If you’re in the market for a cylinder, you may be wondering what the difference is between single and double acting cylinders. In this article, we’ll break down the differences between these two types of cylinders so you can make an informed decision when purchasing one. Stay tuned!
What is a single acting cylinder and what is a double acting cylinder
Single-acting cylinders have a working chamber that is always open to atmospheric pressure, while double-acting cylinders have a chamber that alternates between being open to atmospheric pressure and being pressurized. The benefit of using a double-acting cylinder is that it can produce linear force in both directions, while a single-acting cylinder can only produce force in one direction.
When using a single-acting cylinder, you must always take into account the atmospheric pressure pushing against the piston. This is why single-acting cylinders are typically used in applications where the force required is not too great and the atmospheric pressure is helpful, such as in lifting a load with a pulley system. If the force required is too great, or if the atmospheric pressure is not helpful (as in pushing against a wall), then a double-acting cylinder must be used.
Double-acting cylinders are more versatile than single-acting cylinders, but they are also more expensive and require more maintenance. Double-acting cylinders have seals on both sides of the piston to keep the pressurized air from leaking out, while single-acting cylinders only have a seal on one side. Double-acting cylinders also have a return spring on one side to help return the piston to its original position when the power is turned off.
Single acting cylinders are most often used in applications where the force required is not too great and the atmospheric pressure is helpful. A good example of this would be in a pulley system, where the atmospheric pressure assists in lifting the load. If more force is needed than what the atmospheric pressure can provide, or if the atmospheric pressure is working against the desired direction of motion, then a double acting cylinder must be used. Click RIVERLAKE for more details.
When would you choose one over the other
As a general rule, single acting cylinders are used for applications where low force is required and/or space is limited. Double acting cylinders, on the other hand, are better suited for applications that require higher force or more precise control.
There are, of course, exceptions to every rule. In some cases, a double acting cylinder may be the better choice for a low force application. This is usually due to the need for higher precision or greater control.
When choosing between a single acting cylinder and a double acting cylinder, it is important to consider the specific needs of your application. If you are unsure which type of cylinder is best for your purposes, consult with an expert.
Bottom Line
A single acting cylinder gets its power from the pressure of gas or fluid on one side of the piston. This pressure moves the piston in one direction and is used to create motion. A double acting cylinder uses pressure from both sides of the piston to create a reciprocating motion.
