Compressed air is forced into the port at one end of the cylinder to push the piston forward, then into the opposite port to push the piston back. The alternating pressure moves the load a specified distance and then automatically retracts the piston for the next forward stroke. This process can be accomplished with a simple on-off control valve.
Basic Principles of a Double Acting Hydraulic Cylinder
For each of its ports, a double acting hydraulic cylinder needs hoses. Pumping hydraulic fluid into the advance port causes the piston rod to lengthen and force fluid out of the other port. The piston retracts when the process is reversed.
The operator can retract and extend the piston under pressure and to the required length due to the double-acting construction. This capability enables more exact lifting and lowering, making heavy machinery lifting more accurate and the process more controlled.
The fundamental design of a double acting hydraulic cylinder is shown in the image below.
Selecting a Double Acting Hydraulic Cylinder
Choosing the correct double acting hydraulic cylinder is critical for a well-functioning system. Consider the operating pressure and capacity before acquiring a double acting hydraulic cylinder to ensure it fits your operational requirements.
AiSoar Hydraulic Tools provides a diverse range of double acting hydraulic cylinders that are both versatile and long-lasting. Our HDA double acting hydraulic cylinder is designed for heavy-duty lifting and has a significant pulling force in the piston retraction mode as well as quick, regulated extension for continuous duty cycle operation.
By understanding the functions of a double acting hydraulic cylinder, you can more easily find the right one to fit your capacity and operational needs.
To learn more about our double acting hydraulic cylinders, contact AiSoar Hydraulic Tools today.