My latest research project needs a small hydraulic pump, quite a bit smaller than a standard pump. Plan to drive it with a VFD/3phase motor. I'd like to get it running by next week so cheap and fast are the buzzwords.
-1/6 gallon per minute
-decent duty cycle (run for several hours at a time)
-1750 rpm would be nice (direct drive off a 3 phase motor)
-cast iron case highly desirable (aluminum doesn't hold up well to the environment
-adjust the output by VFD speed control (trying to avoid a needle valve and bypass)
I could derate one of these unitsI'd like to start with something smaller and with a cast iron case
Is there something from the vehicle area that might work better? Diesel injector pump? Power steering pump? Off the shelf commercial unit that I'm not finding???