China Crankshaft Grinding Machine -Mq8260A

Crankshaft grinding machine-MQ8260A
This crankshaft grinding machine is intended for using in automobiles, tractors, Diesel engines and their repair shops to grind journals and crankpins of crankshafts.
MQ8260A is 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.
Features:
1.Three different work speeds are obtainable by making use of the belts in the workhead.
2.Cross chucks are used in the headstock and tailstock.
3.Friction coupling is used in the headstock transmission chain for its easy adjustment.
4.Table traverse is operated either by hand or by power.
5.Wheelhead rapid approach and withdrawal is effected through hydraulic means.
6.The wheel spindle being of 80mm in diameter has good rigidity and strength.
7.Use is made of roller ways for wheelhead movement.
8.The bed ways and wheelhead are lubricated in an automatic cycle by means of the oil pump.

ModelMQ8260Ax16MQ8260Ax18MQ8260Ax20Max. work diameter x Max. lengthΦ580x1600mmΦ580x1800mmΦ580x2000mmCapacity
Max. swing over table580 mm Work diameter ground with steady rest
Φ30-100 mmΦ50-120 mm Throw of crankshaft110 mm120 mm Max. work length ground in 3 jaw chuck1400 mm1600 mm1800 mm M ax. work length ground between centres1600 mm1800 mm2000 mm Max. work weight120 kg150 kgHeadstock
Centre height300 mm Work speed (rpm)25,45,9525,45,65,100Wheelhead
Max. cross movement185 mmWheelhead rapid approach & withdrawal100 mm Wheelhead feed per turn of cross feed handwheel1 mm Wheel feed per grad of cross feed handwheel0.005 mmGrinding wheel
Wheel spindle speed740, 890 rpmWheel peripheral speed25.6 - 35 m/secWheel sizeΦ900x32xΦ305 mmTable
Table traverse per turn of handwheel coast5.88 mmTable traverse per turn of handwheel fine1.68 mmTable swivel (taper 18/100)5°Table swivel per grad of scale (taper 1:50)10'Overall capacity of motor9.82 kw11.2 kwOverall dimension (LxWxH) (mm)4166x2037x15844900x2037x1584 Weight6000 kg6200 kg7000 kgWorking
Accuracy
Ovality (new standard0.005Cylindricity0.01Roughness Ra0.21
ional