TopWhite. Quality. Performance. Economy

The Bühler TopWhiteTM whitener BSPB is used for whitening (i.e. removal of bran) of  brown rice to white rice. It uses the vertical abrasive top to bottom working principle,  which has been proven to achieve the highest whole grain yield. Its main fields of  application are the rice milling industries. The whitener can also be applied to grain,  wheat, barley, and peas processing industries.

ƒ Flexible Adaptation  
ƒ Uniform and gentle whitening
ƒ Intensive cooling
ƒ High capacity and efficiency
ƒ Minimum space requirement
ƒ High product quality  
ƒ High level of sanitation
ƒ Low power consumption
ƒ Easy Maintenanc

Highly flexible and adaptable rice production.
The TopWhite™ whitener BSPB adapts easily to all varieties of rice for whitening. The various options make the machine  most suitable for all sorts of rice and ensure the production of perfect white rice of all kinds.

High efficiency thanks to gentle whitening process.
Through a smooth flow of rice and the efficient aspiration system inside the machine, the rice is whitened very gently.  This minimizes breakage of the rice during the whitening process and ensures maximum profit.

Guaranteed uniformity and quality of the end product.
The option of various adjustments even when the machine is in operation – like counter weights or the adjustable gap  between screens and stones – enables uniformity and guarantees high quality of the end product.
Working principle
The TopWhiteTM uses the vertical abrasive, top to bottom  working principle which has been proven to achieve the  highest whole grain yield. The grain enters the whitener via  two inlets and is guided into the processing chamber by a  feed screw. There, it is exposed to careful whitening of the  grain surface between the six abrasive rings and the screen.  As the rotor is dynamically balanced a smooth running is  assured. The whitening intensity is controlled by two easily  adjustable means the counterweight of the retaining gate  and the gap between rotor and brakes. For coarse  adjustment, the vertical brakes attached to the sieve basket  are moved simultaneously by simply turning a handwheel  and thereby tuning the resistance inside the chamber. The  fine setting is done by changing the counterweight position  of the retaining gate, thus controlling the pressure. The  gravity flow of the product allows a trouble-free restart in  case of an emergency shut-down.

Aspiration system
The TopWhiteTM is equipped with an optimised aspiration  system that fulfills two tasks very efficiently: it cools the rice  and thereby reduces breakage and supports the conveying  of the bran out of the whitening chamber into the exhaust  system. Therefore, aspiration air is guided partly through the  product and partly around the screens. The aspiration hood,  being easy to open or remove, gives full access to the heart  of the machine. For best sanitation, no moving parts are  involved in the bran removal system. The ammeter and the vacuum gauge allow the monitoring of  the motor current and the negative pressure of the applied  exhaust system.