The circular vibrating screen, abbreviated as circular vibration screen, is a general screening equipment that utilizes the centrifugal inertial force generated by the rotating eccentric mass block (exciter) to drive the screen box to perform approximately circular trajectory vibration. Its vibration trajectory is smooth and continuous, and the materials move in a throwing motion on the screen surface. It can efficiently complete various operations such as screening, classification, dehydration, and dewatering. As one of the most basic and widely used screening machinery in industries like mining, building materials, and metallurgy, the circular vibrating screen, with its simple structure, reliable operation, large processing capacity, and high screening efficiency, has become the core equipment for separating the particle size of solid materials.

Working principle

The core power source of the equipment is a vibration motor or an exciter driven by a motor (commonly of the eccentric shaft or block type). When the exciter rotates at high speed, the eccentric mass generates periodic centrifugal force, which is transmitted to the entire sieve box, causing it to undergo forced vibration on the supporting springs. The trajectory of this vibration, when projected in the vertical plane, becomes a circle or an approximately elliptical shape. After the material falls from the feed port onto the sieve surface, it moves forward through continuous circular throwing, rolling, and jumping. Particles smaller than the sieve hole size have the opportunity to pass through the sieve with each contact with the sieve surface, becoming the undersize material; particles larger than the sieve hole move along the inclined direction of the sieve surface and eventually exit through the discharge port, thus achieving the separation of materials according to their particle size.

Products features

The structure is sturdy and the operation is stable.
The fuselage is made by welding high-strength steel plates as a whole. The frame is stable and does not shake. It has a long service life and the quality is stable and reliable. Easy to operate
Equipped with an intelligent adjustment system, the operation is simple and intuitive, reducing the need for manual intervention.
Easy maintenance
The modular structure design enables quick replacement of vulnerable parts and convenient maintenance.
Low failure rate
The entire machine is made with strict materials selection and has a sturdy structure, resulting in a low failure rate and the ability to operate stably for a long time.

Application fields

The circular vibrating screen separator covers almost all industrial fields that require solid material separation based on particle size:
Mining industry: used for pre-sieving, inspection sieving, preparation sieving, and dewatering and desliming operations of coal, ferrous metals (iron, manganese), non-ferrous metals (copper, lead, zinc), and non-metallic ores.
Sand and stone aggregates and building materials: it is the core screening equipment in the sand and stone production line, used for classifying the crushed mixed materials into different specifications of crushed stones and artificial sand, and also for the screening of cement raw materials and clinker.
Metallurgical industry: used for classification in the beneficiation plant and for screening of coke and sintered ore in the sintering plant.
Chemical and fertilizer industry: used for particle size classification and impurity removal of chemical products such as plastic particles, compound fertilizers, soda ash, and resins.
Food and grain processing: used for cleaning and classifying materials such as grains, flour, starch, salt, and sugar.
Energy and power: used for screening of coal in thermal power plants and for classifying sand and stone aggregates in the sand and stone system of hydropower plants.