Posted on: 26 January 2017
Extended actuators come in a variety of different styles, including double-quick, quick-mount, and unmounted options. However, even beyond this, there are a number of features that separate actuators from one another. Before investing in a new unit, make sure you know what some of these changes are and what to look for.
Examine the level of impact environmental elements may have on the function of the actuator. This is an especially important step if the unit will be housed in an area with high moisture levels. If you will be operating in this type of environment, look for actuators that don't have metal covers, as the metal is subject to corrosion and rust with prolonged moisture exposure.
The better option would be to choose an actuator with an alternative material, such as plastic. If this is not available, at least look for an option that is designed with an accordion style cover as this can help shield the metal surfaces from moisture exposure and damage.
When investigating the size of an actuator, the types of applications you plan to complete are most important. Start the selection process by focusing on how quickly you need the unit to travel. The reason this is important is that the shorter you need the travel time to be, the longer the unit's lead needs to be, as well as the larger the size of its motor.
However, keep in mind that the longer the lead, the greater the likelihood of declined accuracy. Instead of choosing a unit that is sized to accommodate your speed needs on the high end, consider selecting a unit that is closer to your average speed.
Actuator systems are available in a range of accuracy levels, with ratings including high, standard, and precision. Generally, those actuators with a precision rating will offer the highest level of accuracy. However, it's important to analyze accuracy across the board.
It's not uncommon for actuators to have one rating in one area, such as their repeatability, and have a different rating in another area, such as for backlash. You first need to examine which areas are most important to you, in order to determine where you need the greatest level of accuracy.
It's important to take your time when choosing a piezo extended actuator. While the above-mentioned tips can help, asking for assistance from a technician or retailer can help you have greater confidence that you are making the right selection.Share