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Open Drum Power Thresher: a Successful Technology of Paddy Threshing

MA Zami
Principal Scientific Officer and Head
Workshop Machinery and Maintenance Division, Bangladesh Rice Research Institute, Gazipur-1701

Abstract/ Executive Summary:

Bangladesh is a land of agriculture but the use of machinery/technology in agriculture is very limited. Threshing of crops are the most important agricultural operations which demand considerable amount of labor. Availability and cost of labor during threshing is the serious problem. Farmers used to traditional method to thresh paddy which is costly and laborious. Fifteen percent of total production cost is spent in threshing operation (Hussain, 1988). Farm Machinery and Post-Harvest Technology Division of Bangladesh Rich Research Institute (BRRI) has developed an easy technology for threshing paddy that is open-drum thresher. For rice, mechanized threshing offers many advantages over manual threshing in terms of increased efficiency, reduced drudgery, cost and labor savings. Threshing cost by traditional method is Tk.766.00/ton whereas; it is needed only Tk.102/ton by open-drum thresher. So it can save Tk.666.00/ton paddy threshing.

Keywords: Open drum thresher, Paddy, Labour, Cost

Location: Bangladesh Rice Research Institute, Gazipur-1701

Start Date:

End Date:

Program Area: Farm Mechanization

Commodity: Thresher

Objectives:

To reduce the threshing loss
To reduce the threshing cost and labour
To increase the threshing efficiency and capacity

Methodology:

Threshing is one of the most important operations of grains. It is costly, laborious and time consuming process. Availability and cost of labor during threshing is also the serious problem. Farm Machinery and Post-Harvest Technology Division of Bangladesh Rich Research Institute (BRRI) has developed an easy technology for threshing paddy using the locally available materials that is open-drum power thresher to remove/minimize those problems. It is made of iron sheet whose length is 152 cm and diameter is 43 cm. It consists of diesel engine, threshing drum and V-pulley. It is operated by diesel engine (Z-175 F, rpm: 2600, Made in China). It can thresh aus, aman and boro paddy. Its threshing capacity is 400 kg paddy per hour.

Source of Information: Krishi Barta 25, No.2, May-June, 2004

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It is easy to use and operate; and even women can use this machine.
Threshing cost is low.
It can be operated in house during rain.
Wet bundle can be threshed too.
More than 400 kg paddy can be threshed.
Straw is not damaged during threshing as a result it is used in roof making.

Knowledge Management: Report/Proceedings