Kilbros gravity boxes, How much they hold ?

[RayP(MI)]

I have two Killbros gravity boxes, recently acquired from father-in-law's estate. Ended up filling them with oats this harvest. Wondering how much they hold.

1. This one is a model 350. Top of box dimmensions are 10 ft long, 7 ft wide, 2 feet deep, with tapered part below. All four sides taper in including the door side. No extension sides on top of box.

2. Has no model designation, is smaller than the 350. This is the same size as most small gravity boxes, common all over the midwest Top of box dimmensions are 10 feet long, 6 feet wide, and approx 17 inched deep. Bottom tapers front, back and one side. Door side is vertical. No extension sides on top of box.

 

[RickB]

200bu for the #350. Probably 150 for the other one.

 

[Anonymous-0]

Ray, this is a math problem, not an implement one (;>). A bushel is a unit of volume, so figure the vol. of a square box, subtract the volume of the triangle tapered part. Then realize that you are almost never able to get 100 bushels in a 100 bushel wagon, all grain has an ideal moisture and weight per unit of volume(56# for corn/wheat, 60# for soybeans, 38#? for oats).

 

[RayP(MI)]

Thanks, Rick! I was guessing 125 for the smaller one.

 

[sd pete]

I had a pair of the 350"s. Mine had the factory side boards and with good quality dry corn they would hold 250 bushel. With heavy oats I am thinking in the neighborhood of 350 bu. Without the extensions maybe 180 bu of corn.

 

[paul]

The internet has just about everything these days..... Perhaps one of these sites will help you:

http://grapevine.abe.msstate.edu/~fto/tools/vol/gravitywagon.html

http://www.onlineconversion.com/object_volume_gravity_wagon.htm


--->Paul

 

[Stan - Florida]

Wow, oats must be a lot heavier than 50+ years ago...we always figured 32 lbs. per bushel.

Seriously, has something changed in oats, or is it the way they're measured?

Stan

 

[Anonymous-0]

With Minnesota and J&M wagons, the number is a rough estimate of what they hold- if they are piled to the hilt!. Remember that bushel capacity is a function of volume- doesn't matter which grain is inside, although test weight does figure in. But a bushel is a bushel, as long as the moisture and the test weight are up to standard.

 

[sd pete]

A bushel of oats is still 32 lbs. Oats can weigh up to 40 lbs. depending on variety and weather factors. Good milling quality oats needs to be 36 lbs.

 

[RayP(MI)]

Had mine tested today - 33#/bu 12.7% moisture..

 

[Stan - Florida]

Ray,

Thanks for the reply.

Stan

 

[Stan - Florida]

Pete,

Thanks for the reply.

Stan

 

[Leroy]

125 level full was the rating for the early model beds, the 300 bed would hold about 165 bu level full and there were the 200 & 250 beds that were smaller than the 300 and all were straight sided. The 350 was the first and smallest with the slopping side.

 

[Nathan (SD)]

I think Killbros model nos are the cubic feet of volume.