By increasing the diameter and width of ring die, we can lower the contacting stress. To ensure the smaller elastic modulus, we should use different materials to make the ring die and press roller. With the premise of not influencing other performances, we should lower the power and improve the revolving speed as much as possible.
While, the blind increase can increase the noise and vibration as well as influence the modulating ratio of biomass pellets. According to the actual situations, we should increase the diameter as much as possible to lower the contacting stress of ring die. If we neglect the functions of die holes, the working ring die will be like a round ring with thin wall and uniform section.
Through the analysis on strength of ring die, we can see that the working ring die has to bear the contacting stress and bending stress. Meanwhile, the ring die always works in a humid and hot environment. Therefore, the service life of ring die is easy to be influenced during the working process of wood pellet mill.
As a professional supplier of wood pellet mill, FTM China Machinery has early recognized the vulnerability and importance of ring die. Through the long-term analysis, FTM exported the high-alloy steel from abroad and made the ring die with strong strength, tenacity, hardness and wear-resistance.
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