F series heavy-duty knee-type milling machine is developed by absorbing the feature and technology of advanced European countries in the middle period of 1990s. It has strong loading capacity, large specification parameter, high rigidity and unprecedented structure precision, its quality is obtained according to several years’ combination design or transformation design, the birth of this kind of product has made the dream of milling machine to pursue senior, high level knee-type milling machine come true. With optional accessories as dividing head, rotary table, machine vice, boring and facing milling head, milling chuck, etc. its machining scope/capacity greatly enlarged. X6145/1: Digital readout(2 dimensional or 3 dimensional) is added to X6145 machine which can improve the machining accuracy and producing efficiency.