Hydraulic cylinder is a mechanical actuator that converts hydraulic energy into linear motion and force. It consists of key components such as the cylinder barrel, piston, piston rod, and end caps. When pressurized hydraulic oil enters the cylinder, it pushes the piston, resulting in controlled linear motion. Hydraulic cylinders are widely used in construction machinery, agricultural equipment, industrial machinery, etc. due to their ability to provide high power in a compact space. There are many types of hydraulic cylinders, including single-acting cylinders, double-acting cylinders, telescopic cylinders, etc. Each type is custom designed for specific application and load requirements.