Design of Mechanical Union Peeler Equipment

The production process that includes pre-harvest until postharvest requires the support of various effective facilities and infrastructure, development equipments and agricultural machinery is among the way of increasing agricultural production. To support this we need a mechanical onion peeler driven by electricity. The study was conducted by literature study and observation on the onion peeler, and then to design the coupling components of the  mechanical onion peeler. The effective capacity of the tool was 14.15 kg / hr. The value of the effective capacity of the tool is larger than the onion peeler driven by human power. Basic costs to be incurred in peeling onions with this tool was Rp. 751,904 /kg in the 1 st year , Rp. 647,531 /kg in the 2 nd year , Rp. 624,771 /kg in the 3 rd year , Rp. 613,441 /kg in the 4 th year , and Rp. 606,609 /kg in the 5 th year . This tool will reach the break even point when the value has peeling corn amounted to 8624,85 kg/year. Net present value of these tools with an interest rate of 6% Rp. 14.553.501,5 whichmeant that the business was feasible to run . The internalrate of return was 40,93%. Keywords : design equpments, mechanical peeler, onion .