It has strong rigidity and high locating accuracy, simultaneously, it can compensate the axial size error accused by the centre hole size of the shaft.
该顶尖刚性强、定位精度高，能补偿由于被加工轴的中心孔误差所引起的轴向尺寸误差。
2
The locating of the deep ore body in Hongtoushan Copper Mine showed that the main shaft build in 1960s was in the predicted caving scope.