The linear transport arms work on both vertical and horizontal planes and with the same precision in compact and narrow units. There is just a slight difference in the technicality of operation. The vertical movement is created by the means of a double acting piston that is located at the unit base. Horizontal movements are produced by a standard piston. Such design reduces the number of moving parts. The horizontal and vertical movements are on ball-bearing guide bushes. End jarring is going to be eliminated by self-adjusting shock absorbers. Flow rate controllers mounted directly on the arm adjust the advance, up and down speeds. Linear arms are 2 separate low-operating positions for picking up and setting down components in tight working spaces.