These compact mechanical linear actuators are preassembled and ready to use. The two synched carriages move along with the rotation of the single shaft. They can be used with simple manual adjustments without complex processes of parts selection, design and assembly. The internal parts are protected from dust by an aluminum profile body and dustproof sheet. Compact size is suitable for narrow spaces. Horizontal and vertical use. Synchro-use actuators connect at linkage shaft to be used in pairs. Link MAU3222DS-R actuators with MAU3222DS-Y actuators. Link MAU3222DS-L actuators with MAU3222DS-Z actuators. The body is made from A6N01 aluminum. The end plates are made from black plastic. The shaft is made from 1045 steel with a black oxide finish.