A thorough comparison of the two Revolution rotational models. The 180 uses a subframe with a chain-driven hydraulic motor for a strong, positive 190-degree rotation — ideal for tractors that need the ground stability. The Swinga uses a geared-down hydraulic slew ring with no subframe, giving it superior access in tight spots like between trees, beside buildings, or in retaining corners where offside interference would block the 180. Same mast, same reach, same hammer options, within 10kg of each other — but each built for different working conditions.