Crankshaft Grinding Machine

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. 1.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. 2.Cross swallow-tailed chucks are selectively used in the headstock and tailstock. 3.Friction coupling is used in the headstock transmission chain for its easy adjustment. 4.Single layer table, with an oblique angle of 10 degree, longitudinal traverse can be operated either by hand or by power. 5.Wheel head rapid approach and withdrawal effeced by hydraulic means can be digitally displayed at a resolution of 0.005mm. 6.The wheel spindle being of 80mm in diameter has good rigidity and strength 7.The roller ways are for wheel head movement 8.The bed ways and wheel head ways are lubricated in an automatic cycle by means of the oil pump. 9.Plastic coat is adhered to the bed way. 10.Air cushion can be used on the tailstock providing easy adjustment. Crosswise movement of tailstock is effected. ModelMQ8260C×1600MQ8260C×1800Max. work diameter × Max. lengthΦ600×1600 mmΦ600×1800 mmCapacityMax. swing over tableΦ600 mWork diameter groundwith steady restΦ30×100 mmThrow of crankshaft110 mmMax. work length groundin 3 jaw chuck1400 mm1600 mmMax. work length groundbetween centers1600 mm1800 mmMax. work weight120 kgHeadstockCenter height300 mmWork speed (rpm)25,45,95wheelheadMax. cross movement185 mmWheelhead rapid approach & withdrawal100 mmWheelhead feed per turn of cross feed handwheel1 mmWheel feed per grad of cross feed handwheel0.005 mmGrinding wheelWheel spindle speed740, 890 rpmWheel peripheral speed25.6 35 m/secWheel sizeΦ900x32xΦ305 mmTableTable traverse per turn of handwheel coarst5.88 mmTable traverse per turn of handwheel fine1.68 mmTable swivel (taper 18/100)5°Table swivel per grad of scale (taper 1:50)10Overall capacity of motor9.82 kwOverall dimensions (LxWxH)4166x2037x1584 mmPacking dimensions (LxWxH)4300x2200x2000 mmWeight6000 kg6200 kgWorkingaccuracyOvality new standard0.005Cylindricity0.01RoughnessRa 0.32Ra 0.32