Introduction to the difference between single acting cylinder and double acting of CKD cylinder

CKD cylinder single-acting cylinder and double-acting difference single-acting cylinder means that compressed air only enters air at one end of the cylinder and pushes the piston to move, while the return of the piston is operated by other external forces such as gravity, spring force, etc. . A typical structure of a single-acting cylinder is shown in FIG. Single-acting cylinders have the following characteristics. 1 Due to the single-side air intake, the structure is simple and the air consumption is small. 2 Due to the spring return, a part of the energy of the compressed air is used to overcome the reaction force of the spring, thereby reducing the output thrust of the piston rod. The space inside the 3-cylinder cylinder is reduced by the installation of the spring, which shortens the effective stroke of the piston. The spring force of the 4-cylinder return spring varies with the magnitude of its deformation, so the thrust and speed of the piston rod vary during the stroke. Single-acting piston cylinders are often used for short strokes and where the thrust and speed of the piston rod are not critical, such as positioning and clamping devices. The double-acting cylinder is shown as a typical structure of a double-acting single-rod cylinder. Double acting means that the reciprocating motion of the piston is driven by compressed air. In the cylinder of a single piston rod, because the area on the left side of the piston is relatively large, when the air pressure acts on the left side, a slow and powerful working stroke is provided; when the stroke is returned, since the area on the right side of the piston is small, the speed is relatively high. Fast and the force is getting smaller. Figure 4-3(b) shows the graphical symbols of a double-acting single-rod cylinder, which is also commonly used as a general graphical symbol for cylinders. Double-acting cylinders are the most widely used and are generally used in packaging machinery, food machinery, processing machinery and other equipment.