Centerless grinding machine - M1050A
Centerless grinding machine - M1050A

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. Grinding wheel’s spindle bearing is a five-piece dynamic-pressure sliding bearing, with large bearing capacity and high rigidity;
2. Guide wheel’s spindle bearing is a 1: 30 integral sliding bearing, with large bearing capacity and high precision;
3. Variable speed of guide wheel adopts AC frequency conversion speed regulation, which can realize stepless speed adjustment;
4. Trimming machines for both grinding wheel and guide wheel adopt hydraulic transmission and stepless speed adjustment.
5. The machine tool is equipped with automatic cutting grinding device, able to execute semi-automatic and automatic cycle work.

II.Technical Parameters
Diameter of grinding Through-feed grinding 5~50mm
In-feed 7~50mm
Max grinding length(standard bracket) Through-feed grinding 120mm
In-feed 120mm
Specification of grinding wheel P400x150x230mm
Specification of guide wheel PSA300×150×127mm
Rotation speed of grinding wheel 1668r/min
Rotation speed of guide wheel (stepless speed) 20~200r/min
Rotation angle of guide wheel In vertical plane -2°~ +5°
In horizontal plane -1°~ +3°
Feed rate of feed hand wheel per division 0.002mm
In-feed travel amount Total stroke volume 3.5mm
Fast speed stroke volume 2~3.5mm
Low speed stroke volume 0~1.5mm
Distance from the center of grinding wheel and regulating wheel to the bottom surface of bracket 220mm
Total power (13.81kw) Motor for grinding wheel 11kw
Motor for guide wheel 1.5kw
Hydraulic motor 1.1kw
Lubrication motor 0.09kw
Cooling motor 0.12kw
Power source 3N~50Hz 380V
Machine tool’s overall dimension 1920x1681x1479mm
Net weight of machine tool 2800kg
Work accuracy
(Standard test piece Φ20x90mm,45# steel)
Roundness 0.002mm
Cylindricity 0.003mm
Roughness Ra0.32μm