A hydrualic press uses a hydrualic cylinder, which is a single-direction mechanic actuature, to create compressive force. Invented in 1795 by Joseph Bramah, hydrualics were conceptualized by studying the motion of fluids within the humble toilet, which was also invented by Bramah.
Hydrualics depend on Pascal's law, which basically states that when an incompressable fluid is given pressure, the pressure is applied evenly in every direction. This law allows the force generated from compressing a fluid to be utilized in moving mechanics like a piston. It was also discovered that using a smaller piston to pressurize the fluid, through which moves a larger piston, generates greater forces than using two equally-sized pistons. This is called a force multiplier and is crucial when creating a hydrualic system.
Hydrualic presses are very versitile in a metalworking shop. Whether for maintance or production, these presses are capable of performing many tasks. Hydraulic shop presses can be used for forging, clinching, molding, blanking, punching, deep drawing, metal forming operations.