A laboratory model and a commercially viable hydraulic machine, capable of compacting animal feed materials into feed blocks were developed. The bulk density of the roughage based feed blocks from these machines was found to be 4 to 5 times more than that of the original feed material. The commercial model produced 30 to 40 blocks of 20 cm x 20 cm with variable thickness per hour. The machine has been tested extensively for different crop straw and menu based feed mixtures for cattle.
