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Old 03-13-2010, 02:30 PM   #1 (permalink)
Join Date: Jan 2010
Posts: 37
Default gravity box as dry fertilizer spreader

Thinking about making a dry fertilizer spreader out of a J&M 250 gravity box. The box has no running gear so I would bolt it on a bale fork and put it on the 8410 John Deere with duals. I would mount it so the spout was back and the spout would fall directly onto the spinners. I would also put a hydraulic cylinder on the door so I could shut it from the cab

The reason I'm doing this is so I can have the weight on the tractor instead of 2 or 4 dinky implement tires to reduce compaction. The 3 point on an 8410 is rated for 11,000 lbs so I figure I could put on 3 or 4 ton on anyway.

The biggest problem I can see is having the fertilizer ball up and screw the rate up. Next problem is not being able to the spout opening on the back of the machine. The commercial spreaders I've seen are arranged so that you can't see them so maybe it's not a big deal. I've never ran a spreader before...always hired the co-op to do it.

Would the dry fertilzer run out of the gravity box precisely or would it tend to bridge and ball up? I could probably install some agitators of some kind but I don't know where to put them. Thanks for all comments on this.
jradway is offline   Reply With Quote Quick reply to this message
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Old 03-13-2010, 02:51 PM   #2 (permalink)
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Location: Crookston, MN
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Default Re: gravity box as dry fertilizer spreader

You are gonna get no where near the even feeding you get with a chain in the bottom. Great idea untill you dump the first ton of fertilizer on 1 acre.
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Old 03-16-2010, 01:01 AM   #3 (permalink)
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Default Re: gravity box as dry fertilizer spreader

Yeah, I wouldn't think it would feed very evenly. If you were doing any bouncing around, that would help keep it at the gate, but still. . .In my opinion, a 5 ton spreader on 4 good implement tires isn't all that bad, it's not like you drive in all the same spots as the rows over and over again.
tbone95 is offline   Reply With Quote Quick reply to this message
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