Centerless grinding machine - MT1040A
Centerless grinding machine - MT1040A

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 with 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 guide wheel is of cantilevered structure, and the spindle bearing of the guide wheel is a 1: 30 integral sliding bearing, with large bearing capacity and high precision;
4. The guide wheel frame is fed through dovetail roller guide and feeding-purpose differential screw rod;
5. The machine tool is equipped with cutting mechanism;
6. The mounting surface of the bracket is positioned by T-shaped slot, which enables it move backward and forward and adjusted conveniently.

II.Technical Parameters

Diameter of grinding Through-feed grinding 2~40mm
In-feed 7~40mm
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 190mm
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 1550x1300x1405mm
Net weight of machine tool 约2000kg
Work accuracy
(Standard test piece Φ20x75mm,45# steel)
Roundness 0.002mm
Cylindricity 0.003mm
Roughness Ra0.32μm