About Jagdish Sugarcane Centrifuge
The high-speed centrifugal action used to separate the massecuite into raw sugar crystals and molasses is done in revolving machines called centrifugals.
A centrifugal machine has a cylindrical basket suspended on a spindle, with perforated sides lined with wire cloth, inside which are metal sheets containing 400 to 600 perforations per square inch.
The basket revolves at speeds from 1,000 to 1,800 RPM. The raw sugar is retained in the centrifuge basket because the perforated lining retains the sugar crystals.
The mother liquor, or molasses, passes through the lining (due to the centrifugal force exerted). The final molasses (blackstrap molasses) containing sucrose, reducing sugars, organic non sugars, ash, and water, is sent to large storage tanks.
Once the sugar is centrifuged, it is “cut down” and sent to a granulator for drying. In some countries, sugarcane is processed in small factories without the use of centrifuges, and a dark-brown product (non centrifugal sugar) is produced.
Centrifugal sugar is produced in more than 60 countries while non centrifugal sugar in about twenty countries.