House of Industrial Rubber Products

Manufacturers & Suppliers of

* Rice Dehusking Rubber Rolls & Polishers.
* Off - Set Printing Rollers, U.V. Printing Rubber Rollers
* Photocopier Rollers
* Corona Treater Rollers, Sleeves
* Sponge Rubber and Allied beltings for
   Pharmaceutical, Distillery & Ceramic Tiles Industry.
* Rubber Coating on Timing Belts of Various sizes for
   Packaging Industry.
* Transparent Food Grade Silicone Rubber Tubings
   For Liquid Injectables.
* All types of Moulded Parts in Elastomers Like
   Natural, Neoprene, Nitrile, Hypalon,
   EPDM, Polyurethane, Silicone & Viton

PRINCIPLE OF OPERATION

If a grain of paddy is pressed between two resilient surfaces moving at different speeds in the same direction the husk will be stripped off. Picture below shows the operational principle of the modern sheller whose rollers have the same diameter but revolve at different angular speeds.

VARIETY OF PADDY

The size and roughness of husk affect the performance of the rolls when long grain varieties of paddy are dehusked by the contact area of the grain with the rubber is much longer compared to short grain varieties consequently, the wear is higher and the life of the roll is considerably reduced. The same quality of roll can dehusk about 200mt of short variety of paddy grown in Japan against only about 100mt of long grain paddy variety in tropical countries. When parboiled paddy is milled the husk gets loosened and thus split easily. Therefore same quality of rolls can dehusk about 300mt of parboiled paddy against only 200mt of raw paddy.