They are also referred to as pneumatic actuators. These are rather products that are used generally to provide rotary or linear motion as well as force to automated processes, machines and systems like in industrial applications. They function as compressed air gets forced within the actuator or cylinder.
Its purpose
The purpose of Pneumatic cylinder or actuator is to move the piston housed inside it. A particular mechanism constructed with the piston is what performs the task. Created energy gets converted to practical use. In factory automation, for example, it helps in picking as well as placing a system. It achieves force, thereby generating accurate rotary and linear motion, thus being the perfect choice to overcome challenging environments like extreme temperatures.
Reasons for its growing popularity
This product requires very little maintenance and is lightweight. Generally, they produce slower speed and less force when compared to electric or hydraulic systems. However, they can be termed to be very much an affordable option. They are rather produced to house or international standards’. The standard common adopted in Europe is ISO while in North America is NFPA standards.
Selection tips
The actuator features and type required will be defined by the chosen application. Actuators or cylinders are found in different sizes, ranging from 8 to 320mm. They are also designed to perform a variety of functions based on the requirements. Either, they are double or single acting. Knowing a few key factors given below can help with the selection process.
- Flow and pressure requirements: Identify what you desire from the pneumatic cylinder or actuator. It also tends to cover other desired components. If incorrectly sized, then it will only affect significantly its performance.
- Motion type: The cylinder or actuator type will be determined if you desire linear or rotary motion.
- Special features: Use integrated pneumatic actuator or cylinder if planning to save energy. Make sure that the cylinder or actuator chosen is of appropriate size and matches perfectly the operation.
- Environment: Developments made in corrosion-resistance allows using them even in extreme temperatures. Also are available stainless steel cylinders and actuators.
- Double or single acting: Generally, these products fall into either categories. This is based on application type, motion or forced required, job size, expected control or accuracy. They house a rod and piston inside it.
Know the types
- Tie-Rod and ISOLine Profile Cylinders: They are durable, high performing and designed to operate even high temperatures.
- Compact Cylinders: They are best suited to machineries with less space.
- Roundline Cylinders: They suit best lighter duties as well as in low force applications and available as double or single acting.
- Rotary Actuators: They are double acting and offer turning or angular motion. They are available in pinion and rack or rotary vane versions.
- IVAC (Integrated Valve and Actuator): It combines glandless control valve, linear actuator, two solid state switches or reed and speed controllers.
Selecting the right one
You can come across pneumatic actuators and cylinders of different types. Choose one based on your desired application. It can be double or single acting. Doing further will be necessary for proper selection.
