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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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