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MQ8260C Crankshaft grinding machine

Features 
The crankshaft grinder model MQ8260C is modified on the basis of the Model MQ8260A and intended for use in the automobiles, tractors diesel engine works and their repaire shops to grind the journals and crankpins of crankshaft.
·Three different work speeds are obtainable by making use of the belts in the work head. The cover can be opened so that the belts can be changed conveniently.
·Cross swallow-tailed chucks are selectively used in the headstock and tailstock.
·Friction coupling is used in the headstock transmission chain for its easy adjustment.
·Single layer table, with an oblique angle of 10 degree, longitudinal traverse can be operated either by hand or by power.
·Wheel head rapid approach and withdrawal effeced by hydraulic means can be digitally displayed at a resolution of 0.005mm.
·The wheel spindle being of 80mm in diameter has good rigidity and strength
·The roller ways are for wheel head movement
·The bed ways and wheel head ways are lubricated in an automatic cycle by means of the oil pump.
·Plastic coat is adhered to the bed way.
·Air cushion can be used on the tailstock providing easy adjustment. Crosswise movement of tailstock is effected.
·          
·         Main specifications

Model
MQ8260C×1600
MQ8260C×1800
Max. work diameter × Max. length
Φ600×1600 mm
Φ600×1800 mm
Capacity
Max. swing over table
Φ600 m
Work diameter ground with steady rest
Φ30-100 mm
Throw of crankshaft
110 mm
Max. work length ground in 3 jaw chuck
1400 mm
1600 mm
Max. work length ground between centers
1600 mm
1800 mm
Max. work weight
120 kg
Headstock
Center height
300 mm
Work speed (rpm)
25,45,95
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
Φ900×32×Φ305 mm
Table
Table traverse per turn of handwheel coarse
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
Overall dimensions (L×W×H)
4166×2037×1584 mm
Packing dimensions (L×W×H)
4300×2200×2000 mm
Weight
6000 kg
6200 kg
Working accuracy
Ovality new standard
0.005
Cylindricity
0.01
Roughness
Ra 0.32
Ra 0.32

Standard Accessories
jaw chucks
wheel dresser
wheel balancing arbor
leveing wedge
driving dog
vertical aligning stand
horizontal aligning stand
wheel balancing stand
hanging measuring device
steady rest
centering device
grinding wheel

Optional Accessories
end dresser
digital readout
polisher
diamond dresser

 

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