A hydraulic press can be understood as any machine using hydraulic pressure to compress something
. Such presses can range from small hand jacks to large machines used for compressing scrap cars into tiny boxes or sheets. The main principle on which the hydraulic presses or jacks work is basically the Pascal's principle. The equation for which is:
F0/A0=F1/A1
wherein,
F0=Force Applied (to the fluid)
A0= Area (of cylinder)
A1= Area (of the second cylinder)
F1=Resultant Force
As per the given equation, F0 force is applied onto the fluid across an area A0 within a cylinder which is then transferred to another cylinder With area A1. This ultimately results in creating the final force as F1. This is so, as generally, the hydraulic fluid is non-compressible and thus, the pressure in one cylinder is equivalent to the pressure in other cylinder. Most of the hydraulic machines work on the same principle and so does the hydraulic press as well.
It is difficult to pin point some selected few uses of a hydraulic press as such presses can be used for various purposes. It mainly depends on the industry where the hydraulic press is being used for example, in cosmetic industry, it used for making powders while in the medical industry it is used for making tablets. Press fits are used for dowels, bearings etc. it can be concluded that there can be multiple uses of a hydraulic press depending on the industry where it is being used.