Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Hydraulic Pump Motor Sizing

Motor size vs. flow rate, shaft torque, shaft power and hydraulic power.

Equations for hydraulic pumps:

Flow rate

Q = D n / 1000                                     (1)

where

Q = flow rate (l/min)

D = displacement of piston (cm 3 /rev)

n = revolutions (rpm)

  • rev = revolution
  • rpm = revolution per minute

Shaft Torque

T = D p / 20 π                               (2)

where

T = torque (Nm)

p = pressure (bar)

Shaft Power

P s = T n / 9554                            (3)

where

P s = shaft power (kW)

Hydraulic Power

P h = Q p / 600                           (4)

where

P h = hydraulic power (kW)

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter


















































6.6.11

.