Is Portability an Important Consideration?
Will the hydraulic pump be used intermittently, or will it need to provide high-cycle operation? Does the application require that the hydraulic pump be capable of starting under load?
Is fluid heat build-up a factor in your application? High cycle SPX pumps may require a larger capacity oil reservoir for cooling. Also, if you are using large displacement cylinders, the reservoir capacity must be sufficient to fully extend the piston of the cylinder.
Will the application require large displacement or multiple cylinders? Reservoir size and pump output levels will be factors to consider.
Does the working environment require a pump having a low operating noise (dBA) level?
Must the pump operate in a spark-free environment?