Sensors for pneumatic cylinders are electronic elements that transform a magnetic energy signal produced by a magnet carried by the cylinder itself to give an electrical or electronic signal. This detection is made through the cylinder wall, usually made of aluminum, and sent to a controller for further processing. Cylinder sensors are characterized by high switching frequencies, resistance to dust and dirt and easy handling.
The function of the sensors is to provide precise positioning of the piston rod that carries the pneumatic cylinder and to be able to dialogue with the electronic systems of the machine's governance.
Accurate position detection on cylinders is important to ensure consistent production, for example in the following application areas:
The types of sensors for pneumatic cylinders can be installed on all types of cylinders ISO-6431 ISO-6432, ISO-21287, ISO-15552 VDMA and CNOMO, Compact guided cylinders, pinch cylinders, telescopic cylinders, cylinders with hollow rod for vacuum, cylinders turning, rodless cylinders, magnetic cylinders, bellows cylinders, metering cylinders and pneumatic grippers.
The sensors can be 2-wire, Reed type, operating with a switching frequency of 1,000 Hz per second, with direct or alternating current, or 3-wire, open or closed contact PNP –NPN. These other cylinder sensors use a GMR cell that It can deliver a maximum of 10,000 signals per second.
In addition, protection against short circuits and overvoltages is installed by default.
The main parts of a pneumatic cylinder are:
They are simple elements and easy to assemble. It requires no maintenance and is economical to install. Long durability. They are mounted in the slot that the cylinder has incorporated or by means of a fixing flange for any type of profile that the cylinder has. It can be mounted in any position.
The pneumatic cylinder sensors are safe, do not have explosive characteristics or produce excessive heat. They can be supplied with ATEX regulations
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