advice converting silage feeder to straw shredder

   / advice converting silage feeder to straw shredder #1  

Renze

Elite Member
Joined
Oct 24, 2003
Messages
4,946
Location
the Steernbos (Holland)
Tractor
Zetor 3011, Zetor 5718
I can buy an old 3pt mounted cutting/feed dosing bunker for 150 Euro. I think it will be a good base to start from, building my bale shredder.
Mostly the loading/cutting arm is either bent or the saws are worn out, but that's no problem because i will only use it for straw bales.
FYI, these buckets have either a comb, or a saw cutter on a load arm on the back end, a slat chain on the bottom that transports the silage sideways and a hydro drive drum that loosens and spreads the material in front of the cows.

I was thinking of, instead of 3pt mount, making it trailed and pull it sideways over the pathway in front of the horse stables. The loosening drum would be on the front end, throwing the straw into a turbine chopper.

I am just not sure on how to make this: Mowers have a cutting sped of 80 meter per second, or 270-300 km/h blade speed. a 1,5 meter diameter cutter turbine driven at 1000 rpm would achieve this.

Now comes my actual question: Should i make this cutter/blower like a giant lawn mower with 4 or 6 blades that are mounted under an angle so they move the material in axial direction, like a lawn mower ?
Or should it be like a traditional silage blower, straight blades that throw the material in radial direction (centrifugal) with flail fingers mounted to the ends of them, that smash the straw through stationary blades (of an old self loading hay wagon i have around)
I am afraid that the lawn mower design would not have enough air flow to blow the straw out of the turbine chamber, through a pipe 2 meters high, and max. 5 meters away into the cubicles.
And i'm also afraid that a positive cutting action with flails and stationary counterknives will consume so much power that my 25 hp 2011 (the only tractor narrow enough to drive on the path in front of the stables) will not be able to drive it...

That 2011 did get the 6 m3 Veenhuis manure tanker to normal road speed last saturday, but for continous PTO power i dont rely on that fact...

Does anyone have pics of a combined chopper/blower for bale shredders ? Off course this should be a simple setup so i can make one at home, eventually with some laser cut parts to get precise dimensioning so it doesnt need additional balancing.
 
   / advice converting silage feeder to straw shredder #2  
Renze Ive seen a few small bedding chopers that chopped smaller bales made from the flail assembly off a the back of an old combine it was run off a small 4 horse power Briggs motor it tossed it about 15 feet into the beds. but the only thin is that they are onle 2 to 3 feet wide.
 

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