Asymmetric Shaft Circular Vibrating Screen

The eccentric shaft circular vibrating screen is a heavy-duty and highly efficient screening equipment that uses an "eccentric shaft" as its core excitation source. Unlike ordinary circular vibrating screens that use block eccentric vibration generators, its excitation force directly comes from the high-speed rotation of a heavy-duty rotating shaft (i.e., the eccentric shaft) that runs through the screen box and has eccentric blocks at both ends. This design inherently gives it the characteristics of huge excitation force, sturdy structure, and extremely smooth operation. It is particularly suitable for heavy-duty screening conditions in large-scale mines, sand and gravel production lines, etc., where there are extremely high requirements for processing capacity, reliability, and service life. It is a "main force" equipment in the screening field.

It generates excitation force through vibration motors or excitation devices, causing the sieve box and sieve screen to vibrate periodically. The materials are thrown up on the sieve surface and move forward. Particles smaller than the sieve holes pass through the sieve screen, while particles larger than the sieve holes are discharged from the discharge end. Thus, efficient separation is achieved. It has strong processing capacity, a reliable and durable structure, stable and reliable operation, and high screening efficiency.

Symmetric shaft exciter: This is the core component of this device. A solid shaft made of high-strength alloy steel, with a straight section in the middle and adjustable eccentric blocks at the ends or specific positions. The shaft itself serves as both the transmission shaft and the excitation source, with a simple structure and direct excitation force without attenuation.
Heavy-duty box structure: The sieve box is welded from high-strength steel plates and angle steel, with extremely strong overall rigidity. It is specially designed to withstand the large excitation force generated by the eccentric shaft and the impact of large pieces of material. The bearing seats are usually integrated with the side plates of the sieve box or made of heavy castings to ensure reliable support.
Simplified transmission system: The power is directly transmitted to the eccentric shaft, eliminating some complex transmission structures, resulting in high efficiency and fewer fault points.
High-performance support and vibration isolation: Large metal helical springs or composite springs are used as support and vibration isolation devices, which can effectively bear the full weight of the equipment and buffer vibrations, ensuring smooth operation and minimal impact on the foundation.

The eccentric shaft circular vibrating screen, due to its "powerful, durable and efficient" characteristics, is the preferred equipment for the following heavy-load working conditions:
Large-scale metal mines: For the classification and screening of medium and fine crushed products after crushing of iron ore, copper ore, gold ore, etc., as well as the pre-sieving of raw ore.
Large-scale sand and gravel production lines: As a key classification equipment for the finished sand and gravel products, it is used to screen the crushed stones and machine-made sand into various commercial specifications, especially suitable for large-scale sand and gravel systems with an annual output of tens of millions of tons.
Coal industry: For the classification of raw coal, desliming, and the dehydration and desilting screening of washed coal and medium coal after washing.
Metallurgical and building materials industry: Cooling and screening of sintered ore, coke, and blast furnace return ore; separation of particle size of raw materials such as cement and quartz sand.
Major infrastructure projects: Providing core screening for temporary or permanent sand and gravel processing systems for highways, high-speed railways, and large-scale hydropower dams and other projects.

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