A prototype dry betel nut husking machine was developed and
optimum machine conditions, which were identified by the
greatest PS, were characterized by (a) tyre pressure of 138 kPa;
tyre speed of 440 rpm; and spacing between the tyre surface
and the concave sieve surface of 15 mm; and (b) an optimal
nut moisture content of 6.31% w.b. Performance testing of the
prototype based on the optimum settings revealed that
husking mixed size fruit produced output comprising 64.4% of