Crankshaft Grinding Machine (MQ8260B)

Product Description
MQ8260B & MQ8260B/6 crankshaft are simple in construction, easy in operation and wide in application; Suitable for grinding crankshaft pins and journals. It can also be used as cylindrical grinder.
The machine is controlled by mechanical, electric and hydraulic means; Operated mainly by hand.
Left right chucks are crisscross and adjustable
Workpiece is held by centers or by chucks, driven by workhead motor, and feed by hand for grinding.
The worktable consists of upper and lower parts, and upper part having the inclined worktable-surface at 10° ( only for MQ8260B/6)
Longitudinal worktable travel is realized by manual-drive or motor-drive, with the motor drive for jump displacement or adjustment.
The max. Wheel, worktable, coolant pump and oil pump are driven by their individual motors.
Worktable and wheelhead have the hydraculic and electric interlocking mechanism, ensuring the safely even if misoperation whether in adjustment or in the process of Grinding. 
The wheelhead is equipped with the reliable protective guard, the coolant guard and the bed ways guard is stainless steel. The wheel balancing stand adopt new
Static wheel balancing stand.
 

Parameters
Model		MQ8260B/6×1600	MQ8260B×1600	MQ8260B/2000
Max. work diameter × Max. length		Φ 580× 1600 mm	Φ 580× 1600 mm	Φ 580× 2000 mm
Worktable		oblique angle table 10°	Flat worktable	Flat worktable
Capacity	Max. swing over table	Φ 580 m
	Work diameter ground with steady rest	Φ 30-100 mm
	Grinding cylindrical diameter	Φ 30-200 mm
	Throw of crankshaft	110 mm
	Max. work length ground in 3 jaw chuck	1300 mm	1300 mm	1700mm
	Max. work length ground between centers	1600 mm	1600 mm	2000mm
	Max. work weight	120 kg
Headstock	Center height	300 mm
	Work speed ( three steps )	25, 50, 100 r/min
wheelhead	Max. cross movement	200 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	760 rpm
	Wheel size	Φ 900× 32× Φ 305 mm / Φ  900× 22× Φ  305 mm
Overall capacity of motor		9.45 kw
Overall dimensions (L×W×H)		4000× 2100×1584 mm		4650x2100x1584mm
Packing dimensions (L×W× H)		4350× 2250×2000 mm		5000×2250×2000mm
Weight		6700 kg	6700kg	7200kg
Working accuracy	Ovality new standard	0.005mm
	Cylindricity	0.01mm
	Roughness	Ra 0.32