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Rotary vibrating screen: An efficient solution for coffee powder screening

August 28, 2025

In the field of specialty coffee, the uniformity of coffee powder particles directly affects the extraction efficiency and flavor. As a professional screening equipment, the rotary vibrating screen, with its outstanding performance, has become a key link in coffee production.

 

The rotary vibrating screen, also known as the three-dimensional vibrating screening and filtering machine, has its core power derived from the vibrating motor. The eccentric weights at the upper and lower ends of the motor, by adjusting the phase Angle, generate a compound vibration of horizontal, vertical and inclined, causing the coffee grounds to perform jumping circular motion and horizontal circular motion on the screen surface, thus achieving efficient screening. Its structure mainly consists of a screen box, a vibrating motor, shock-absorbing springs and a screen mesh. The stainless steel screen box ensures hygiene, while the screen mesh determines the screening accuracy. 

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In the screening of coffee grounds, the rotary vibrating screen has significant advantages. High-precision sieving is its most prominent feature. Sieves of different mesh sizes can precisely control the particle size of coffee grounds. For instance, a 10-20 mesh sieve required for hand-brewed coffee can ensure stable extraction and balanced flavor. In terms of efficient production, the three-dimensional vibration design significantly enhances the screening efficiency, enabling the processing of a large amount of coffee powder in a short time. Moreover, it can be linked with other equipment to achieve automated production. In terms of operation, it can easily adapt to different coffee grounds by adjusting the motor parameters and the mesh size of the screen. Its compact structure enables it to handle both large and small production scenarios with ease.

 

When using a rotary vibrating screen, select the appropriate screen mesh according to the type of coffee powder and install it correctly. After starting, adjust the motor parameters. During the process, pay attention to the screening status and clear the blockages in time. At the same time, thorough cleaning and disinfection must be carried out before and after each use. Regularly check the wear of components to ensure the normal operation of the equipment.

 

With the rising demand for coffee quality, the rotary vibrating screen, with its high precision, high efficiency and flexible operation, is bound to play a more important role in the fine processing of coffee grounds and promote the development of the specialty coffee industry.