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. You can learn more about hydraulic press via https://www.macrodynepress.com/hydraulic-presses/.
Image Source: Google
Pascal's principle is the foundation on which the hydraulic presses or jacks operate. The formula is as follows:
F0/A0=F1/A1, where F0 stands for Force Applied (to the fluid)
A0 is the area (of the cylinder)
A1 stands for Area (of the second cylinder)
F1 = Force as a Resultant
F0 force is supplied to the fluid across an area A0 within a cylinder according to the following equation, which is subsequently transferred to another cylinder with an area A1. As a result, the final force is determined to be F1.
This is so, as generally, the hydraulic fluid is incompressible and thus, the pressure in one cylinder is equivalent to the pressure in another cylinder.
Most of the hydraulic machines work on the same principle and so does the hydraulic press as well. It is difficult to pinpoint 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 the cosmetic industry, it is 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.