The reason for low output of sawdust pellet mill

1. New ring die. Please check up whether the compression ratio is matching up to the raw materials at first. If the compression ratio is too big, the resistance force that material pass through the ring die holes are increasing, the extruding pellet is hard and the output is lower; if the compression ration is so small that the extruding pellet can not molded. So it is necessary to choose a proper compression ration one more time. The second is to check up the degree of finish of holes of ring die. Bad quality ring dies has rough surface of ring die holes, and the resistance force of discharging is so big that the surface of the pellets is rough with low output. At last, check up the round ring die is out-of-round or not. This can give rise to lower output of the pellets. So it is necessary to choose a high quality ring die. 

2.  After the ring die is in operation for a period of time, please check up whether the taped hole of inside ring die is wearing or not, and the compression rollers are wearing or not. If the wearing resistance is serious, please maintain the ring die and countersink the wearing taped hole. The wearing compression rollers much be replaced. The wearing of the ring die holes affected the output greatly.  
 

3. To adjust the clearance of ring die and compression rollers. Too small clearance can increase the friction force of the compression rollers and ring die with short life span of ring die. Big clearance gives rise to slipping of the compression rollers with lower output. 
 

4. To take control of the moisture content of the materials before feeding. If the moisture content is too high, the inside of the ring die will slipping with no discharging of raw materials. 
 

5. To take notice of matching of the fineness of the crushing powdery materials with the diameter of the holes. The smaller particle of the raw materials, the fineness should be smaller. 
 

6. Check up the spreading of materials inside the ring die. The materials should not run to the single side. If it happens, the position of the big and small cutters should be adjusted to spread the materials evenly inside the ring die which can not only prolong the service time of ring die but also make the discharging process smooth.  

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