Today, the biomass pellet machine manufacturer TONY will help you solve the problem of how to test the qualification of wood chip pellets. 

A qualified wood chip Pellet refers to one with a moisture content of less than 10%, and from a mechanical perspective, it has a high density and is very sturdy. Many manufacturers of wood chip Pellets have used wood chip Pellet machines after which they are concerned about whether the quality of the produced Pellets is qualified and whether it meets the combustion standards. Now, I will introduce some tips for testing wood chip Pellets.

The first testing method is the simplest way to test the quality of the Pellets: Place the wood chip Pellets in a cup of water. If they sink to the bottom, it proves that their density is high enough, greater than 1, and the pressure during formation is sufficient. However, if the Pellets float on the water surface, it proves that their density is very low and the quality is poor. From a mechanical perspective, their durability is very poor, and they are very easy to break or turn into fine powder.

The second testing method: Take a container, which can hold at least 1 liter of water. Weigh its weight. Fill the container with the Pellets, then weigh it again, subtract the net weight of the container, and divide the weight filled with Pellets by the weight of the filled water. The calculated result of qualified wood chip Pellets should be between 0.6 and 0.7 kilograms per liter. This value can also be regarded as the specific gravity of wood chip Pellets. It is a very important parameter, indicating whether the pressure size during Pellet manufacturing is correct. Those unqualified Pellets will have a value lower than 0.6. They are very prone to cracking and pulverization, and will produce a lot of fine powder.