Vertical crankshaft forging presses are designed for precision die forging and calibrating large series, large dimensions and
power demanding forgings. Forming is carried out in several die cavities with increasing complexity, for example, intended for
the aerospace and automotive industries. Transfer of vertical forging press workforce is realized between crankshaft and ram
through the inserted connecting rod and coupling or sliding joint. The accuracy of these presses is directly related to their
stiffness. Designers are therefore looking for ways to increase the stiffness. One of the possibilities is to increase the rigidity of
the transmission of power from the crankshaft to the forging. The subject of this paper is comparing the conventional press with
power transmission using the crank mechanism and the press with yoke mechanism.