Additional Hydraulics

[ch47dpilot]

I have a Kubota L3400, the hydraulics is rated at 6.3 gal/min. I was looking at hydraulic motors on Surplus center and most run about double that. Other than a PTO driven Surplus Center - 9.9 CU IN PRINCE HC-PTO-1AC PTO PUMP CI 540 RPM is there other options people have used. The pump is about $500 plus I'll need aux tank,filters, hoses ect.

 

[ch47dpilot]

I have one other question on this topic. If I run a lower flow rate will I lose torque? My understanding is PSI creates torque and flow will affect RPM. The motors run about 10x faster than I need. Can I just reduce the flow from 6.3 to what ever I need and not loose torque? Assuming PSI can be maintained at 2000psi?

 

[KWentling]

I have one other question on this topic. If I run a lower flow rate will I lose torque? My understanding is PSI creates torque and flow will affect RPM. The motors run about 10x faster than I need. Can I just reduce the flow from 6.3 to what ever I need and not loose torque? Assuming PSI can be maintained at 2000psi?

You're understanding is correct. You will loose some torque at slower flow rates because efficiency is reduced. 1/10 of rated flow is kind of extreme though. Its always better to run a motor close to its rated rpm. I expect there is a chart somewhere that would tell you what to expect out of that motor with reduced flow.

Kim