eng Science and Education Publishing American Journal of Mechanical Engineering 2328-4110 2017-12-15 5 6 316 320 10.12691/ajme-5-6-17 AJME20175617 article Michal Kelemen michal.kelemen@tuke.sk 1 Miroslav Pastor 2 Ivan Virgala 2 Alexander Gmiterko 2 Department of Mechatronics, Technical University of Kosice, Faculty of Mechanical Engineering, Kosice, Slovak Republic Department of Applied Mechanics and Mechanical Engineering, Technical University of Kosice, Faculty of Mechanical Engineering, Kosice, Slovak Republic Actuators like PZT or GMA have small stroke and high force at their output. There are several applications, where is necessary to enlarge small stroke. This paper deals with stroke amplifiers. Next part of paper shows the application of amplified actuators. http://pubs.sciepub.com/ajme/5/6/17/ajme-5-6-17.pdf amplifier positioning actuator stroke force displacement