John Deere Combine Harvester 28/03/2008
Owners of the new range of T series John Deere combine harvesters are finding that the new machines fill the gap in the companys family of farm equipment. The T-series combine harvesters were introduced when the demand for higher output machines grew and the company saw a gap in the market. The new John Deere combine harvesters are compact and economical and mostly used to bale straw rather the large rotary harvesters that are used to cover large acreages. The T-series are effectively straw-walker based machines with some additional threshing components. The higher threshing productivity was achieved when John Deere added a Tangential Tine Separator to their threshing set-up. This attachment is a laterally mounted toothed rotor that combs the straw to extract grain prior to it reaching the straw walkers.
A spokesman for the new John Deere combine harvester Ed Stephenson said, We believe weve now got the highest capacity walker combine in the industry, weve increased output but managed to ensure the machine is gentle on straw. The difference with this development that other companies like New Holland have been using for some time, according to John Deere is the way the machine handles the straw as it is propelled through the machine. Apparently the key to gentle straw handling is that rather than using the conventional under-shot beater as the crop leaves the main drum and concave, an over-shot unit is used. This avoids the smashing process of the straw as material follows a meandering S-shaped course through the machine instead of making sudden 90degree turns. The crop then ends up on the straw-walkers in just seven steps rather than the 11 of Deeres current WTS machines.