Grinder Crankshaft Grinding Machine Automobile Industry

Product Description

Crankshaft Grinding Machine
MQ8260Cx16 & MQ8260Cx18 & MQ8260x30
The crankshaft grinding machine is used in automobile, tractor, diesel engine works and their repair shops to grind the journals and crank-pins of crankshaft, also used in large engineering machinery and diesel engines for ships to grind crankshaft.
* MQ8260Cx16, MQ8260Cx18
Work spindle speed adjustable between 3 speeds by simply changing belts.
Cross swallow tailed chucks used in workstock and tailstock.
Friction clutch used in the headstock transmission chain for easy adjustment.
Single layer table, with an oblique angle of 10 degree; table traverse operated both by hand and by power.
Rapid approach and withdrawal of wheel carriage effected by hydraulic means.
The wheel spindle being of 80mm in diameter has good rigidity and strength.
The rolling guideways employed for movement of wheel carriage.
Lubrication of table and wheel carriage operated automatically bu oil pump circulation.
* M8260x30
The machine mainly operated by hand.
Table traverse operated either by hand or by power; rapid approach & withdrawal of wheel carriage effected by hydraulic means.
Wheel spindle rotation controlled by a hydraulic & mechanical interlocking mechanism.
Workpiece rotation driven by servo motors controlled bu an electrical synchronous system.
The hydrostatic & dynamic wheel spindle driven by pulleys, equipped with separated oil system, separated lubrication device, special oil tank,and air cooling device as well.
Technical Parameter

Specification	Unit	MQ8260Cx16	MQ8260Cx18	MQ8260x30
Max. work swing dia. x Max. length	mm	600x1600	600x1800	600x3000
Max. swing diameter over table	mm	600	600	600
Work dia. ground with steady rest	mm	30-110	30-110	30-200
Throw of crankshaft	mm	110	110	120
Max. work length ground: in 3-jaw chuck	mm	1320	1520	2800
Max. work length ground: between centers	mm	1600	1800	3000
Max. work weight	kg	120	120	1000
Center height	mm	300	300	320
Work speed	rpm	25, 45, 95	25, 45, 95	25-95(stepless)
Max. cross movement	mm	185	185	185
Wheel-head rapid approach & withdrawal	mm	100	100	260
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	35
Grinding wheel size	mm	900x32x305	900x32x305	900x65x305
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
Overall capacity of motors	kw	9.82	9.82	35
Machine dimensions (LxWxH)	mm	4166x2037x1584	4166x2037x1584	9650x2400x1584
Machine weight	kg	6000	6500	14500
Ovality (new standard)	mm	0.005	0.005	0.005
Cylindricity	mm	0.01	0.01	0.012
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 acessories:
End dresser
Diamond pen
Digital indicator
Centering device
Wheel balancing stand
Hanging measuring device
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FAQ
Q: Why choose TIMEWAY MACHINE?
A: 1 . High quality with competitive price;
2 . Professional R&D team and 25 years export experience;
3 . Exported more than 60 countries;
4 . CE, ISO Certificates;
5 . 24 HOURS ONLINE SERVICE (SKYPE, WhatsApp, Wechat, Trademanager);
6 . 12 months quality warranty;
7 . Oversea engineers available for problem resolving;
Q: Do you have QC or any safety standards for your machinery?
A: yes, we have established a highly strict quality control department to guanrantee good quality.
Q: What's the MOQ?
A: 1 set (Only some low cost machines will be more than 1 set )
Q: What about the payment terms?
A: (1) T/T with 30% advanced payment, and 70% balance payment to be paid before shipment;
(2) Irrevocable LC at sight;
(3) Western Union, MoneyGram, etc.
Q: How about the warranty?
A: Warranty Period is one year after delivery. Even beyond the period, we will supply lifetime service for machine.