The Chaff Conveyor

Chaff and waste grain-conveyor for combines:-

Normally when combining, chaff and waste grain from the combine’s riddle section is spread on the ground.    By doing this, the wastes are hard to pick up from the ground. With a chaff and waste grain conveyor mounted on the combine, the material is collected and dumped on top of the straw. The straw, chaff and waste grain are then baled together and can be used as feed, bedding material or fuel. In investigations with several combine manufacturers taking part, the wastes not utilized amount to 10-25 % of the grain yield. Today the development of combines is leading to a more intense treatment of the straw, which decrease the utilized amount of waste even further.

  By collecting the waste, several advantages can be gained. The grain yields increase due to less waste grain and weeds from last years crop. Less spraying of herbicides and / or tilling, as most of the waste grain and weeds are taken away from the field when baling. This is much appreciated in systems with reduced tilling and “ecological” crop farming. Also, the feed value and the density of the collected material will be higher, if the chaff and waste grain are included. Another advantage is that less dust will be produced, as the transport of the chaff and waste grain is done without fans.

The drawing shows how the chaff and the waste grain is dumped on top of the straw.

Advantages with the chaff and waste grain conveyor:-

•     More feed from the acreage.

•     More energy from the acreage (when burning the waste).

•     Less waste grain and weeds in next year's crop.

•     Heavier bales, giving less volume to transport.

•     Less spreading of weeds i.e. better economy for you, and a better environment for everybody.

Technical description:-

The equipment consists of a hydraulically driven chain conveyor, oil tank with pump, gear box and a pilot valve. The robust construction leads to lower maintenance costs.

The equipment can be assembled on all types of combines.

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