CNC Floor-type Milling-Boring Machine is the first self-produced CNC floor type milling-boring machining center in China . The property of this machine is stable and reliable. It adopts a lot of advanced automatic accuracy compensation technologies, such as pre-pressed, on play, high accuracy ball leading screw drive in axes X、Y、Z、W, multi-point, closed multi-point hydrostatic guide ways on linear guide ways with dynamic and static friction coefficient of no crawling at low speed, the pressure in each hydrostatic oil cavity is adjusted by spiral capillary damping throttle, which has simple structure, occupies small room, is adjusted easily. The CNC system of the machine adopts the German Siemens’ 840D CNC system, realizing the simultaneous motion of any 4 axes. If equipped with a high accuracy swivel milling head, it can work with five axes moving simultaneously. This machine can complete milling, boring, drilling, tapping and curve surface and curve line machining in five axes (such as propeller blade) through one set-up. It is the mechanical-electric integral product of high automatization and hi-tech with high accuracy and excellent rigidity. If equipped with vertical, universal, extended milling heads and CNC rotary table, it can be applied on wider range, especially on large, heavy and super heavy complicated parts. Besides, it also equipped with automatic changing device for attachments and tools. (with a tool magazine of 60 tools can realize vertical and horizontal tool change.) It is the key equipment for national important equipment and industry and it is also the initial one in China , which can replace the imports. It has reached the international advanced level but the price is 3 times lower than the same product abroad. It has strong competitive ability in the market and can be widely used in war industry, nuclear energy, metallurgical, shipbuilding, aviation, traffic industry and national important machinery industry enterprise.