Rice Husk Baler / Rice Hull Baling Press

Rice Husk (also known as Rice Hull) is the outermost layer of a rice grain. It is low in density and has an unusual shape, normally with the dimension around 5 mm. Due to these characteristics, the conventional way of baling and strapping is not suitable. Because the bale will soon break and split up once it is taken out from the chamber. To meet different utilization, we developed two ways of baling for such material. They called rice husk baler or rice husk baling press machine.

Rice husk baler machines - Bagging balers

Pressing the material into dense block and then bag it. This is one of the ways that majority of the rice husk recyclers adopted. This baling solution corresponds to a bagging baler. Rick husk bales produced by bagging baler are easily loosened and the material normally keeps its original form after the bale is broken up. And because these rice husks will recover into its original form. It can be reused in food or chemical industry to turn into substances such as sugar, ethanol, etc. When choosing a bagging baler for rice husks, you have to consider a suitable pressure force for the machine, which it should neither be too big nor too small.

Rice husk is relatively small in size. And it generates great friction between the material and the machine inner walls during pressing process. Therefore it requires certain level of pressure force to push the material through the baler chamber. If your rice husk is smaller than average size, it will means your material’s original bulk density is higher than average. So it will require machine with higher compressing force.

According to our years of experience, the pressure force required to bale rice husk should be at least 60 tons, in order to produce a bale approximately 20 kgs in weight. If you are pursuing bigger bales (that will means the chamber has to be expanded to bigger size so as to receive more material for each feeding), higher pressure force has to be adopted. For example, to have a  rice husk baler to make 30 kgs bales, you will need approximately 100 tons pressure force. Rice husk is not fluffy material, so when we program the PLC of the baler, we set one shot of feeding to make one bale, instead of multiple feeding, because one shot feeding is enough to make a very dense bale for such material. In another word, for baling rice husk, the volume of the compressing chamber directly determine the weight of each bale.

We mentioned above that the pressure force cannot be too big for bagging baler. That is because if pressure force is too big, the bale will be too dense and hard to loosen it unless you use tool like hammer to break it. Even if you do break it up successfully, the original form of the material might have been damaged.

Rice husk baler machines - Briquetting balers

On the other hand, if the rice husk is eventually used for energy purposes like fuel, then it is another story. This is where the alternative way of baling is recommended – using the briquetting baler to turn loose rice husks to briquettes. This way of baling requires very high pressure force, usually 150 tons or above, to make a compact briquettes. The briquettes made by such baling machine are so dense that it will not break easily, and bag is no longer necessary. During transportation, the corners or the edges of the briquettes might get hit or abraded resulting small quantity of material to chip off. Hence, some exporters use a big woven bag to pack a number of briquettes together to keep the briquette in better shape.

Similar to bagging baler, the size of the compressing chamber of briquetting baler will directly affect the pressure force that is needed. Bigger chamber size will means bigger pressure force is required. Chamber section such as 300mm x 350mm is ideal with 150 tons pressure force, whereas the 480mm x 480mm chamber section will require a 200 tons pressure force to achieve optimum results.

Baling rice husk normally creates a very dusty environment, regardless whether you are using a bagging baler or a briquetting baler. In order to minimize the amount of dust flying around in your workshop and contaminate your work space, you can consider adding a protective cover at the top of the hopper to help containing the material within the machine. You can refer to our sales team to get sample images of the protective cover and get more information about rice husk baler. View more size reduction machines.