pellet feed mill

Forum: Correct usage and maintenance of a ring die

Published on: 08/18/2010
Author/s : Wang Chao, Muyang Group
As a critical part of a pellet feed mill, the ring die is not only directly related to pellet quality, but also to the maintenance cost of a feed mill. According to statistics, the cost of wear and tear of ring dies usually counts for 25% of the plant’s total maintenance expenses. As a result, it seems prudent to offer direction and instruction on the correct usage and maintenanc...
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Dr.Iftikhar Ahmad Mashhadi Dr.Iftikhar Ahmad Mashhadi
Animal Nutritionist
August 18, 2010
The article Correct usage and maintainance of a ring die
by Mr. Wang Chao, Muyang Group is an interesting for the feed manufacturing practices. the author deeply narrate the Roller gap and Die maintenance . I will be highly obliged if the author throws light on the die maintanance for the following points:
As the life of a die with the passage of time deteriorates with metal traps and grooves on the surface ,
at what stage we should grind the surface of die
whether it depends upon number of bags produced by the die or thickness of die
normally when the thickness of die reaches at 35 mm then it was broken into pieces
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Cedrick Maxwell Guerrero Cedrick Maxwell Guerrero
Mechanical Engineer
July 15, 2013
sir regarding the installation,we follow the clearance between the die and roller,but the result of our run test is not good,the raw materials mashed clogged on the die.the roller can not press hard so the output of pellet is so little...our die holes diameter is 4 mm. originally the clearance is zero but its okay it can run continuous.we use feeler gauge for measuring clearance.please advise.thank you
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Mike_feng Mike_feng
Customer Manager
July 17, 2013
The clearance between the die and roller should be very small or the raw materials will generate adamant shell which prevent pellets generation and clog the die holes.
So, just reduce the clearance between ring die and roller and don't touch each other directly.
I hope it can help you.
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