Posted by Triplerange on November 30, 2007 at 08:41:11 from (65.173.83.70):
In Reply to: Still thinkin !! posted by TGIN on November 30, 2007 at 03:06:50:
Actually, they don't turn very fast at all. I just watched a professional contractor drill some 24" holes...I'm an engineer...Those pto units are speed reduced...I think about 2:1 or something like that. Your hyd. motor will need to be sized according to your system flow. I've been thinking about your idea though...you could use the bucket cylinder lines and find some hyd. quick connects for the hoses. If you have the model pump you could estimate your flow based on pressure. You'd have to get a gauge and check the pressure of the system. You may be able to get the flow by timing how long it takes the cylinder to go lock to lock...and getting the size of cylinder (length and diameter). Once you know the flow...go online to Parker Hanefin and see if you can spec a hyd. motor per your desired shaft RPM. I think you'd want an RPM of around 200 or so. Then you got to figure out how to mate the motor and gearbox and mount your contraption which needs to be able to bend in both horizontal planes. Hope I've given you some direction....cool project!
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