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Another Pivot ??
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FREEDGUY View Drop Down
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Joined: 15 Apr 2017
Location: South West Mich
Points: 5396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote FREEDGUY Quote  Post ReplyReply Direct Link To This Post Topic: Another Pivot ??
    Posted: 15 May 2021 at 6:47pm
How big of a concrete pad is required for the "anchorage" point ? What is the biggest "stress" on the anchor point ?
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kjs View Drop Down
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Joined: 24 Jan 2020
Location: NE Nebraska
Points: 47 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kjs Quote  Post ReplyReply Direct Link To This Post Posted: 15 May 2021 at 7:17pm
About 8 x 8 With post holes in each corner.  
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DMiller View Drop Down
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Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 33972 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DMiller Quote  Post ReplyReply Direct Link To This Post Posted: 15 May 2021 at 7:29pm
Water comes in at pivot, Corrosion, Erosion from sitting still & dry, while running is only a modest amount of torque on them.
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JohnColo View Drop Down
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Joined: 03 Apr 2020
Location: Niwot, CO
Points: 1263 		Post Options Post Options   Thanks (0) Thanks(0)   Quote JohnColo Quote  Post ReplyReply Direct Link To This Post Posted: 17 May 2021 at 6:25pm
My Mini Pivot, 610' long has a pad about 6'x6'.  A few years ago a 120MPH gust blew it halfway over,  Had to replace some of the pivot pipe but got it back down level.  Make a point to always park it running east and west as the strongest winds seem to come from the west.
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FREEDGUY View Drop Down
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Joined: 15 Apr 2017
Location: South West Mich
Points: 5396 		Post Options Post Options   Thanks (0) Thanks(0)   Quote FREEDGUY Quote  Post ReplyReply Direct Link To This Post Posted: 30 Oct 2021 at 8:03pm
Is there a "limit" on how many spans a pivot can have? I drove past a field that had 9 spans (this area has fields a mile + long) and wondered what the limitations were for length. Thanks
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Joined: 24 Jan 2020
Location: NE Nebraska
Points: 47 		Post Options Post Options   Thanks (0) Thanks(0)   Quote kjs Quote  Post ReplyReply Direct Link To This Post Posted: 31 Oct 2021 at 10:52am
The limit on the spans is how much water can you supply to keep crop growing.  I have seen a pivot a half mile long, 1750 gallons per minute. But in a dry year it can't pump enough water to keep the crop supplied.  You would need about 3000+ gallons per minute to keep up.
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