Sandvik Cone Crusher piston

 **Detailed Introduction and Manufacturing Process of the Hydraulic Cylinder of Cone Crusher** The hydraulic cylinder of the cone crusher is an important component. The following is a detailed introduction and the general manufacturing process of the hydraulic cylinder of the cone crusher: Detailed Introduction: The hydraulic cylinder of the cone crusher is mainly used to achieve various functions, such as adjusting the size of the discharge opening, providing overload protection, and automatically discharging the crushed materials. By injecting or draining oil into the hydraulic cylinder through the oil pump, the main shaft can be moved, thereby changing the distance between the bowl liner and the crushing wall and achieving the adjustment of the discharge opening. When non-crushable foreign objects enter the crushing cavity or the machine is overloaded, the hydraulic cylinder can play the role of overload protection. Under the action of the hydraulic system, the hydraulic cylinder can make the moving cone automatically retreat, discharge the foreign objects from the discharge opening, and then automatically return to the normal working state. Manufacturing Process (Taking the hydraulic cylinder of a new type of single-cylinder cone crusher as an example): 1. Material Selection: The cylinder body is usually made of S3 austenitic stainless steel. 2. Heat Treatment: The cylinder body is subjected to heat treatment to ensure that its hardness is not less than HB217, so as to ensure that the cylinder body has good hardness, is not prone to deformation and scratches, and can maintain the guiding fit relationship with the piston for a long time. 3. Cylinder Body Machining: The inner wall surface of the cylinder body is machined into a cylindrical surface to ensure that the piston can move in the axial direction. 4. Piston Manufacturing: The outer peripheral surface of the piston needs to be adapted to the shape of the inner wall surface of the cylinder body. An annular groove is opened at the lower end of the outer wall surface of the piston for installing the seal. A piston cavity is provided in the middle of the piston, a groove is opened on the right end surface, the groove communicates with the piston cavity and the height is slightly less than the height of the piston. At the same time, a communication hole connecting the piston cavity and the upper cavity of the cylinder body is opened on the upper end surface of the piston. 5. Installation of Seals and End Covers: The seals are embedded in the annular groove and the lower guiding fit section, and then the end cover is fixed at the lower end of the piston by screws to compress the seals. 6. Assembly: The end cover with the piston is installed in the cylinder body, and the cylinder body is fixed on the cylinder block. Ensure that all components are firmly installed and well sealed. 7. Oil Circuit Design: A first through hole communicating with the piston cavity is opened on the side wall surface of the cylinder body, and a second through hole communicating with the lower cavity of the cylinder body is opened on the bottom surface of the cylinder block. It should be noted that the design and manufacturing process of the hydraulic cylinder of different manufacturers may vary, and the specific process details may be adjusted and optimized according to the actual needs and design requirements. During the actual manufacturing process, it is also necessary to strictly control the processing accuracy and quality to ensure the performance and reliability of the hydraulic cylinder. At the same time, in order to ensure the normal operation of the cone crusher, attention should also be paid to the daily maintenance of the hydraulic cylinder, including keeping the hydraulic system clean, regularly checking the quality of the hydraulic oil and replacing it in time. --- The above content is for reference only. If you need more detailed and accurate information, it is recommended to refer to relevant professional materials or consult the crusher manufacturer. If you have any other questions or need further information, please feel free to ask.