Abstract: A press partner system facilitates the use of a plate-loaded press machine. The system comprises a press partner clamp apparatus and a press partner sleeve device or apparatus, configured for installation on the press machine to modify the range of motion of a machine arm thereof. The clamp apparatus comprises a C-shaped lower portion attachable to a side arm contact rod of the machine arm, an upper block portion, and at least one clamp block extension. The press partner sleeve device or apparatus comprises a lower skirt portion attachable to a bumper of the press machine such that the press partner lower skirt portion fits over at least a portion of the bumper and the press partner sleeve device or apparatus extends beyond the bumper. The system may include a unitary press partner sleeve device, and/or a press partner sleeve apparatus comprising a plurality of components and a securement strap.