Rotary actuators

Rotary actuators

Rotary actuator - what should you know about it?

The extensive catalog of Pneumatig products includes modern rotary actuators made of high-quality components. Their task is to put the relevant elements into rotation. When choosing the right rotary actuator, attention should be paid to several important parameters that mainly determine the application, as well as the specific method of operation of the actuator. Rotary actuators are also referred to as shuttle actuators. Here we present the most important information about these pneumatic cylinders.

How does a rotary actuator work?

To put it simply, a rotary actuator serves to make a specific element rotate. This element can be, for example, a workbench or a power tool head. This is due to the specificity of the movement - the linear movement of the piston is changed through the gear into the rotary movement of the shaft. The ADA rotary actuator enables the control of ball valves and dampers with an operating angle of 90 degrees. Such actuators perform a quarter-turn motion with an adjustable range of 5 degrees. A pneumatic rotary pneumatic actuator uses compressed air at a specified pressure to set the elements in motion.

We also distinguish rotary actuators with a rotation angle of 180 degrees (half a turn) and 360 degrees (full turn). Several key considerations determine the specific application of rotary actuators, namely: piston diameter, torque, type of connections, as well as operating pressure and temperature. Modern industry could not do without modern rotary actuators, which perform important functions on production and transport lines. They are also indispensable in workshops, providing employees with greater comfort at work.

What industrial applications are rotary actuators?

Rotary actuators are used to rotate and position parts and workpieces. This is one of the most important types of pneumatic actuators on which modern industry is based. It is these elements that allow you to automate many processes on production and transport lines. Rotary actuators are used in industry, transport as well as in the power industry. On production lines, they allow individual elements to be transferred to the next sections of the line. They can also set in motion turntables, which are an indispensable element of the equipment of many workshops and production plants.

The versatile use of pneumatic rotary actuators is not surprising. Due to the scope of the work performed, they are even indispensable in modern production and machining processes. It is also important that each rotary actuator has a specific work specificity that determines a specific application. Cylinders with a rotation angle of 90 and 180 degrees are usually used in production lines, they allow for the transfer of individual working elements. On the other hand, actuators with a rotation angle of 360 degrees are used in workshops, allowing the worker to work more comfortably without having to move around the table.

Which parameters should be considered when choosing a rotary actuator?

The key issue is of course the torque, which determines the product of the force directed to the piston in order to obtain a specific specificity of the movement. In other words, torque affects both the acceleration of the piston, its maximum speed, and the ability to transfer motion to components of a certain mass. When choosing a pneumatic rotary actuator, always pay attention to the torque and select it in terms of the specificity of the work that will be performed with its support. Rotary actuators available in our offer have a torque in the range of 11 - 234 Nm. The range of rotation is also a key criterion: 90, 180 or 360 degrees.

The operating conditions must also be taken into account when selecting a rotary actuator. Of course, the pressure at which the compressed air will set the pistons in motion is crucial. Rotary actuators used in production lines can cope well with pressures up to 8 bar. Another issue is the operating temperature, which can be used with a given pneumatic rotary actuator . Standard actuators can easily cope with the temperature range -20 - 100 degrees Celsius. Added to this is the type of connections and the ending method of the actuator. The specific capabilities of the actuator depend on this. When choosing an actuator, it is worth checking the norms and standards with which a given model complies.

Advantages of modern rotary actuators

As we have already said, rotary actuators play an extremely important role in modern industry. But what exactly makes a pneumatic rotary actuator so widely used? Without a doubt, safety and a high work culture. In the case of these actuators, there is no need to generate a spark, which automatically increases fire safety. Properly maintained pneumatic systems are able to perform their work impeccably for many years.

Another advantage is the versatile possibilities offered by rotary actuators . They are used both for positioning, rotating as well as for transferring working elements. With the help of modern rotary actuators, reliable, ergonomic and very efficient production and transport lines can be built. It is worth mentioning that rotary actuators work very well in places where, for safety reasons, systems powered by electricity cannot be used. This is another advantage that makes the use of pneumatic actuators so wide.

Under what conditions can rotary actuators work?

The exact working conditions are of course determined by the design of the pneumatic actuator itself, namely the material and technologies in which it was made. There are often difficult conditions on production and transport lines that require the use of appropriate components. One such factor is the high pressure at which compressed air drives the pistons. The high-quality rotary pneumatic actuator can easily withstand an operating pressure of up to 7-8 bar. Regarding the temperature range, rotary actuators can withstand high amplitudes ranging from -30 to over 100 degrees Celsius. This is an important factor that should be taken into account when choosing an equivalent actuator.

Rotary actuator with shaft or bore?

We already know how a pneumatic rotary actuator works. Compressed air sets the pistons in motion and they move in a linear motion. The gear converts a linear motion into a rotary motion. The element connected to the rotary actuator will therefore move in a rotary motion. The method of fixing the working elements depends largely on the end of the actuator. A pneumatic rotary actuator ended with a shaft can be used, for example, to rotate turntables that will be put on the shaft. On the other hand, the shafts with a hole make it possible to place any heads with a thread or a shaft on the actuator.

What determines the torque of a rotary actuator?

Torque is one of the key criteria that should be considered when choosing the right pneumatic rotary actuator . It is the torque that determines the maximum speed of the piston, as well as the ability to transfer motion to the element placed on the gear ending with a shaft or hole. Two factors determine the torque: the diameter of the piston and the pressure of the compressed air. The greater these values, the greater the torque will be. In our store, you can choose a pneumatic rotary actuator with a specific torque in the range from 11 to 234 Nm.

How to choose a rotary actuator tailored to individual needs?

The main determinant when choosing a rotary actuator is, of course, what work will be performed by it. Therefore, it is necessary to take into account the specifics of the work, as well as what elements will be set in motion by the rotary actuator used. Based on this information, we select the actuator in terms of: torque, maximum allowable pressure, compressed air temperature, mounting and end of the actuator, as well as the angle of rotation, which determines the range of motion.

Adapting the rotary actuators available in our offer to the production line, transport or pneumatic system is much easier, because we offer our customers rotary actuators in accordance with the ISO 5211 standard, which means that the actuators we offer are fully interchangeable and compatible with other elements of the fittings. If you do not know which pneumatic rotary actuator will be the optimal solution, please do not hesitate to contact us. Qualified employees of Pneumatig provide professional advice and help you choose the optimal rotary actuator matching the specific specifics of the work.

Why is it worth choosing a pneumatic rotary drive available in our offer?

Pneumatig places great emphasis on uncompromising and top-quality production. We know how important a role modern rotary actuators play in modern industry and how much depends on them. That is why we want to offer our clients only high-quality solutions created with the use of the best components and the latest technologies. Each product is described in detail and has a detailed technical specification, thanks to which customers can find a rotary pneumatic controller tailored to their needs much easier.

Our company also provides professional advice and will be happy to provide any tips necessary when choosing the right driver. Our company's rotary controllers have positive opinions from customers and are used in many industries. We always make every effort to meet the individual expectations of each client. To sum up, by choosing a pneumatic rotary actuator in the Pneumatig offer, you can expect the highest quality of workmanship, precise specifications, a favorable price offer, as well as professional advice.