Hydraulic System for Cement Mixer

Many Hydraulic Circuit Designers were not trained in Mechanical Engineering but will happily design a circuit if the force parameters are given. Most, like my background, are mechanically inclined persons who ot weary of dead end engineering employment and fell into a sales job for a Fluid Power Manufacturer or Distributor and learned about Fluid Power at company training schools, OJT or what is commonly called the College of Hard Knocks. I know that sounds ridiculous but that has been and still is the way most learn to design Fluid Power circuits. There are only a couple of schools in the States that teach Fluid Power and probably not over a dozen in other parts of the world.

Over the years I have worked with a lot of Mechanical Engineers and they always gave me the Force Required in Pounds, Tons or other, the torque necessary to turn an object, the speed of each actuator or the machine cycle time, the actuator stroke or RPM, the maximum system pressure they were comfortable with or had a company spec for and any preference for the components manufacturer. On some occasion there was other questions I had such as what actuation could overlap and other pertinent information on a given circuit.

I never had a problem getting that information since they had to figure out all of it to have a workable machine.

I said all that so you would be aware that you will probably not get much feedback unless you can give information on forces or until you hire someone who can get the information from the input you've given.

Probably the easiest way to get over this problem would be to investigate the power needed to turn comparable sized units already out there.

Most are driven by a gas engine, gear reduction, then a belt drive, finally going to the drum ring and pinion.

Once you have a couple to compare to, then you'll get a rough idea of required power. Dont forget to incorporate a robust cooling and filtering system into the circut.

OR simply re-engineer the wheel

Mr. BudT is right. But if you do not have extra 2-3 years for education you can find most suitable Hydrauic Cement Mixer and make exact copy of it, like Chineese do! They are even reached the space by this method.