Important Equipments In Pelletizer Extruder
Pelletizer extruder, also named pelletizer machine, is an efficiency way to make pellets. For a pelletizer extruder, there are several important equipments which influence the quality of production most. One of the important equipments in pelletizer extruder is gearing.
Different pellet pelletizer extruders (pelletizer machines) are geared for different materials. Different gearing gives different speeds to the rotating die and rollers. A low gearing means more torque but a lower speed, which is beneficial when processing dense materials like woods and particularly hard woods. A low-geared pellet machine requires less binder and lubrication. A high gearing means less torque but a higher speed, which is beneficial for low-density materials such as grasses straws and animal feed products. Most straw pelletizer machine and rice husk pelletizer machine adopt a high gearing. Clearly the higher the speed, the higher the productivity; however this can be detrimental to pellet quality. For example some woods processed in a high-speed pellet extruder will not form dense shiny pellets as the necessary pressure and heat was not generated, as the material passes through the die too quickly. There is also a possibility when wood is processed in a high-speed pelletizer extruder because of the increased density of the wood the pelletizer machine motor may not have the power required. This will result in the pelletizer motor laboring and may even stall. Adding an additional binder can sometimes compromise these issues, this can help lubricate the pelletizer extruder and reduce resistance, while still producing hard shiny pellets. Some pelletizer machines are geared in the middle; they can therefore have a good productivity and still retain pellet quality, even for wood pellets.