Centerless grinding machine - M1080B
Centerless grinding machine - M1080B

This centerless grinding machine is applicable for centerless through-feed grinding of cylindrical part, and in-feed grinding of cone and rotary part. It's applicable for mass production. It can also be used for centerless in-feed grinding of cone-shaped parts with conicity no more than 1:20 and the formed rotational parts once the in-feed grinding mechanism is added.

I. Structural Characteristics and Performance of Machine Tools
1. The machine tool is fixed by a grinding wheel frame, and moves through the guide wheel frame;
2. The grinding wheel is of cantilevered structure. The spindle of the grinding wheel adopts multi-piece long bearing bush dynamic-pressure oil film bearing;
3. The front bearing of the guide wheel’s spindle adopts conical-surface sliding radial bearing, and the rear bearing is radial thrust combined ball bearing;
4. The transverse feeding mechanism adopts fluorine-containing plastic-coated guide rails and feeding-purpose differential screw rods;
5. Trimming machines for both grinding wheel and guide wheel are hydraulically driven, and equipped with profiling devices, which are suitable for cutting and grinding multi-step workpieces;
6. The speed change of guide wheel’s spindle adopts the change gear (variable frequency speed adjustment can be designed according to the user's needs).

II.Technical Parameters

Diameter of grinding Through-feed grinding 5~80mm
In-feed 5~80mm
Max grinding length(standard bracket) Through-feed grinding 180mm
In-feed 140mm
Specification of grinding wheel P500x150x305mm
Specification of guide wheel PSA300×150×127mm
Rotation speed of grinding wheel 1300r/min
Rotation speed of guide wheel working speed(eight) 13,16,22,29,40,53,73,94r/min
dressing speed  300r/min
Rotation angle of guide wheel In vertical plane -2°~ +5°
In horizontal plane 0°~ +3°
Distance from the center of grinding wheel and regulating wheel to the bottom surface of bracket 210mm
Total power (16.99kw) Motor for grinding wheel 15kw
Motor for guide wheel 1.5kw
Hydraulic motor 0.25kw
Lubrication motor 0.12kw
Cooling motor 0.12kw
Power source 3N~50Hz 380V
Machine tool’s overall dimension 1950x1580x1485mm
Net weight of machine tool 3500kg
Work accuracy
(Standard test piece Φ20x90mm,45# steel)
Roundness 0.002mm
Cylindricity 0.003mm
Roughness Ra0.32μm