Applications and Characteristic: this series is mainly designed for compression test of concrete, components tubular pile, hydrostatic and building materials in railway, highway, bridge, port, high building and other projects, as well as of metallic & non-metallic materials. With PC-electro-hydraulic servo control system, it can complete auto-control loading with unchanged speed and realize constant test stroke holding. It can also realize cycling loading and unloading process (according to corresponding test requirement), display test load and the curves of test load time on screen, and store them for further check. Testing report can be finished automatically, and be printed out with network joint set aside. The product can adjust test space like a cork by using electric lift for platen. Its powerful functions can satisfy most user requirements.