vertical micro power pack

Micro Pack

Delivering up to 5LPM from an 87mm body

HPR Reversible Power packs and HPU Uni-directional hydraulic Power pack for single and double acting actuators

standard hydraulic power pack

Standard Unit

Hydraulic Power units up to 55kW

Applications include:- Injection moulding machines, Auger Drives, Concrete moulding, Test Rigs and Drilling Rigs

vertical mini power pack

Mini Pack

AC and DC system to 30LPM DC Power packs for Tipper trucks, Tail lifts, Recovery Lifts and Trailer ramps etc AC Power pack hydraulics for Scissor lifts, Car lifts, Dock Levelers and Security barriers etc

Output Torque

When a Hydraulic Motor is being driven the Output Torque M(Nm) can be calculated by following these steps:

  1. Pressure P (bar), typical pressures for hydraulic motors would be up to 250 bar.
  2. Motor Efficiency, for hydraulic motors this is in the range 0.85-0.95.
  3. Displacement Vg, sizes for hydraulic motors range from 5cm3 to 250cm3

Then press M to calculate, this will be shown in the result box.

If the required Output Torque is known but the motor has yet to be sized then the Displacement Vg(cm3) can be calculated:

  1. Pressure P (bar), typical pressures for hydraulic motors would be up to 250 bar.
  2. Motor Efficiency, for hydraulic motors this is in the range 0.85-0.95.
  3. Output Torque M (Nm).

Then press Vg to calculate, this will be shown in the result box.

If the required Output Torque and Displacement are known but the system Pressure P(bar) has yet to be determined then it can be calculated:

  1. Displacement Vg, sizes for hydraulic motors from 5cm3to 250cm3
  2. Motor Efficiency, for hydraulic motors this is in the range 0.85-0.95.
  3. Output Torque M (Nm).

Then press Vg to calculate, this will be shown in the result box.

Useful conversions factors:

1kW = 1.34hp

1Nm = 0.737 lbf.ft = 141 oz.in

1bar = 14.5psi

1 cm3 = 0.061 cu.inch

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