The aim of the bachelor thesis is a 3D model and a proposal of a steering pneumatic robotic manipulator.The work is divided into 2 parts: theoretical and practical part. In the theoretical part, there are sumed findings of pneumatic actuators, production of compressed air, spreading and regulation of compressed air and pneumatic steering. The practical part deals with a proposal of a steering arm. It also contains a description of certain functional parts of a steering arm, descriptional diagram of connecting electro pneumatic diagram and a design of 3D model of a steering arm with functional kinematic moves.