Horse power for forage harvester - The Combine Forum
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post #1 of 6 (permalink) Old 08-13-2019, 06:29 PM Thread Starter
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Horse power for forage harvester

Any opinion for the appropriate hp of a forage harvester when you has to cut 18000 tons from 300 hectares in15 days with 12 hours work

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post #2 of 6 (permalink) Old 08-13-2019, 08:29 PM
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Wow that’s a big crop! Where you from? If my math is rite that 24.3 tonnes an acres!


Last edited by Mags; 08-13-2019 at 08:32 PM.
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post #3 of 6 (permalink) Old 08-13-2019, 08:50 PM
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18,000 tonnes/ (15 x 12) hours
18,000 tonnes/180 hours
100 tonne/hour

What buffer factor do you need for end of row turns, moving fields etc and peace of mind on having sufficient capacity up your sleeve (+30%, +50%)?

You should be able to identify some machine options from there.
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post #4 of 6 (permalink) Old 08-13-2019, 09:35 PM
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The top of the line JD 9900 SP forage harvester at 956hp claims to be able to chop 400tons (lower case "t" tons)/hour. Using that as about the most you would be able to harvest... 2.36hp/ton/hour x 100ton= 236hp. Realistically you would need more than that. This file might help. https://ucanr.edu/sites/kern22/files/98859.pdf
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post #5 of 6 (permalink) Old 08-13-2019, 11:54 PM
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100 tons an hour isn’t that much for a self propelled chopper. The problem comes with having to haul the material away from it hour after hour. Any travel distance significantly increase the number of hauling items needed. A big Claas or krone is capable of 3-400 tons per hour but then you need to be able to move15-20 or more loads per hour depending on the size of your hauling rigs then if you have a bottle neck at the unload site things grind to a halt quickly
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post #6 of 6 (permalink) Old 08-14-2019, 01:26 AM Thread Starter
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Quote:
Originally Posted by Mags View Post
Wow that’s a big crop! Where you from? If my math is rite that 24.3 tonnes an acres!
Greece
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