DEHUSKING RUBBER ROLLER FOR RICE MILL

Rubber Roller is a rubber or an elastic material covering the core of metal or other material. Rice Dehusking Rubber Roll are precisely made and fitted with the fresh CI drums and aluminium drums. These rolls are specifically used for dehusking of raw rice. Due to the use of these rolls, raw rice get perfectly polished and whiten.

Rice (Oryza sativa L.) has been the staple food for more than half of the humanity in the world or two-third of the World’s population. Rice is the seed or kernel of paddy, which is covered by two different layers, namely- bran (inner layer) and husk (outer layer). Literally, paddy becomes rice only when the two layers are removed properly through different milling processes. In the first step, brown rice is extracted by removing hull/husk from the paddy, which contains bran layer still intact around the kernel. In the second step, the bran layer is removed by polishing machine that rubs the grains together under pressure, and the output is the polished white kernel or fine rice, which is ready for cooking. The former process is known as hulling and the latter is known as milling of paddy. But, in short, it is the conversion ratio from paddy to rice, or one can term it as hulling and milling ratio. Therefore, the two terms-1) hulling and milling ratio; 2) conversion ratio, will be used interchangeably throughout this paper.

In term of production, India has become the second largest producer of rice in the world (21 per cent of global rice production), next to China. As on 2009, rough total production of paddy was 14, 8260 thousand MT in the country, but, as estimated by USDA, it was 13, 2013 thousand MT. On the demand side, India’s domestic consumption was, on an average, 95% of what it produced and was still the third largest exporter of rice, after Thailand and Vietnam, with about 20% of the world’s total rice exports in 2006-07. In the recent years, with the growth of population, more pressure on the arable land has been made and this in turn, the need for higher productivity of crops was felt in the country. At the same time, large quantity of foodgrain was reported to be lost due to inefficient milling processes in the country. Therefore, it calls for a better processing technique of rice to prevent processing loss.

Generally, rice kernels are often susceptible to breakage due to inefficient milling processes. Therefore, more efficient milling processes are highly recommended for better recovery ratio and quality rice kernel production. It is also identified as one of the most important remedies for preventing post-harvest loss and an issue that is widely recognized around the world.