
Roller ways for wheelhead movement.
The bed ways and wheelhead ways are lubricated in an automatic cycle by means of the oil pump.
Additional vfor 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. The digital display device can be optional.
MQ8260A Crankshaft grinding machine
|
Specifications
|
Model
|
MQ8260Ax1600
|
MQ8260AX1800
|
MQ8260A×2000
|
|
Type
|
Φ580×1600
|
Φ580×1800
|
Φ580×2000
|
|
Max. work swing diameter
|
mm
|
Φ580
|
Φ580
|
Φ580
|
|
Max. work length
|
mm
|
1600
|
1800
|
2000
|
|
Capacity
|
1.Max.swing over table
|
mm
|
Φ580
|
Φ580
|
Φ580
|
|
Work diameter ground with steady rest
|
mm
|
Φ30-Φ100
|
Φ30-Φ100
|
Φ50-Φ120
|
|
Throw of crankshaft
|
mm
|
110
|
110
|
120
|
|
2.Max.work length ground: in 3 jaw
chuck
|
mm
|
1400
|
1600
|
1800
|
|
Between centers
|
mm
|
1600
|
1800
|
2000
|
|
3.Max.work weight
|
kg
|
120
|
120
|
150
|
|
Headstock
|
Center height
|
mm
|
300
|
300
|
300
|
|
Work speed
|
r/min
|
254595
|
254595
|
304565100
|
|
Wheel head
|
1.Max.cross movement
|
mm
|
185
|
185
|
185
|
|
2.Wheel head rapid approach &
withdrawal
|
mm
|
100
|
100
|
100
|
|
3.Wheel feed per turn of cross feed
handwheel
|
mm
|
1
|
1
|
1
|
|
Per grad of cross feed handwheel
|
mm
|
0.005
|
0.005
|
0.005
|
|
Grinding wheel
|
1.Wheel spindle speed
|
r/min
|
740,890
|
740,890
|
740,890
|
|
2.Wheel peripheral speed
|
m/sec
|
25.6-35
|
25.6-35
|
25.6-35
|
|
3.Wheel size(O.D x width x bore)
|
mm
|
Φ900×32(20)×Φ305
|
Φ900×32(20)×Φ305
|
Φ900×32(20)×Φ305
|
|
Table
|
1.Table traverse per turn of handwheel
|
Coarse
|
mm
|
5.88
|
5.88
|
5.88
|
|
Fine
|
mm
|
1.68
|
1.68
|
1.68
|
|
2.Table swivel(taper 18/100)
|
|
5‘
|
5‘
|
5‘
|
|
3.Table swivel per grad of scale(taper
1:50)
|
|
10‘
|
10‘
|
10‘
|
|
Overall capacity of motors
|
kw
|
9.82
|
9.82
|
11.12
|
|
Overall dimensions(L×W×H)
|
mm
|
4166×2037×1584
|
4166×2037×1584
|
4900×2037×1584
|
|
Weight
|
kg
|
6000
|
6200
|
7000
|
|
Working accuracy
|
Ovality (new standard)
|
mm
|
0.005
|
0.005
|
0.005
|
|
Cylindricity
|
mm
|
0.01
|
0.01
|
0.01
|
|
Roughness Ra
|
um
|
Ra0.32
|
Ra0.32
|
Ra0.32
|
MQ8260A Crankshaft grinding machine
Standard accessories:
Jaw chuck
Steady rest
Wheel balancing arbor
Leveling wedge
Wheel adaptor
Driving dog
Vertical aligning stand
Horizontal aligning stand
Optional accessories:
hanging measuring instrument
wheel balancing stand
centering device
end dresser
polisher
digital display for cross feed
MQ8260A Crankshaft grinding machine
The crankshaft grinder model MQ8260A is modified on the basis 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.
Structure features:
Three different work speeds are obtainable by the use of the belts in the workhead.
Cross chucks are used in the headstock transmission chain for its easy adjustment.
Friction coupling is used in the headstock transmission chain for its easy adjustment.
Table traverse is operated either by hand or by power.
Wheelhead rapid approach and withdrawal is effected through hydraulic means.
The wheel spindle being of 80mm is diameter has good rigidity and strength.
Roller ways for wheelhead movement.
The bed ways and wheelhead ways are lubricated in an automatic cycle by means of the oil pump.
Additional vfor 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. The digital display device can be optional.
MQ8260A Crankshaft grinding machine
|
Specifications
|
Model
|
MQ8260Ax1600
|
MQ8260AX1800
|
MQ8260A×2000
|
|
Type
|
Φ580×1600
|
Φ580×1800
|
Φ580×2000
|
|
Max. work swing diameter
|
mm
|
Φ580
|
Φ580
|
Φ580
|
|
Max. work length
|
mm
|
1600
|
1800
|
2000
|
|
Capacity
|
1.Max.swing over table
|
mm
|
Φ580
|
Φ580
|
Φ580
|
|
Work diameter ground with steady rest
|
mm
|
Φ30-Φ100
|
Φ30-Φ100
|
Φ50-Φ120
|
|
Throw of crankshaft
|
mm
|
110
|
110
|
120
|
|
2.Max.work length ground: in 3 jaw
chuck
|
mm
|
1400
|
1600
|
1800
|
|
Between centers
|
mm
|
1600
|
1800
|
2000
|
|
3.Max.work weight
|
kg
|
120
|
120
|
150
|
|
Headstock
|
Center height
|
mm
|
300
|
300
|
300
|
|
Work speed
|
r/min
|
254595
|
254595
|
304565100
|
|
Wheel head
|
1.Max.cross movement
|
mm
|
185
|
185
|
185
|
|
2.Wheel head rapid approach &
withdrawal
|
mm
|
100
|
100
|
100
|
|
3.Wheel feed per turn of cross feed
handwheel
|
mm
|
1
|
1
|
1
|
|
Per grad of cross feed handwheel
|
mm
|
0.005
|
0.005
|
0.005
|
|
Grinding wheel
|
1.Wheel spindle speed
|
r/min
|
740,890
|
740,890
|
740,890
|
|
2.Wheel peripheral speed
|
m/sec
|
25.6-35
|
25.6-35
|
25.6-35
|
|
3.Wheel size(O.D x width x bore)
|
mm
|
Φ900×32(20)×Φ305
|
Φ900×32(20)×Φ305
|
Φ900×32(20)×Φ305
|
|
Table
|
1.Table traverse per turn of handwheel
|
Coarse
|
mm
|
5.88
|
5.88
|
5.88
|
|
Fine
|
mm
|
1.68
|
1.68
|
1.68
|
|
2.Table swivel(taper 18/100)
|
|
5‘
|
5‘
|
5‘
|
|
3.Table swivel per grad of scale(taper
1:50)
|
|
10‘
|
10‘
|
10‘
|
|
Overall capacity of motors
|
kw
|
9.82
|
9.82
|
11.12
|
|
Overall dimensions(L×W×H)
|
mm
|
4166×2037×1584
|
4166×2037×1584
|
4900×2037×1584
|
|
Weight
|
kg
|
6000
|
6200
|
7000
|
|
Working accuracy
|
Ovality (new standard)
|
mm
|
0.005
|
0.005
|
0.005
|
|
Cylindricity
|
mm
|
0.01
|
0.01
|
0.01
|
|
Roughness Ra
|
um
|
Ra0.32
|
Ra0.32
|
Ra0.32
|
MQ8260A Crankshaft grinding machine
Standard accessories:
Jaw chuck
Steady rest
Wheel balancing arbor
Leveling wedge
Wheel adaptor
Driving dog
Vertical aligning stand
Horizontal aligning stand
Optional accessories:
hanging measuring instrument
wheel balancing stand
centering device
end dresser
polisher
digital display for cross feed
