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Single Action and Double Action Cylinder: understand the difference

Hydraulic cylinders are linear actuators that convert work energy into mechanical energy. They transform hydraulic work into linear mechanical energy, which is applied to a resistive object to do work.

A cylinder consists of a cylinder liner, a movable piston, and a rod attached to the piston. The bottom bearing is fixed to the liner by welding and the head in most cases is threaded, also into the liner.

As the stem moves in or out, it is guided by removable bushings called gaskets. The side on which the rod operates is called the front side or "cylinder head". The opposite side without rod is the rear side. Fluid inlet and outlet holes are located on the front and rear sides.

Hydraulic cylinders are classified by their characteristics. They can be simple effect/action; double action; or telescopic. But do you know how to identify them? In this article, these types of cylinders will be discussed, as well as their differences. Check out!

Hydraulic Cylinders and their main types

Hydraulic cylinders integrate virtually all equipment that requires some type of articulation system. That's because they aim to transform movement and momentum. Thus, they are fundamental with regard to the performance of varied and important functions.

They directly impact the productivity of the most diverse segments. From industry and civil construction to transportation and mining. In this way, they can be applied to common machinery and even engineering vehicles, such as excavators, road implements and cranes.

Because of this, they are classified into single-acting, double-acting and telescopic cylinders. Look!

Single acting cylinders

It is a cylinder in which fluid pressure is applied in only one direction to move the piston. The return or recoil process is carried out due to the weight of a load, or induced by an additional mechanical force, such as a spring.

Double acting cylinders

It is a cylinder in which fluid pressure is applied to the moving element in either direction. It features fluid entry points at both ends. The fluid is applied by means of a hydraulic pump to the inside of the cylinder, causing it to have forward and backward movements, later this fluid is destined for a reservoir.

Telescopic cylinders

Telescopic cylinders are used especially for lifting loads, ie for heavier services and longer distances. They can be single-acting or double-acting.

Single acting telescopic cylinders have the characteristic of tilting by means of applied pressure and the return is generally exerted by the weight of an external load. Double-acting telescopic cylinders, on the other hand, are those that in both cases advance and retreat are carried out by hydraulic fluid.

Hydraulic cylinders: the ideal solution

With wide application possibilities, hydraulic cylinders are allies for those looking to combine power and movement in a dynamic and optimized way in the most diverse systems and segments.

Thus, looking for products that combine quality and market accessibility is a challenge that can guide this choice. And, in this sense, working with serious and credible brands can be the path for those seeking to make assertive choices.

Hidromas has been operating for over 40 years in the internal and external supply of hydraulic cylinders for major brands, always committed to customer and partner satisfaction. Bring your demand and we present a solution.