The 4 axis VMC-850 is a high performance CNC vertical machining center. The machine has the characteristics of high rigidity, high speed and high precision and has more advantages on operation and capabilities compared with similar products. All castings of the machine have been secondary tempered to provide excellent rigidity and stability for the whole machine. This machine applied with high rigid C design on structure, it also has been done with reinforcement on machine ribs. All the contact faces have been scraped manually, which guarantees the durability of accuracy. X/Y axes apply with two types of rolling guide way: ball bearing and roller guide way, which is optional that customer can choose base on customer's needs. Z axis applies roller guide way, which enables the machine to be with high rigidity, low noise, and small friction. The machine equips with an air tank, and the water can be drained out manually. Spindle is connected directly, and the highest speed can reach 10000RPM, which make this machine as a good choice for machining some complex parts with high efficiency.