How do you calculate the force of a hydraulic cylinder?

To function effectively, a hydraulic system contains a lot of different parts that have to work together. With novel designs and methods, overall efficiency has improved over the life of designed machinery.

Several developers have tried to correct several problems in the machines’ functioning. Several resources have been computed and assessed to make the process of operating your hydraulic system easier and more streamlined.

Because your China hydraulic cylinderis responsible for applying linear motion and force, it’s critical to determine the force the cylinder will exert appropriately. In this manner, you can make sure you have the right cylinder for your system as well as your project’s demands and specs.

Some Basic Concerns 

Initial movement and core weight forces are quite minimal in most movable core applications as compared to the force required to preload the slide during the injection. Choosing cylinder size for movement and lift for applications holding the core with a heel block decreases cylinder needs substantially.

Preloading hydraulic locking cylinders is one approach to consider. These cylinders have substantially smaller bore diameters, reduced hydraulic needs, and greater speeds in the set position since they have such a high output force.

Hydraulic cylinders without a heel block or preloading locking cylinder may not be viable since some presses remove hydraulic pressure from core circuits during the injection.

Ensure that locking cylinders retain preload after locking without pressure or that a separate hydraulic source is provided for presses that drop hydraulics. With ordinary hydraulic cylinders, some customers utilize check valves.This adds to the complexity, but without a specialized hydraulic source, check valves may leak fluid, causing pressure to decrease.

Aspects of the Core Pull

Due to equipment shrinkage around the center or if the core is put into a shallow taper with preload, the initial force required to draw is sometimes difficult. Following the first retract movement, the remaining stroke and hold at the final pull position normally need minimal non-limiting pressures.

To lessen total breakaway pressures, utilizing a core stop to absorb preload and timing the end position while supplying tapers over eight degrees or a tiny touch or gap to the taper is beneficial.

Until an internal diameter taper can be added to the component to assist release, long, penetrating cores with aggressive shrinkage will most likely cause a limiting condition and require bigger bore hydraulic cylinders to draw them free.

Preloading hydraulic locking cylinders should be used with caution since many of them have significant output forces but low retract forces.Some manufacturers may have larger diameter variants available to suit breakaway needs when withdrawing the core.

Push and Pull Force in Hydraulic Cylinders

When shopping for a China hydraulic cylinder, think about whether you need a pushing force or a pulling force. When estimating the entire hydraulic cylinder force output, this is also a key aspect to consider.

A double-acting cylinder is what you need if you require a cylinder that can extend and retract utilizing hydraulic power or push and pull. It is widely agreed that the double-acting cylinder is a more powerful choice, capable of utilizing less energy to do the same task as its single-acting counterpart.

You’re dealing with a single-acting cylinder if the hydraulic cylinder you’re using just pushes the object into play. A single functioning cylinder’s piston creates a one-way track for fluid to flow through the hydraulic component. There’s a steel spring inside that helps retract the piston.

Calculations of Force Output

It’s critical to comprehend all of the operating elements to determine the exerted pressure being driven out of the China hydraulic cylinder. Each component affects the output of the assessed formula and is factored into the extended computations.

To get the overall force, multiply the piston’s entire square inch surface area by the pressure differential on both sides. Because you are merely measuring the push through force that happens in either cylinder, the same single-acting formula may be used for both sorts of China hydraulic cylinders.

China Hydraulic Cylinder’s Push Force Calculations

Two primary components must be evaluated to compute the force of a cylinder pushing on an item. To begin, determine the system pressure (PSI) and the diameter of the piston (or bore). Establishing the working area of the cylinder is one way to do so. Follow the steps below to achieve this:

Area = D^2 (diameter) x π/4

You may use the method below to compute the push force of your hydraulic cylinder now that you’ve formulated the working area of the system’s cylinder.

Push force = PSI (system pressure) x D^2 (diameter) π/4

(Push force = PSI x Area)

Double Acting Hydraulic Cylinder’s Pull Force Calculations

There is a little change in the formula when working with a double-acting hydraulic cylinder. The decrease of the surface area is the major cause of a slightly revised computation.

The complete area of the piston, for example, is present in comparison to the single operating side. The piston rod region on the retract side of the cylinder is now taking away from the total surface.As a result, the surface area of the entire rod area is taken into account in this computation. The cylinder road area may be found by:

cylinder rod area = π x cylinder bore^2 – cylinder rod diameter^2 /4

For double-acting hydraulic cylinders, once you’ve determined the cylinder rod area, you may compute the cylinder force.

The following is the formula:

Double-acting cylinder force = PSI x Cylinder Rod Area


It’s not always easy to find the correct fluid equipment. However, it is better if you contact the experts. Their knowledgeable staff will assist you in locating just what you want to complete the task. Maintenance is a critical component of proper operation. The hydraulic system will start to perform poorly if your rod seal leaks, or your cylinder piston rod is damaged. We recommend annual examinations, required repairs, and potential replacement of your existing hydraulic equipment and its components to avoid this. Hence, hurry up and get in touch with the China hydraulic cylinder experts.

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