It doesnt take as much power as one thinks to run a hyd belt conveyor. A typical 14'-16' ft conveyor runs on 4 or 5 gpm of oil Pressure is usually in the 400-500psi range and conveyor speed is generally around 350ft min. Now you can start doing the math to decide what size motor you need to achieve those number. The speed of the conveyor will be determined by the size of the conveyor wheel. ex. lets say a conveyor belt wheel with the belt measures 12 inches. That would mean it travels about 3.1ft ft for every revolution. You want to travel 350ft a min so you would divide 350ft/3.1 which would give you, let me pull up my calculator, = 113 rpms to get the speed you want. Now you can choose a motor that will turn 113rpm with 4-5 gpm of oil. A gpm of oil is 231cuin. per in. mutiply times 5 for 5gpm or 4 for 4gpm of oil flow. Calculator again, 4gpm x 231cuin of oil= 931cuin of oil permin.. To get the size motor you would need to use that many cuin of oil for the speed you want to run you would divide the 931cuin per min by 113rpms=8.23cuin motor. I can tell you, most of those small conveyors dont use 8.23cuin motors to turn the conveyor. They will use a smaller motor that turn faster and gear it to get the speed they want.. Anyways, I am not designing a conveyor, only trying to give you some ideal of how to do the math to do your own design. Only you know how much oil flow and pressure you have available, and how longxwide of a conveyor you need to build and how fast you want the conveyor to turn.
https://www.surpluscenter.com/Hydra...u-in-Ross-MAF16011-Hydraulic-Motor-9-9794.axd
