Domestic thresher is one of the important machine in Turkey. The improvement possibilities of their drum construction for energy saving investigated. For this purpose, three new toothed drums designed and manufactured. Experiments carried out for energy consumption for two variety of wheat. The average power requirements of all experiments determined as 2.31 kW for original toothed drum, 2.16 kW for type A toothed drum, 1.98 kW for type B toothed drum, and 1.76 kW for type C toothed drum. Specific energy consumption saves 4.7%, 14.0% and 21.3% respectively in A, B and C type toothed drums as an average of all experiments compared to the original type toothed drum. Specific energy consumption (SCE) saves 4.7%, 14.0% and 21.3% respectively in A, B and C type toothed drums as an average of all experiments compared to the original type toothed drum.

Keywords : Power Requirement; Specific Energy Consumption; Threshing Drum; Wheat Threshing