Linear Actuators
With our linear actuators, we start at 200 N and go all the way up to 200,000 N, which allows us to meet all requirements.
The drives can be direct current or alternating current.
In addition, because we manufacture them ourselves, it is possible to combine different stroke control devices to suit your needs.
Thus, the limit switches can be:
Mechanical, integrated microswitches with an inverter contact (adjustable)
Magnetic, sensors fixed to the armature that read the magnetic field generated by a magnetic ring attached to the actuator nut (adjustable)
Inductive, inductive sensors fixed to the actuator sleeve (non-adjustable).
In addition to the stroke adjustment
The potentiometer provides an absolute reference, in which case the stroke length may be limited.
Incremental Encoder Mounted on the electric motor or gearbox, the encoder converts the motor’s rotary motion into digital electrical impulses.
What are the main components of electric actuators?
Control devices
Firstly, electric actuators can be combined with various stroke control devices.
Thus, the limit switches can be
- Mechanical, integrated microswitches with an inverter contact (adjustable)
- Magnetic, sensors fixed on the sleeve that read on the magnetic field generated by a magnetic ring fixed on the actuator nut (adjustable)Inductive, inductive sensors fixed on the actuator sleeve (non-adjustable)
In addition to adjusting the race control
- The potentiometer provides an absolute reference, in which case there may be limitations on stroke length
- Incremental encoder mounted on the electric motor or reducer, the encoder converts the rotary motion of the motor into digital electrical impulses
How to size an electric actuator?
First of all, to correctly size an electric linear actuator, it is essential to know some data of the application where the installation is required:
- Power supply available
- Load to move
- Useful Career
- Linear travel speed
- Service Factor
- Charging cycle
- Which remote to use
In addition, depending on the configuration you get, you have to take into account some factors that can affect its correct operation;
Environmental
conditions Possible radial loads
Finally, it should be borne in mind that electric actuators and gearboxes are devices intended to be integrated into more complex machines: they cannot therefore be considered safety components (within the meaning of Article 1 of Directive 89/392/EC and its addendum-EC Directives 91-368,93/44,93/68) they are not components whose purpose is to ensure, through its use, a safety function and the failure or malfunction of which would affect the safety and health of exposed persons.
Irreversibility and reversibility in electric actuators
Irreversibility means that linear actuators can maintain the position of an applied load in the absence of power.
Therefore, reversibility and irreversibility are determined by the influence of various factors, such as the wear state of the gears (running-in), the type of load, the presence of vibrations, the mounting position, the reduction ratio of the gears, etc.
The reversibility in an electric linear actuator limits its positioning accuracy and repeatability.
Therefore, it is possible to increase the irreversibility of the electric actuator with various measurements; Firstly, in the case of asynchronous motors, it is possible to install a self-braking motor, while in the case of permanent magnet DC motors, it is possible to short-circuit the motor connections when the actuator is not powered.