Collaboratively, Bosch Rexroth and Nikkiso/ACD developed the utilization of a long-stroke, Primary Controlled Drive solution to compress LH2. A long-stroke approach to reciprocating pumps offers pumping performance advantages over a conventional approach. Developing a drive system for LH2 compression, which was not the traditional solution built by Nikkiso/ACD, required a close and cooperative discovery process. Bosch Rexroth, in conjunction with the specification prepared by Nikkiso/ACD, adapted their Self-contained Hydraulic Actuator, or Primary Controlled Drive, (PCD) technology to achieve force, stroke, cycle, and power optimization targets for the project. This solution scales easily to accommodate output requirements, and can provide higher pressure and flow designs than the conventional approach. The presentation will provide an overview of the drive concept, inclusive the cryo-pump actuator, a compilation of harvested data from the collaborative solution, and comparative attributes of the PCD contrasted to Nikkiso/ACD traditional compression solutions.