The Manual Seeder with different principles has more emphasis on the impurities or functions removed during the seed processing. Among them, the principles and types of cleaning machines are more, and purchase should be careful. The general principles are as follows.

    (1) Clear seeds are significantly lighter in weight than good seeds, and there is a clear difference between the size and good seeds. An air sieve cleaning machine should be selected. The machine is currently widely used.

    (2) When there are obvious differences in length and size, and there are still long or short impurities that cannot be removed after the wind screening process, you should try to select the hole-type selection machine.

    (3) After being processed by the air sieve cleaning machine and the hole-type selection machine, the clarity has been significantly improved, and the particle size is relatively uniform, but there are still some such as shrivelled grains in corn, moth-eaten grains, ear rot grains ; Shriveled grains, insect sucking grains, shelled grains in wheat; shriveled grains, powdery mildew grains, bud grains in rice; worm-eaten grains, diseased grains, wrinkled grains in beans..., more impurities above Density impurities are often similar to good seeds in weight, and even heavier than good seeds. Non-specific gravity type selection machinery cannot be removed. With the development of seed industry, the selection machine of specific gravity type is becoming more and more popular, and the operation difficulty is greater than that of the air screen type cleaning machine.

    Of course, some seeds need to be threshed, seeded, demanded, develveted, polished, and de-stoned before cleaning, and then the corresponding machinery must be purchased for processing. If the corn seeds are processed from the ears, the threshing and cleaning machinery should be selected; the cotton seeds need to be de-velveted, and the appropriate de-velvet equipment should be selected; the rice needs to be removed, and the de-mans machine should be selected.

    If the seeds have been cleaned up to the standard, they need to be further processed, such as mixing medicine, coating, pelleting, as well as metering and packaging, and you need to purchase the corresponding Manual Fertilizer Seeder.

    The manual fertilizing machine not only has different functions and various types, but also has different grades in specific use.

    High-end grade, with large-scale complete equipment, commonly known as assembly line, style and large investment, suitable for large-scale production and operation, high modernization level, natural processing effect.

   Generally, only a single machine is used for the primary grade, which can only remove a certain type of impurities, and it is difficult to meet the standards at one time.

    Intermediate grade is a supporting unit for seed processing. For now, it is suitable for the productivity level and production management model of the rising seed industry in China. It has the advantages of less investment, quick results, simple operation, convenient movement, solid durability, and high return rate. Welcome to the Chinese seed industry.