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How to produce high quality pellets?

During the process of using pellet machine to press pellets, the situation that raw material can not shaped or pellets produced are cracked may happen. So what is the reason that cause this problem and how to solve the problem? Let’s find it out.

3 main aspects cause this problem:

The Characteristic of raw material

Some materials we use are relatively soft, which makes them easy to shape during the press process. On the contrary, some materials are hard, which makes them difficult to shape.
The moisture of raw material is another aspect of cracked pellets or unshaped pellets. The best moisture rate of raw material is between 8% and 15%. pellets will be difficult to shape if the moisture get any higher or lower.
Proper crude fiber content added in raw material improves the pelleting output. But be careful of the amount of crude fiber content. Because too much crude fiber content of low cohesiveness will influence the hardness and shaping rate.

The compression ratio of the die

Choose the most suitable die. Die is the most important during the process, while the pellet machine works, raw materials falls into the holes and being presses into solid pellets, then cut into the length you want. According to raw material and the request of end product, select a suitable die.

The gap between press roller and ring die

The gap between press roller and die also matters, if the gap is too wide, raw materials falls into die holes will get less pressure and which cause poor quality of pellet forming. Adjust the gap to a proper pressure that suitable for raw material to get high quality and shaped well pellets.

Solutions to avoid producing loose pellets:

To ensure the quality of pellets, reduce cracked and unshaped pellets, necessary measure should be taken. First, choose a reliable manufacturer, do not only pay attention to their product but also their after-sale service. Familiar with the raw material that you want to process.
wood pellet
Many users always ask how they can make sure the raw material is at the right moisture rate. There are two ways to check the moisture rate of the raw material:
Normally, an experienced worker can feel the moisture content by touch, raw material falls down naturally when we let it go. Without sticky and caking in. Generally speaking, the moisture rate is just appropriate.
We also can use tools to check the moisture rate which is much more accurate than by touching. Insert the moisture instrument in the raw material to check whether the moisture is between 8% and 15%. If not, try to adjust the raw material to the right moisture rate.
A lot of customers who use pellet machine for the first time often wonder whether we need to put water in the raw material or not, Many people believe that it is necessary to add water to the raw material in the production of pellet. In fact, if the moisture of material is in a certain range, we do not need to add any water in the raw material. Remember that the moisture rate is 8%-15%. keep it in mind while checking your raw material.
If the raw material is too dry, we can put some little water in and be careful of the amount.Do mix well. If the material is too wet, you need to dry it to proper moisture rate.

All in all, there are many factors that may influence the quality of pellets, as users buying a pellet machine, consider of all concerning aspects before operating a pellet machine in order to produce high quality pellets and increase the production.

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