Hydraulic Formulas
Torque, HP, Speed Relations in Hydraulic Pumps & Motors
T = (HP x 5252) / RPM HP = (T x RPM) / 5252 RPM = (HP x 5252) / T
Definitions
T = Torque, foot-lbs
RPM = Speed, revs./minute
HP = Horsepower
Hydraulic Power Flowing Through the Pipes
HP = (PSI x GPM) / 1714
Definitions
HP = Horsepower
PSI = Gauge pressure, lbs/sq. inch
GPM = Flow, gallons per minute
Force Developed by an Air or Hydraulic Cylinder
F = A x PSI
Definitions
F = Force or thrust, lbs
A = Piston area, square inches
PSI = Gauge pressure, lbs/sq. inch
Inch & Millimeters (MM) Conversions
MM = inches x 25.4
Inches = MM x 0.03937