MQ8260 series Crankshaft Grinding Machine
Crankshaft Grinding Machine used in automobile, tractor, diesel engine works and their repair shops to grind the journals and crank pins crankshafts
1, the workpiece with the tip or chuck clamping, pretext, tailstock motor synchronous drive, manual grinding.
2, table longitudinal movement with manual or motorized two kinds of rotation. Motor driven by a motor, for jumping profile or adjustment, only one speed.
3, according to user needs can be equipped with left and right cross chuck, maximum adjustable volume, the vertical direction is 110 mm, lateral 2.5 mm, the shift indexing simply rotate around the chuck.
4, wheel, bench, cooling pump, oil pump driven by a separate motor.
5, head, tail carriage motor are controlled by the inverter to achieve synchronous operation, reducing the deformation of the workpiece.
6, wheelhead rapid retreat is driven by hydraulic pressure.
7, moving machine table using plastic guide posts with the international advanced technology, the performance is more stable and reliable.
8, the table and the wheel hydraulic, electrical interlocking structure, in terms of adjustment due to operator error or grinding ensures safe operation.
Specifications:
| Model | MQ8260Ax16 | MQ8260Ax18 | MQ8260Ax20 | ||
| Max. work diameter Max. length | 580x1600mm | 580x1800mm | 580x2000mm | ||
| Capacity | Max. swing over table | 580 mm | |||
| Work diameter ground with steady rest | 30-100 mm | 50-120 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 centers | 1600 mm | 1800 mm | 2000 mm | ||
| Max. work weight | 120 kg | 150 kg | |||
| Head stock | Centre height | 300 mm | |||
| Work speed (rpm | 25,45,95 | 25,45,65,100 | |||
| Wheel head | Max. cross movement | 185 mm | |||
| Wheel head rapid approach & withdrawal | 100 mm | ||||
| Wheel head feed per turn of cross feed hand wheel | 1 mm | ||||
| Wheel feed per grad of cross feed hand wheel | 0.005 mm | ||||
| Grinding wheel | Wheel spindle speed | 740, 890 rpm | |||
| Wheel peripheral speed | 25.6 35 m/sec | ||||
| Wheel size | 900x32x305 mm | ||||
| Table | Table traverse per turn of hand wheel coast | 5.88 mm | |||
| Table traverse per turn of hand wheel 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 | ||
| WorkingAccuracy | Ovality (new standard) | 0.005 | |||
| Cylindricity | 0.01 | ||||
| Roughness Ra | 0.21 | ||||