Posted by IanC on February 27, 2018 at 12:45:22 from (76.204.115.245):
In Reply to: Planter hydraulics posted by caterpillar guy on February 27, 2018 at 12:26:19:
You are missing nothing. GPM is speed of lift, PSI is force of lift. Take weight of loaded planter divided by the number of lift cylinders gets you the force for each cylinder needed to LIFT the machine, then determine the volume needed to move them at the speed you need it to lift at. Also you will need a machine big enough that the tail doesn't wag the dog, for 16 rows I wouldn't go anything smaller that a 150hp class machine (4840, 1370, 2-135/155, etc.). You also need enough hydraulic flow to power the blower for the row units.
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