How to distinguish the quality of wood pellet machine?

When inspecting the wood pellet machine manufacturer on site, you can tell whether the wood pellet machine is running smoothly from the sound of the wood pellet machine. The specific method is to take an iron rod, put one end of the iron rod on the bearing seat of the wood pellet machine, and listen to the bearing operation of the pellet machine from the other end. When you hear a rhythmic, squeaking sound like the bearing in a good lubrication state, it is clear and has no noise, indicating that the bearing, spindle concentricity, etc. of the wood pellet machine are running well.

When testing the machine, you can smell whether the produced pellets have the aroma of wood, because some manufacturers will add adhesives to the raw materials of the test machine because the pellets they produce are not well formed, to deceive customers to prove that the pellets produced by their equipment are well formed. If the pellets with adhesives added have the chemical smell of adhesives, pure wood pellets do not have it, only the aroma of lignin.
When the test of the pellet machine is almost finished, you can touch the area 5-20 cm above the bearing room of the pellet machine, because the bearing for adjusting the concentricity of the main shaft of the pellet machine is placed in this corresponding position. As long as the temperature does not exceed 60 degrees, it means that the working tolerance of the pellet machine is very small. Why do we keep mentioning the concentricity? Because the concentricity of the pellet machine is the most effective way to measure the quality of a pellet machine.