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MQ8260Cx1600/1800 Crankshaft grinding machine
 


Mainf functions: MQ8260C is modified on the basis of the Model MQ8260A and intended for use in the automobiles tractors diesel engine works and their repair ships to grind the journals and crankpins of crankshafts.
Three different work speeds are obtainable by making use of the belts in the work head. The cover can be opened so that the belts can be changed conveniently.
Cross swallow-tailed chucks are selectively used in the headstock and tailstock
Friction coupling is used in the headstock transmission chain for its easy adjustment
Single layer table, with an oblique angle of 10 degree, longitudinal traverse can be operated either by hand or by power.
Wheel head rapid approach and withdrawal effected by hydraulic means can be digitally displayed at a resolution of 0.005mm
The wheel spindle being of 80mm in diameter has good rigidity and strength
The roller ways are for wheel head movement
The bed ways and wheel head ways are lubricated in an automatic cycle by means of the oil pump. Plastic coat is adhered to the bed way.
Air cushion can be used on the tailstock providing easy adjustment. Crosswise movement of tailstock is effected
Main Specification:

Model

MQ8260Cx1600

MQ8260Cx1800

Max. work diameter × Max. length

Φ580×1600 mm

Φ580×1800 mm

Capacity
 

Max. swing over table

Φ600 mm

Work diameter ground

Φ30 – Φ100 mm

Throw of crankshaft

110 mm

Max. work
length ground 

In 3-jaw chuck

1400 mm

Between center

1600 mm

Max. word weight

120 Kg

Workhead

Centre height

300 mm

Work speed (2 step)

25, 45, 95 r/min

Wheelhead 

Max. cross movement

185 mm

Wheelhead rapid approach and withdraw

100 mm

Wheel feed per turn of cross feed handwheel

1 mm

Per grad. Of cross feed hand wheel

0.005 mm

Grinding wheel

Wheel spindle speed

740, 890 r/min

Wheel spindle speed  

25.6 – 35 m/sec

Wheel size (O.D. × Bore)

Φ900 × 32 ×Φ305mm

Table  traverse per turn of handwheel

Coarse

5.88 mm

Fine

1.68 mm

Overall capacity of motors

9.82 kw

Overall dimensions (L×W×H)

4166 × 2037 × 1584mm

Weight

6000 kg

 

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