Hydraulic cylinders are essential components in hydraulic systems, as they are used to generate linear force using pressurized oil. They are often used in industrial machines, such as presses, cutting machines, lift bridges, excavators, and cranes, to provide lifting, pushing, or pulling force. There are several types of hydraulic cylinders, each designed to meet specific needs. Single-acting cylinders only deliver force in one direction, while double-acting cylinders can generate force in both directions. Telescopic cylinders are used to provide a longer working stroke without increasing the overall length of the cylinder.