Imbalanced nutrition, besides shortage of feed is one of the major factors responsible for low livestock productivity in conventional feeding. But, as time elapsed, there has been gradual shift from traditional pattern to compounded cattle feed (CCF), either in mash or pellet forms. The pellet form is the most preferred form of CCF among other due to its various advantages. In India, compound feeds are produced at industrial level and there is about 57% of gap between demand and supply. Any disruption in trade may cause cattle pellets expensive and unaffordable for the average dairy farmer. Feed pellet production at farm level by using locally available feed resources (which are within easy reach of the farmers and at low cost) is an alternative to the high cost feed pellet available in the market. The feed pelleting machines available in the market are expensive and individuals are unable to own them. Considering this, an attempt was made to design and develop the portable feed pelleting machine for farm level compound cattle feed pellet production. The physical properties of the feed mixture (viz. particle size, moisture content, bulk density, coefficient of friction and angle of repose) were determined and used/considered for design of feed pelleting machine wherever found necessary. The developed feed pelleting machine consists of the die plate, die shaft, pelleting chamber, press rolls, clearance adjustment mechanism, hopper, V-belt and pulley drive mechanism, electric motor and main frame. The outcome from evaluation of the pelleting machine has demonstrated a pelleting efficiency of 91.40%. The prototype feed pelleting machine produced a throughput capacity of up to 55 kg/h and pelleting capacity of 54 kg/h.

中文翻译：

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用于农场级饲料生产的便携式复合牛饲料制粒机的设计和评估

除了饲料短缺以外，营养不均衡也是造成常规饲料牲畜生产率低的主要原因之一。但是，随着时间的流逝，已经逐渐从传统模式转变为混合饲料或饲料，无论是饲料是粉还是颗粒状。粒料形式由于其各种优点是最优选的CCF形式。在印度，复合饲料在工业水平上生产，供需之间的缺口约为57％。任何贸易中断都可能导致牛粒对普通奶农来说昂贵而难以承受。通过使用本地可用的饲料资源（农场主容易获得且价格低廉）在农场一级生产饲料颗粒是市场上高成本饲料颗粒的替代方法。市场上可用的饲料制粒机价格昂贵，个人无法拥有它们。考虑到这一点，试图设计和开发用于农场级复合牛饲料颗粒生产的便携式饲料制粒机。确定饲料混合物的物理性质（即粒度，水分含量，堆积密度，摩擦系数和休止角），并在需要时用于饲料制粒机的设计。研制的饲料制粒机由模板，模具轴，制粒室，压辊，间隙调节机构，料斗，三角皮带和皮带轮驱动机构，电动机和主机组成。对制粒机的评估结果表明制粒效率为91.40％。