Factors to Consider When Choosing Hydraulic Rod Cylinders

  • Part of the popularity of pneumatic cylinders is their simplicity, long life, cost-efficiency and ease of installation and maintenance. They produce great amounts of force across a broad spectrum of velocities, maintain high speed operation for long periods without overheating, and suffer no damage if they stall. On top of all that, pneumatic Standard Cylinder are robust enough to work in extreme conditions such as dirty and dusty environments, high-pressure wash downs, high humidity and explosive areas.

    Bore Size

    Once you arrive at the force required by your cylinder, the next step is to calculate the bore size required of the cylinder. The force produced by the cylinder is simply the product of the system pressure multiplied by the area of the internal piston surface upon which that pressure acts. This formula is used to calculate the bore size needed to achieve that force.


    Speed affects how well your load can be controlled, and the longevity and productivity of the cylinder. The stroke speed of a pneumatic cylinder can be calculated using the formula:

    s = 28.8q/A, where

    s = speed, in inches per second

    q = airflow in standard cubic feet per minute

    A = piston area, in square inches

    Speed can also be affected by other factors, including the size of ports, hoses or tubing, and the rate of inlet and exhaust flow via control valves. Bottlenecks can sometimes happen, restricting the air flowing into or out of the cylinder, and restricted air pressure will slow the cylinder down.

    Air consumption

    It's often necessary to calculate the cylinder’s air consumption carefully, to make sure enough air will be available, especially in fast-cycling applications. Make sure that the compressor has the capacity to supply your pneumatic equipment even in worst-case conditions, as air starvation at a crucial moment will adversely affect performance.


    Mounting configuration defines how a cylinder is attached to the equipment. Many mountings are produced as standard, both rigid and articulated, which makes it easier to fulfil specific movement requirements for your application. If the style of cylinder you want doesn't have the appropriate hardware to match your desired mounting position, it can be modified, but commissioning unique hardware will cause delays and add to the cost.

    Rod Size

    Most cylinders come with one or two options for rod size. You’ll need to know your stroke length to determine the size necessary to handle the mass of the load. As the stroke length gets longer, the pressure on the piston rod is increased.

    That's all information, if you want to know more information please visit the professional Pneumatic Cylinder manufacturer https://www.nblida.com/product/actuators/