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Different Types of Pellet Machine

Different Types of Pellet Machine   
As you would expect, there are various types and designs of pellet machine. The two main types are flat die pellet mill and ring die pellet mill. Flat die pellet mill was designed around the turn of the 20th century to produce animal feed. Ring die pellet mill was not really developed until the 1950's. The original purpose for all pellet mills was to compress animal feed into pellet form. There were several advantages of processing animal feed into pellets. Firstly, a specific blend of feed, minerals and vitamins could be produced for each animal. Moreover, in pellet form it is much easier to distribute each day the correct amount of feed for the animals without waste and over feeding. Finally due to the compressed form of the feed and increased density, transportation costs are dramatically reduced. Below is the brief introduction about flat die pellet mill and ring die pellet mill.
Flat die pellet mill

Let's learn the basic design and working process of flat die pellet mill first: A solid metal plate sits below a series of compression rollers. Material enters from above and falls between the rollers and is compressed through the die. The finished pellets then fall through the bottom of the die and leave the pellet mill. Thanks to this design, flat die pellet mill is predominantly used for small-scale production, particularly for homeowners and small-scale producers to make pellets for animal feed or for fuel. 
Ring die pellet mill
Similarly, Unlike flat die pellet mill design, the die of ring die pellet mill is positioned vertically not horizontally. The raw material enters the center of the die, and is compressed through the die with a series of compression rollers. Most ring die pellet mills have two compression rollers; however some ring die pellet mills have three to four compression rollers. 
It's not proper to say which design of pellet mill is superior, as it depends on many factors. Each type of pellet mill has its own advantages and disadvantages, thus users should foster strengths and circumvent weaknesses in the process of use.