The small vibrating sieve machine is a superfine material screening product designed for superfine dry herbal powder (such as Chinese medicine powder, plant extract powder, herbal powder, etc.), which can screen fine powders with mesh sizes ranging from 80 to 500. Small vibrating sieve machine for very fine herbal dry powder can achieve accurate particle size classification and remove unnecessary impurities in the material during the screening process, considering the characteristics of fine particles, easy dust and easy adhesion of herbal materials.
When selecting a small vibrating sieving machine for herbal powder screening, you can choose the appropriate mesh size of the sieve according to the required finished product fineness, such as 200 mesh, 300 mesh or 400 mesh. For occasions with high requirements for screening accuracy, it is recommended to use a rotary vibrating sieve or an ultrasonic vibrating sieve. The rotary vibrating screen has a compact structure and is easy to operate. It is suitable for grading and removing impurities of most herbal powders. The ultrasonic vibrating screen is suitable for ultrafine powders with a particle size of less than 100 microns and easy to block the screen. The high-frequency micro-vibration of the ultrasonic device effectively solves the problem of screen blockage and greatly improves the screening efficiency and pass rate.
In terms of material selection, it is recommended to use medical grade 304 or 316 stainless steel. Some application scenarios can also consider screens with antistatic coatings to avoid powder adsorption. In addition, to ensure the cleanliness of the screening process and reduce dust leakage, dust-proof sealing covers and receiving hoppers are optional. In terms of power systems, small equipment is usually equipped with 0.18~0.55kW high-efficiency motors, supporting 220V or 110V voltages, which can be customized according to the actual use environment of the customer. Correct configuration and selection can help improve the screening accuracy, efficiency and finished product quality of herbal powders.
Through the multi-layer screen structure configuration, the small vibrating screen can not only classify powders of different mesh sizes and extract finished powders of target particle size, but also effectively remove coarse particles, fiber impurities or agglomerated materials mixed in the raw materials, thereby improving the purity and quality of herbal powders. The finished product after screening is more uniform, which is conducive to subsequent mixing, packaging or preparation processes.
The high-frequency vibration drive with small amplitude but high frequency can ensure that even powders with a particle size as low as 20 microns can pass through the net smoothly without clogging. The sealed structure design combined with the stainless steel screen effectively prevents dust leakage, meeting the strict requirements of the pharmaceutical, food and other industries for hygiene and safety.
The multi-frequency vibration technology can achieve accurate screening of ultra-fine powders of 80~500 meshes. The screen is evenly tensioned and the mesh surface is flat. Combined with the precision motor drive, it can effectively remove impurities, classify the particle size of materials, and ensure the purity and quality of powders.
1~3 layers of screens can be configured according to actual needs to achieve coarse screening, fine screening and graded screening. Each layer of screen can be replaced independently, which is convenient for switching and processing of powders of different particle sizes.
Small vibration screening machines are ideal for processing ultra-fine herbal dry powders due to their efficient screening capabilities, compact size, easy operation and excellent adaptability. Whether used for scientific research experiments, Chinese medicine decoction factories, or individual small-scale production and processing households, they can effectively improve screening quality and work efficiency, and help improve product quality. If you have specific powder samples or production capacity requirements, customized designs can also be carried out to meet different working conditions.
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