Abstract: A mobile machine for lifting massive objects which includes a primary hydraulic cylinder whose piston chamber is hydraulically connected on a high pressure end thereof to a high pressure end of one or more secondary hydraulic lifting cylinders for operation of the lifting cylinder(s) in unison to lift the object. The total maximum effective volume of the piston chamber(s) of the secondary cylinder(s) is at least equal to the maximum effective volume of the piston chamber of the primary cylinder. The sum total effective cross-sectional area of all of the secondary cylinder piston chambers is greater than the corresponding cross-sectional area of the primary cylinder chamber to provide an output lifting force of the secondary cylinder(s) which is greater than the input force applied to a piston rod of the primary cylinder necessary to transfer hydraulic fluid from the primary cylinder to the secondary cylinder(s) to produce the enhanced output lifting force.