Crankshaft Grinding Machine

Crankshaft Grinding Machine
Model No. MQ8260A
Origin: China
Min. Order: Negotiable
MQ8260A crankshaft grinding machine is intended for use in automobile, tractor and diesel engine repairing shops to regrind the crankpins and journals of crandshafts. Wheelhead rapid approach and withdrawal is hydraulically effected, the worktable is operated approached either by hand or by power. Power table traverse, either left or right, is momentily actuated by depressing and releasing the electric push button in connection with the desired direction. This arrangement facilitates table spacing for the grinding of the next journal or crankpin.

·Four different work speeds are obtainable by making use of a double - speed motor and the belts in workhead.
·Union chucks are used in the headstock and tailstock for adjusting eccentricity up to 120 mm.
·Friction coupling is used in the headstock transmission chain for its easy adjustment.
·Table longitudinal traverse is operated either by hand or by power.
·Wheelhead rapid approach and withdrawal is effected by hydraulic means .
·Rolling guideways are used on wheelhead and made by high quality material . The wheel spindle being of 80 mm in diameter has good rigidity and strength.
·Plastic coated bed ways with less friction.
·The bed ways and wheelhead ways are lubricated in automatic cycle by means of oil pump.
·The digital display device can be optional.

Main specifications





Max. work diameter × Max. length

Φ600×1600 mm

Φ600×1800 mm

Φ600×2000 mm


Max. swing over table

Φ600 m

Work diameter ground with steady rest

Φ30×100 mm

Φ50×120 mm

Throw of crankshaft

Φ110 mm

Φ120 mm

Max. work length ground in 3 jaw chuck

1400 mm

1600 mm

1800 mm

Max. work length ground between centers

1600 mm

1800 mm

2000 mm

Max. work weight

120 kg

150 kg


Center height

300 mm

Work speed (rpm)




Max. cross movement

185 mm

Wheelhead rapid approach & withdrawal

100 mm

Wheelhead feed per guard of cross feed handwheel

1 mm

Wheel feed per guard of cross feed handwheel

0.005 mm

Grinding wheel

Wheel spindle speed

740, 890 rpm

Wheel peripheral speed

25.6~35 m/sec

Wheel size

Φ900×32×Φ305 mm


Table traverse per turn of handwheel coarse

5.88 mm

Table traverse per turn of handwheel fine

1.68 mm

Table swivel (taper 18/100)

Table swivel per grad of scale (taper 1:50)


Overall capacity of motor

9.82 Kw

11-12 Kw

Overall dimensions (L×W×H)

4166×2037×1584 mm

4900×2037×1584 mm

Packing dimensions (L×W×H)

4300×2200×2000 mm

5300×2200×2000 mm


6000 kg

6200 kg

7000 kg



Ovality new standard







Ra 0.32

Ra 0.32

Ra 0.32

Crankshaft grinding machine MQ8260A

Standard Accessories

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Tel: 0086-773-5609507 Fax: 0086-773-5606863