Silicon powder ultrasonic test sieve

Friday July-04 2025  16:25:55

What is Silicon Powder Ultrasonic Test Sieve

The main reason for using silicon powder ultrasonic test sieve to screen silicon powder is that it can effectively solve the problem of screen blockage caused by the small particle size (usually 80-600 mesh), easy agglomeration, strong adsorption and high electrostatic characteristics of silicon powder during the screening process.

Traditional vibrating screens are difficult to cope with these characteristics, with low screening efficiency and poor accuracy. The ultrasonic test sieve converts high-frequency electrical energy into 18KHz ultrasonic vibration (about 36,000 times per second), so that the silicon powder on the screen remains suspended, breaks agglomeration, reduces adsorption and electrostatic interference, and thus significantly improves the screening pass rate (up to 99.5% or more) and accuracy (increases by 1-70%).

What is the main function of the silicon powder ultrasonic test sieve

The main function of the silicon powder ultrasonic test sieve is to perform high-precision, non-clogging screening and particle size analysis on fine silicon powder. Its core task is to ensure that the particle size distribution data of silicon powder can be obtained quickly and accurately during the experiment or quality inspection process. 

Fine particle screening: It can screen ultrafine silicon powder from 325 mesh to 2500 mesh, with a particle size of about 5μm, suitable for high-purity and electronic-grade silicon powder screening

Anti-blocking function: Through ultrasonic high-frequency vibration (about 36kHz~40kHz) acting on the screen surface, it effectively prevents the blockage caused by agglomeration and electrostatic adsorption

Multi-level screening; multi-layer screen frames can be installed to achieve multi-level particle size classification (such as: >325 mesh, >500 mesh, <800 mesh, etc.)

Differences between silicon powder ultrasonic test sieve and ordinary test sieve

Project	Ordinary test sieve	Silicon powder ultrasonic test sieve
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Drive mode	Electromagnetic or motor vibration	Electromagnetic/motor + Ultrasonic composite vibration
Anti-blocking ability	poor, easy to block	strong, continuous net cleaning
Screening accuracy	medium	high accuracy (up to 5μm)
Applicable materials	ordinary powder	fine, easy to agglomerate silicon powder and other difficult materials
Working mesh range	generally ≤500 mesh	up to 2500 mesh or more

Application of ultrasonic test sieve in silicon powder field

Test the sieve residue of silicon powder samples in the laboratory to determine the particle size distribution;

Screen silicon micropowder with a specified particle size range in precision ceramics or electronic packaging materials;

Product particle size inspection during the production of ultrafine silicon powder to ensure the pass rate;

Powder material research and development laboratory conducts multi-level particle size classification research.

What is the price of silicon powder ultrasonic test sieve?

The price of the silicon powder ultrasonic test sieve varies depending on the equipment's specifications, materials, brand, and functional configuration. Generally speaking, the price range is not very wide.

Generally, the price of small laboratory equipment is around $290-$940, such as some small test sieves with basic functions, which are suitable for screening tests of small amounts of silicon powder in the laboratory. The price of medium-sized equipment is around $500-$1200. This type of equipment has improved screening accuracy and processing capacity to a certain extent, and can meet the needs of medium-scale silicon powder screening. The specific price needs to be further determined with the supplier based on the detailed parameters of the actual product and the purchase quantity.