... transmission 2.Mechanical clamping 3.Mechanical speed The Radial Drilling Machine Model Z30100X25,Z30100X31 is a new series of diversified functions ... Organization(ISO) in the reccent years. In this machine, hydraulic reselections speed and chang mechhanisms are adopted,the headstork, ... as spindle in neutral postion are all controlled by a single-lever,the machine has the maintenance,hihg accuracy, ...