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9 differences between linear shakers and circular shakers

Jan. 08, 2022

Screening separates materials with different residential properties, a crucial part of the aggregate assembly line. Screening machines are classified into different types according to their framework and motion qualities, among which circular vibrating screens and linear vibrating screens are the most commonly used mining equipment. FengWang, as one of the leading Chinese linear vibrating screen manufacturers, will present the top 9 differences tips between linear and circular vibrating screens through this article.

Straight Linear Motion Vibrating Screen

1. Different Movement Trajectories

A circular vibrating screen takes advantage of centrifugal force produced by the rotation of the eccentric block in the vibrator to make the screen box, vibrator, and other components make a forced constant circular or approximate circular movement. The materials on circular vibrating screens move with screen boxes in a round movement trajector.

The linear vibrating screen uses the vibration force of the vibrating electric motor to make the material vomit on the screen and progress in a straight line.

2. Different Exciters

The linear vibrating screen exciter is composed of 2 shafts. It services the principle of vibrating electric motor, so it is additionally called a double shaft vibrating screen.

The circular vibrating screen is likewise called a solitary shaft vibrating screen because the exciter is one shaft and works with an inertia motor.

3. Different for Plugging

The material on the linear vibrating screen actions smoothly on the screen panels. If the material is fed erratically or the moisture thickness of the material is large, it is easy to block.

The material of the circular vibrating screen relocates parabola shape on the screen panels, which makes the material disperse as much as feasible. The material embedded in the screen opening can likewise jump out, and the plugging is much less.

4. Different Installation Inclination

In the manufacturing of linear vibrating screens, the inclination angle of screen surface area is slight, and the screen's height is decreased, which is convenient for the screening plant format.

A circular vibrating screen typically has a 15-20 ° installation angle to alter the movement speed of materials and the screen panels and enhance the screening effectiveness.

5. Different Materials

The linear vibrating screen is generally made from light or stainless steel plate.

The material of the circular vibrating screen is thick, as well as package body is made of manganese steel, which can resist the impact of the material in the screening process.

6. Different Shape & Structure

The linear vibrating screen can embrace an entirely shut framework without dust overflow, which is more for environmental protection.

While the exciter of the circular vibrating screen is arranged over the facility of screen box gravity, which is conducive to the quick spread of materials, the therapy capacity is higher than that of the linear vibrating screen.

7. Different Applications

The linear screen is mainly used to screen significant fragments, materials with light specific gravity, and low solidity, primarily including dry powder, fine particles, or micro powder, which are usually used in food, chemical, building materials, and pharmaceuticals industries.

A circular vibrating screen is generally used for screening materials with a large ratio, large fragment size, and high hardness, which is widely used in mines, coal preparation plants, quarries, etc. On top of that, circular vibrating screens can also be used for materials that are hard to screen.

8. Processing Capacity

A circular vibrating screen can transform the spindle so that the vibration instructions are opposite the material movement instructions. Also, the material movement rate along the screen surface area is decreased. Therefore the screening effectiveness is boosted.

9. Environmental Protection

The linear vibrating screen can adopt a fully closed structure without any dirt overflow, which is more conducive to the defense of the setting.

Circular Vibrating Screen VS Linear Vibrating Screen
TypeCircular Vibrating ScreenLinear Vibrating Screen
Feed Size≤ 400mm≤ 300mm
Panel Angle20°15°
Exciting VibrationSingle ShaftDouble Shaft
Movement TrajectoryCircularLinear
ApplicationMine, Coal , QuarryFood, Chemicals, Buildings, Pharmacy

Linear motion vibrating screens are usually used in our coal washing plants. In actual manufacturing, the selection of circular vibrating or linear vibrating screens primarily relies on the kinds of materials and application fields that users handle. The screening function is different, the selection of equipment is also different.

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