Crankshaft Grinder MQ8260AX18 |
·Four different work speeds are obtainable by making use of a double - speed motor and the belts in workhead.
·Union chucks are used in the headstock and tailstock for adjusting eccentricity up to120 mm.
·Friction coupling is used in the headstock transmission chain for its easy adjustment.
·Table longitudinal traverse is operated either by hand or by power.
·Wheelhead rapid approach and withdrawal is effected by hydraulic means .
·Rolling guideways are used on wheelhead and made by high quality material . The wheel spindle being of80 mmin
diameter has good rigidity and strength.
·Plastic coated bed ways with less friction.
·The bed ways and wheelhead ways are lubricated in automatic cycle by means of oil pump.
·The digital display device can be optional.
Model | MQ8260Ax16 | MQ8260Ax18 | MQ8260Ax20 | ||||
Max. work diameter × Max. length | Φ580×1600mm | Φ580×1800mm | Φ580×2000mm | ||||
Capacity | Max. swing over table | 580 mm | |||||
Work diameter ground with steady rest | Φ30-100 mm | Φ50-120 mm | |||||
Throw of crankshaft | 110 mm | 120 mm | |||||
Max. work length ground in 3 jaw chuck | 1400 mm | 1600 mm | 1800 mm | ||||
M ax. work length ground between centres | 1600 mm | 1800 mm | 2000 mm | ||||
Max. work weight | 120 kg | 150 kg | |||||
Headstock | Centre heigt | 300 mm | |||||
Work speed (rpm | 25,45,95 | 25,45,65,100 | |||||
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 coast | 5.88 mm | |||||
Table traverse per turn of handwheel fine | 1.68 mm | ||||||
Table swivel (taper 18/100) | 5° | ||||||
Table swivel per grad of scale (taper 1:50) | 10’ | ||||||
Overall capacity of motor | 9.82 kw | 11.2 kw | |||||
Overall dimension (LxWxH) (mm) | 4166x2037x1584 | 4900x2037x1584 | |||||
Weight | 6000 kg | 6200 kg | 7000 kg | ||||
Working Accuracy | Ovality (new standard | 0.005 | |||||
Cylindricity | 0.01 | ||||||
Roughness Ra | 0.21 | ||||||
