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ID number:190139
Published: 15.04.2010.
Language: English
Level: Secondary school
Literature: n/a
References: Not used

Grain harvesting machines have long history, development started in 19th century.
Combine harvester has to be suitable for crop. Productivity should be optimal, to harvest crop in optimal time and term.
Important performance factors are throughput capacity, looses, grain quality, ease of operator use and economics.
Removable heads - header
Threshing mechanism
Straw walkers
Cleaning shoe
Clean grain taillings and elevators
Grain bin and unloading auger
Other attachements.
Threshing – grain separation from crop
Threshing occur when crop is mowing between the surfaces of a rotating cylinder and open – mesh concave.
There are two kinds of threshing mechanism – classical and rotary. …

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