How is the oil hole of the hydraulic cylinder designed to have a raised hole on it?

The oil hole of hydraulic cylinder with hole is designed above, and its lifting principle is based on the working principle of hydraulic system. Hydraulic cylinder is a device that converts liquid pressure into mechanical motion, which is composed of piston, seal, oil hole and other parts. When the liquid in the hydraulic cylinder is compressed, the piston will move upward, thus pushing the mechanical parts connected with it to carry out lifting movement. In a hydraulic cylinder with holes, oil holes are designed on it. When the liquid enters the cylinder, the liquid will enter the cylinder through the oil hole, thus forming pressure. Because the oil hole is on it, the pressure of liquid will act on the piston downwards, thus pushing the piston to move upwards and realizing the lifting movement of mechanical parts. At the same time, the pump, valve and other components in the hydraulic system will also control the flow and pressure of liquid, thus realizing the precise control and motion control of the hydraulic cylinder.