Controlling Pellet Mill Pressure With Vegetable Oil and Water

It's important to stress the point that every material is different, even different types of wood fiber perform differently in the pellet mill. Due to different material densities, different designs of pellet mill die are used. The length of the die and the taper on the entry and exit of the holes all effect the results of compression. However as stated every material is slightly different, and creating an infinite number of die designs is not practical or affordable for the consumer. Therefore we can also use water and vegetable oil to alter the compression within the die holes. You can see an example of this in the video below.

As you can see from the video, the Mini Pellet Mill has a water tank and a vegetable oil tank with adjustable drip feed valves on the bottom. Along with the fully variable speed material feed auger, the Mini Pellet Mill can control the process like no other. Adding a small amount of water can help with natural binding qualities in the pellet mill, and can also help to build pressure if the material is very dry. Vegetable oil can be used to reduce pressure within the die holes. For instance if the productivity of the pellet mill is very low or the pellets have a black/burnt appearance a small amount of vegetable oil can be added to lower the compression slightly. This means that one die can be used for a wide range of materials as compression can be altered with the controlled addition of water and vegetable oil into the pellet mill. This feature is not seen on the cheap flat die pellet mills that come out of china, and consumers suffer as a result. To learn more about the process of making pellets please click below for free guides.