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Crankshaft Grinding Machine

Views:158 Submit date:2015-02-04
Crankshaft Grinding Machine

Mark & model  :  MQ8260A/1600

Origin  :  Asia and Pacific Area  China

Quality standard  :  International

Submit date  :  2015-02-04

H.S.Classification  :   Machinery & Electronics  Machines for Working Metal   8459 Machine tools for drilling, boring, milling etc.

Product profile  :  Crankshaft Grinding Machine

  • Features
    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



  • Accessories
    Crankshaft grinding machine MQ8260A

    Standard Accessories
    jaw chucks
    wheel dresser
    wheel balancing arbor
    leveing wedge
    driving dog
    vertical aligning stand
    horizontal aligning stand
    wheel balancing stand
    hanging measuring device
    steady rest
    centering device
    grinding wheel

    Optional Accessories
    end dresser
    digital readout
    diamond dresser