Crankshaft Grinding Machine for Repair Shops

• After-sales Service: 1 Year
• Warranty: 1 Year
• Type: Special Purpose Grinding Machine
• Processing Object: Crank Shaft
• Abrasives: Grinding Wheel
• Controlling Mode: Artificial
• Model NO.: MQ8260Ax16
• Automatic Grade: Automatic
• Cylindrical Grinder Type: Universal Cylindrical Grinder
• Precision: Precision
• Certification: CE, ISO 9001
• Condition: New
• Max. Work Swing Dia. X Max. Length: 580X1600 mm
• Max. Work Length Ground: in 3-Jaw Chuck: 1400 mm
• Max. Work Length Ground: Between Centers: 1600 mm
• Machine Dimensions (Lxwxh): 4166X2037X1584 mm
• Machine Weight: 6000 Kg
• Transport Package: Wooden Box
• Specification: 4166x2037x1584 mm
• Trademark: TIMEWAY
• Origin: China
• Production Capacity: 100 Sets

Product Description

 Crankshaft Grinding Machine
MQ8260Ax16 &MQ8260Ax18 & MQ8260Ax20

    The crankshaft grinding machine is used in automobile, tractor, diesel engine works and their repair shops to grind the journals and crankpins of crankshaft, also used in large engineering machinery and diesel engines for ships to grind crankshaft.
   Flexible belt drive for speed change three steps speeds of work spindle (Mq8260x20); Four different work speeds are obtainable by making use of double-speed motor & the belts in work head (MQ8260Ax16, MQ8260Ax18).
   Union chuck are used in the headstock and tailstock for adjusting eccentricity up to 120mm.
   Friction coupling is used in the headstock transmission chain for its easy adjustment.
   Table longitudinal traverse is operated either by hand or by power.
   The bed ways & wheel-head ways are lubricated in automatic cycle by means of oil pump.
   Plastic coated bed ways with less friction.
   The digital display device can be optional.
   Wheel-head rapid approach and withdraw is effected by hydraulic device.
   Rolling guideways are used on wheel-head and made by high quality material. The wheel spindle being of 80mm in diameter has good rigidity and strength.

Technical Parameter

Specification	Unit	MQ8260Ax16	MQ8260Ax18	MQ8260Ax20
Max. work swing dia. x Max. length	mm	580x1600	580x1800	580x2000
Max. swing diameter over table	mm	580	580	580
Work dia. ground with steady rest	mm	30-100	30-100	50-120
Throw of crankshaft	mm	110	110	120
Max. work length ground: in 3-jaw chuck	mm	1400	1600	1800
Max. work length ground: between centers	mm	1600	1800	2000
Max. work weight	kg	120	120	150
Center height	mm	300	300	300
Work speed	rpm	25, 45, 95	25, 45, 95	30, 45, 65, 100
Max. cross movement	mm	185	185	185
Wheel-head rapid approach & withdrawal	mm	100	100	100
Wheel feed per turn of cross feed handwheel	mm	1	1	1
Per grad of cross feed handwheel	mm	0.005	0.005	0.005
Wheel spindle speed	rpm	740, 890	740, 890	740, 890
Wheel peripheral speed	m/s	25.6-35	25.6-35	25.6-35
Grinding wheel size	mm	900x32x305	900x32x305	900x32x305
Table travel per turn of handwheel coarse	mm/r	5.88	5.88	5.88
Table travel per turn of handwheel fine	mm/r	1.68	1.68	1.68
Table swivel (taper 18/100)	°	5°, taper 9/100	5°, taper 9/100	5°, taper 9/100
Table swivel per grad of scale(taper 1:50)	°	1°, taper 1/100	1°, taper 1/100	1°, taper 1/100
Overall capacity of motors	kw	9.82	9.82	11.12
Machine dimensions (LxWxH)	mm	4166x2037x1584	4166x2037x1584	4900x2037x1584
Machine weight	kg	6000	6200	7000
Ovality (new standard)	mm	0.005	0.005	0.005
Cylindricity	mm	0.008	0.01	0.01
Roughness (external)	um	Ra0.32	Ra0.32	Ra0.32
Roughness (end)	um	Ra0.63	Ra0.63	Ra0.63

Accessories:
Standard accessories:
3-jaw chuck
Wheel adapter
Grinding wheels & wheel extractor
Steady rest
Driving dog
Wheel dresser
Wheel balancing arbor
Vertical aligning stand
Horizontal aligning stand
Optional accessories:
End dresser
Diamond pen
Digital indicator
Centering device
Wheel balancing stand
Hanging measuring device