Centerless grinding machine - M1254
Centerless grinding machine - M1254


I. Structural Characteristics and Performance of Machine Tools
1. The machine tool is fixed with a grinding wheel frame, and moves through the guide wheel frame;
2. The body of machine tool is integrally casted by cast iron, with good thermal stability and rigidity;
3. The V flat guide surface of the worktable adopts imported plastic-coated materials so as to improve the wear resistance of the guide rail and reduce the friction resistance during the movement of the guide rail;
4. The grinding wheel is of cantilevered structure. The spindle of the grinding wheel adopts multi-piece long bearing bush dynamic-pressure oil film bearing;
5. The guide wheel frame is of double support structure, and guide wheel’s spindle bearing bush is an integral 1:30 conical sliding bearing; and the support end adopts an integral sliding bearing, which is lubricated and cooled by active oil.;
6. The speed of guide wheel is regulated by AC frequency conversion stepless speed regulation, which can be adjusted arbitrarily within the range of 10r/min ~ 200r/min.

II.Technical Parameters
Diameter of grinding Through-feed grinding 7-40mm
In-feed 2-40mm
Max grinding length(standard bracket) Through-feed grinding 140mm
In-feed 120mm
Specification of grinding wheel PSA350x125x127mm
Specification of guide wheel PSA250×125×75mm
Rotation speed of grinding wheel 1870r/min
Rotation speed of guide wheel (stepless speed) working speed 20~180r/min
dressing speed  250 r/min
Rotation angle of guide wheel In vertical plane -2°~ +4°
In horizontal plane 0°~+3°
Distance from the center of grinding wheel and regulating wheel to the bottom surface of bracket 220mm
Total power (9.03kw) Motor for grinding wheel 7.5kw
Motor for guide wheel 1.1kw
Hydraulic motor 0.25kw
Lubrication motor 0.09kw
Cooling motor 0.09kw
Power source 3N~50Hz 380V
Machine tool’s overall dimension 1780x890x1380mm
Net weight of machine tool 2500kg
Work accuracy
(Standard test piece Φ20x75mm,45# steel)
Roundness 0.0015mm
Cylindricity 0.002mm
Roughness Ra0.16μm