A rice rubber polisher (sometimes called rubber brakes or rubber polisher brakes) is a component used in rice milling and polishing machines. Its main role is to polish or rub rice grains (after husking) to improve appearance (whiteness, gloss), reduce bran remnants, and improve the quality of finished rice.

These rubber polishers are usually sticks or roll profiles of rubber, or sometimes grooves or “brakes” inside cones or polishing chambers, which rub against the rice or help slow down or regulate flow to allow polishing to occur. They can be used with other polishing elements (like cones, screens, rollers) for combined effect.

They are made using durable Rice Rubber Polisher compounds (natural rubber, synthetic rubber like SBR, NBR etc.), often vulcanized, to withstand abrasion, heat, and stress.

How Rice Rubber Polishers are Used & Their Key Features

Here are some of the functional and constructional specifications / considerations:

Advantages & Disadvantages

Advantages:

• Lower broken rice percentage if well made, which improves yield.

• Improve appearance and market value of rice (better whiteness / polish).

• Easier / simpler maintenance (rubber parts are fairly straightforward to replace compared to more complex polishing rollers or cones).

• With good material, they can withstand abrasion and heat reasonably well.

Disadvantages:

• Rubber wears down — needs replacement periodically.

• If hardness or profile is incorrect, may damage rice (higher breakage).

• Heat, friction may degrade rubber over time; poor material / curing leads to defects.

• Not all rubber polishers are suitable for all kinds of rice or all milling machines — matching size / groove etc. is important.

Summary

Rice rubber polishers (or brakes) are essential consumables in the rice milling process. They contribute a lot to final product quality (shine, whiteness, reduced bran, less breakage) if correctly sized, made of good material, and correctly installed. India has several capable manufacturers like Balaji Udyog, Alaska Multipolymers, Ace Polymers, Hindustan Group etc., offering a range of grades, sizes and profiles.