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    Model M250A Internal grinding machine 

    Home - Product - General-purpose internal grinding machine series

    Main characteristics of this machine tools
    ★The machine is mainly applicable to grinding of internal hole, internal tapered hole and stepped hole.
    ★The work table is hydraulically driven. The working speed can be steplessly adjusted.
    ★The dressing motion of grinding wheel is controlled by hydraulic handlebar The dressing speed can be steplessly adjusted.

    Specification parameter list

    Model of machine tools M250A
    Grinding aperture(mm) ф150-ф500(ф50-ф150 customized grinding head)
    Maximum grinding depth (mm) 450(the machine can be customized if it is deepened)
    Swing diameter of work piece (mm) Inside the shell (mm) ф510
    Outside the shell (mm) ф725
    Maximum rotation angle of headstock(°) 15°,20°
    Rotating speed of work piece(r/min) 28、38、57、160、212、320
    Rotating speed of grinding wheel(r/min) 2450、4200
    Total power of machine tools (kw) 8.92
    Power of work piece motor(kw) 1.8/1.8/2.5
    Power of grinding wheel motor(kw) 5.5
    Outline dimension of machine tools(mm) 3860×1600×1850
    Weight of machine tools(kg) 4550
    Power supply used by machine tools 3N-50Hz 380v
    Working accuracy (according to standard specimen) Roundness of internal hole(μm) 5
    Cylindricity of internal hole(μm) 5
    Surface roughness of internal hole(μm) Ra0.63

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