The whitener machine is vertical type. Both abrasive and friction milling in the milling chamber; the milling degree is controlled by resistant pieces device and weight on the discharge outlet for the milled rice.

 During whitening bran layers will be removed from brown rice. The bran removal is best achieved in three steps to ensure evenly milled rice grain with minimum broken and optimum whiteness. The bran removal is 10% (brown rice) during whitener:

First pass is removed 3%

Second pass is removed 4%

Third pass is removed 2 - 4%

Rake bar consumption is 300 – 400 ton/set

The temperature will increase after three pass of whitening about 7deg.C-10deg.C

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