The buffer silo is a fully closed machine with flexible connections to filling and emptying augers thus ensuring the correct weight measurement of material inside the silo. The silo is placed on 4 load cell’s. The two main augers are not working at the same time, they change every 60 minutes (can be adjusted). Inside the silo is the material both distributed but also mixed, and it is possible to add material and have it mixed in a continuous process. At the outlet from the mixer is an adjustable shutter that makes it possible to close the machine complete from the line. Under the outlet shutter is placed a cone that collects all material without spillage from shutter and fills it into the collection auger.