ABSTRACT
Method to assess the performance of a handmade low output corn pre-cleaner

Ricardo Muñoz C.1
 

A handmade corn pre-c1eaner was tested under a proposed methodology, to study the effect of combining the angle ofthe propeller and the exhaust's section ofthe hooper, on the pre-cleaning efficiency and grain losses parameters. The best combination was 30 and 45 cm2, determining an efficiency of 76.8% and a loss of 0.0027 kg grain per kg of grain fed to the machine. The mean output of the machine was 227.5 kg/ha.

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1 Estación Experimental La Platina (INIA), Casilla 439. Correo 3, Santiago, Chile.