The next is the screening of return materials. For some reasons, there may be some materials can’t be granulated. That causes the waste of fertilizer raw materials. To improve the using rate of fertilizer materials, you can use the rotating screening machine to screen the return materials out. After then, they can be secondary granulated.
The third point is grading the finished fertilizer granules. To make more profits, you can grade the final fertilizer pellets by our rotary screening machine. For the first time you can screen for the best looking granules, they can fetch a good price. The second time you can screen out medium quality pellets and sell them at a reasonable price. The screened fertilizer granules can be granulated secondary, that will obviously improve the using rate of the fertilizer raw materials.