This device is designed to separate the grains based on their density, in this way the seeds that were not separated in other screening devices due to the same size, they can be easily separated in this device. The machine separates some impurities from the original seed such as: sand, barley seeds, weed seeds, hollow seeds, and others. The machine was first manufactured in Iran by Azaran Bojar Iranian Company with a capacity of 4.5 tons per hour and also obtained the patent.