Author(s): M. SAMADDER AND D. SAHA

Abstract: Pedal operated paddy (POP) threshers are widely used in the rice growing countries. Pedal operated paddy thresher is most popular among the farmers of West Bengal. The present study deals with performance evaluation of the available threshing machines. Three (Arjun, Mayur-1 and 2) commercial POP threshers were evaluated under same operational condition (field condition) for same variety of paddy. The feed rate of the threshers were 318, 192 and 260 kg h-1 respectively with a threshing efficiency 99.6, 99.5 and 99.55 percent respectively while the pick rate of heartbeat of the labour were 132, 158 and 151 per min after 12, 15 and 15minutes. The performance and measurement of the parts of the paddy thresher is different for different threshing machines. Arjun model is best suited for threshing as cardiac cost of operation is low and feed rate of paddy is more.

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