3. Device for forging rings - variant 2 The functional principle of variant 2 is an additional hydraulic mechanism. A movable crossbeam pushes the plunger of the additional mechanism. This causes an increase of pressure and motion of the output member which is forming the ring. In this variant there is no limit to the maximum diameter of the ring. The functional principle of variant 2 is an additional hydraulic mechanism. A movable crossbeam pushes the plunger of the additional mechanism. This causes an increase of pressure and motion of the output member which is forming the ring. In this variant there is no limit to the maximum diameter of the ring.