The pressurizing mechanism is simply to put a force on the top of diamonds by the cell’s components. The pressurizing mechanism can be mechanic by screws or hydraulic by a membrane.
In its simplest form the pressurizing mechanism can be a screw or several screws. It usually involves springs to apply constant force to the diamond anvil seats. If pressure control must be managed remotely you can use a membrane for remote control.
The pressure remote-control is also very useful in laboratory specially Syncroton or during cryo-loading of the DAC at low temperatures. This technique allows DACs to be loaded with condensed gases such as nitrogen, argon, oxygen, etc. The advantage over gas loading is the higher initial density that determines a smaller volume reduction under compression.