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The specifications of the hydraulic press are generally expressed in the nominal working force (kN) or the nominal tonnage (ton). Most of the hydraulic presses for forging are hydraulic presses, and the tonnage is high. In order to reduce the size of the equipment, large forging hydraulic presses often use higher pressures (about 35 MPa), and sometimes ultra-high pressure of more than 100 MPa is also used. Hydraulic presses for other uses generally use a working pressure of 6 to 25 MPa. Hydraulic presses have a lower tonnage than hydraulic presses.
A hydraulic press is a machine that uses a hydraulic cylinder to generate a compressive force. It works by using a fluid, such as oil or water, to transmit the force from one end of the cylinder to the other. The fluid is pressurized by a pump, and the resulting force is applied to a piston, which then transfers the force to a piston rod. The piston rod is connected to a platen, which is the part of the press that holds the workpiece.
Some characteristics of hydraulic presses include:
High force: Hydraulic presses are capable of generating very high forces, typically much greater than those produced by mechanical or pneumatic presses.
Adjustable force: The force generated by a hydraulic press can be easily adjusted by changing the pressure of the fluid in the cylinder.
Versatility: Hydraulic presses can be used for a wide range of applications, including forging, stamping, bending, and straightening.
Efficiency: Because hydraulic presses use fluid to transmit force, they are typically more efficient than other types of presses.
Safety: Hydraulic presses are generally considered to be safer to operate than other types of presses because the force is applied gradually and can be easily controlled.
The basic principle is that the oil pump delivers the hydraulic oil to the integrated cartridge valve block, and distributes the hydraulic oil to the upper or lower cavity of the cylinder through each check valve and relief valve, and the cylinder is moved under the action of high-pressure oil. A hydraulic press is a device that uses liquids to transfer pressure. Liquids follow Pascal's law when they transfer pressure in a closed vessel.
Hydraulic presses include hydraulic presses and hydraulic presses. The water-based liquid as the working medium is called the hydraulic press, and the oil as the working medium is called the hydraulic press.
Double-column hydraulic presses are not only diverse, but also versatile. According to the type of liquid that transmits pressure, the two-column hydraulic press can be divided into hydraulic press and hydraulic press. The total pressure generated by the water is large and is often used for forging and stamping.
Hydraulic presses are mainly used in industrial production for heavy-duty external processing, such as stamping, forging, stretching, die casting and so on.
Hydraulic press machines are a type of mechanical press that use hydraulic pressure to apply force to a workpiece. Hydraulic press machines are commonly used in a variety of industries, including automotive, aerospace, and metalworking, to perform a wide range of tasks, such as punching, bending, stamping, and forming.