Screening equipment is used to classify the particle size of crushed materials, ensuring uniform particle size of the finished product. By driving the sieve box with an exciter, high-frequency vibration is generated, and materials are separated by size on the sieve surface. Qualified products are sieved out, while unqualified products are returned for further crushing. The equipment has a compact structure, high screening efficiency, large processing capacity, and can be configured with multiple layers of screens to achieve multi-level classification. It is widely used in closed-loop systems in mining, sand and gravel fields, and building materials industries.