How do you select hydraulic actuator?

pump selection requires many factors like the flow rate requirements, speed , pressure,cost ,maintenance, performance,reliability. step1: find out what type of actuator your are going to use depending on the type of loading .cylinder type actuator or a rotary type actuator like a hydraulic motor.

step2: find out the flow rate requirements depending upon the distance through which the load is to be moved in a specified time limit.

step3: find out the pressure requirements depending upon the magnitude of the load and the size of the actuator.now along with the flow rate you can find the power requirement of the pump and select the prime mover do drive the pump.

step4:find out the speed of the pump and along with flow rate calculations determine the pump size.

step5: gear ,vane and piston are the types of pump available for the fluid power applications.there are many subtypes available for these pumps.

gear pump= 500-3000 psi,1200-2500 rpm,efficiency 80-90 ,flow capacity 1-200 gpm

vane pump=1000-2000 psi,speed 1200-1800 rpm, efficiency 80-95, flow capacity 1-80gpm

piston pump=2000-12000 psi, speed 1200-3000 rpm, efficiency 85-98,flow capacity 1-200 gpm.

apart from these determine the power losses etc.,