Double acting hydraulic pile hammer is a new large-scale mechanical
and electrical hydraulic high-level application of offshore engineering equipment,
which is the concentrated embodiment of high-pressure, large flow and high stability
hydraulic equipment. The cartridge valve is a new type of hydraulic component to
meet the working requirements of large-scale and fast hydraulic equipment. This paper
introduces the structure, characteristics and technical application of the cartridge valve
based on the power system of the new-type hydraulic hammer.