Two-part piston hydraulic tool

A hydraulic actuator for a hydraulic tool, the hydraulic actuator comprising:

• a cylinder that includes a peripheral wall and a first wall integrally formed with the peripheral wall, the first wall defining an opening;
• and
• a piston moveably received within the cylinder, the piston including a first piston piece that extends through the opening from a first end and a second end and a second piston piece that is coupled to the first piston piece at the second end,
• wherein the first wall and the second piston piece define a first chamber, and
• wherein the first end of the first piston piece contacts the first wall to limit movement of the piston in a first direction caused by fluid being supplied to the first chamber.

A hydraulic tool, comprising:

• a housing;
• a working head coupled to the housing;
• a hydraulic actuator comprising:
• a cylinder having a first peripheral wall extending between a first wall and a second wall to define an internal volume, the first wall including an opening, the second wall being defined by a cap coupled to the first peripheral wall;
• a ram moveably disposed within the cylinder, the ram including:
• a rod extending through the opening in the first wall from a first end positioned outside of the internal volume to a second end positioned inside the internal volume,
• a piston head coupled to the second end of the rod and disposed within the internal volume to define a first chamber between the first wall and the piston head and to define a second chamber between the piston head and the cap,
• a flange at the first end of the rod and positioned outside of the internal volume, the flange engaging the first wall to limit movement of the ram in a first direction caused by fluid being supplied to the first chamber;
• and
• a pump positioned in the housing to supply fluid to the first chamber.