How does a Hydraulic actuation work and what can we tell you about it? You will find out by reading this article! A Hydraulic actuation makes mechanical movements and is controlled by a cylinder or fluid motor. The machine provides output in the form of linear or rotational movements. To achieve all this, the machine must use a lot of force. This is caused by the liquid in the machine. This is because the density of water is very high, so it can hardly be compressed, if at all. The machine does strive to do this, so it puts a lot of force into it. The hydraulic cylinder, which the machine uses, is hollow inside. This means it can optionally exert suction on two sides. The suction force is created by the pressure of the fluid. However, sometimes the machine is single-acting, which means that it only exerts suction on one side. The liquid then moves only in one direction. To give the piston a recoil, which is necessary for the fluid to circulate, a spring is often used. Thus, Hydraulic actuation can also be double-acting. This is the case if suction is applied on two sides through the fluid in the hollow cylinder. In this case, the fluid moves from one side to the other due to the difference in pressure at both ends. This eventually causes the machine to move as well. Given the high pressures of this system, Hydraulic actuation makes it possible to generate gigantic driving forces. A hydraulic pressure of 2000 PSI applied only to one side of a piston with a diameter of 3 inches can already generate a linear thrust force more than of 7 tons.When making a choice for a hydraulic motor, there are a number of factors to consider, namely:
- Speed;
- torque;
- range;
- physical characteristics;
- service and maintenance;
- The noise level of these devices;
- The other components in the system (to what extent do they fit together)?
The difference between a Hydraulic actuation and a pneumatic actuator
The pneumatic actuator uses air as its ”driving fluid.” Air is elastic and therefore it moves easily. With the Hydraulic actuation, the oil barely moves with it under tension. If you close the outputs, it will also lock up quickly, affecting the force generated. This is convenient!
What can we use Hydraulic actuation for?
Now that you’ve read all this, you’re probably wondering what exactly the machines are used for. This makes sense because the terms used above are not simple for everyone. Hydraulic actuation finds its application in many types of conditions. It is used for crane drives, but also for the wheel motors of military vehicles or self-propelled cranes and excavators. Furthermore, it is also used, for example, for transport and feed drives, agitator drives, machines for destroying cars, tires and other waste, among others, and also for drilling rigs and powered powerful lawnmowers, for example.
You have been able to read how Hydraulic actuation works and how powerful it is. We also briefly compared it to other types of actuators. Furthermore, we have discussed what you can use it for. If you want to know more about this subject or related topics, please visit our website: duxvalves.com.