Vibrating Sifter:The Complete Buying Guide in 2023

1.What Is A Vibrating Sifter?

A vibrating sifter, also known as a vibrating screener or a vibro sieve, is a machine used to separate and classify materials based on their particle size and shape.

The vibrating sifter consists of a screen that is vibrated by a motor or an eccentric shaft, causing the material to move across the screen and separate into different sized particles. The vibration of the screen can be adjusted to suit the specific requirements of the material being screened.

2.What Are The Different Components Of A Vibrating Sifter?

Motor

The motor is the power source that drives the vibrating sifter. It provides the necessary power to operate the machine and generate the required vibration to sift the materials.

Inlet Feed

The inlet feed is the opening through which the raw materials are introduced into the machine. It is usually located at the top or side of the sifter, and it can be customized to suit specific requirements.

Screen Assembly

The screen assembly is the main component of the vibrating sifter. It comprises a frame, screen mesh, and other essential parts. The screen mesh is the filtering surface that separates the materials based on size and shape.

Sieve Frame

The sieve frame is the supporting structure that holds the screen mesh in place. It is usually made of steel or other durable materials to withstand the vibration and pressure exerted by the materials.

Discharge Port

The discharge port is the opening through which the sifted materials are collected. It can be located at the bottom or side of the machine, depending on the design and application.

Springs

Springs are the mechanical components that provide the necessary force to generate vibration in the sifter. They are attached to the motor and sieve frame to ensure a smooth and efficient operation.

Control panel

The control panel is used to adjust the speed and amplitude of the vibrating motion, as well as other operating parameters such as time, temperature, and humidity. It allows the operator to optimize the screening process for different types of materials and conditions.

3.How Does A Vibrating Sifter Work?

A vibrating sifter works by applying vibration to the screening surface, which causes the material to move in a way that separates smaller particles from larger ones.

Here are the basic steps of how a vibrating sifter works:

• Material is fed onto the screening surface of the sifter, which is typically a wire mesh or perforated plate.
• A vibration motor or electric motor with an eccentric weight is mounted onto the sifter. As the motor rotates, the weight causes the entire sifter to vibrate.
• The vibration causes the material to move across the screening surface, with smaller particles passing through the mesh or holes and larger particles remaining on top.
• Depending on the design of the machine, multiple layers of mesh screens may be used to further separate the material by size.
• The separated material is then discharged from the sifter through a chute or conveyor.
• The vibrating sifter can be adjusted to control the amplitude and frequency of the vibration, which can affect the screening efficiency and accuracy.

4.What Are Some Common Industries That Use Vibrating Sifters In Their Manufacturing Processes?

Here are some common industries that use vibrating sifters in their manufacturing processes:

Food Industry

The food processing industry uses vibrating sifters to remove impurities and foreign matter from raw materials such as grains, flour, and spices. They also use them to grade and classify products based on size, shape, and weight. Vibrating sifters help maintain the quality and purity of food products by removing unwanted contaminants.

Pharmaceutical Industry

The pharmaceutical industry uses vibrating sifters to ensure the purity and quality of their products. These machines are used to remove foreign particles, oversize particles, and agglomerates. They also help in sieving and grading of powders, granules, and tablets.

Chemical Industry

Vibrating sifters are used in the chemical industry to classify and separate different chemical compounds based on their particle size, shape, and other physical properties. They are used in the production of various chemicals, such as fertilizers, pesticides, and pharmaceuticals.

Cosmetic Industry

The cosmetic industry uses vibrating sifters to separate and classify different types of powders, creams, and lotions. These machines help in removing impurities, oversize particles, and lumps from the final product. They also help in grading and sieving of cosmetic products.

Mining and Mineral Processing Industry

The mining and mineral processing industry uses vibrating sifters to screen and grade a variety of materials, including coal, minerals, and ores. These sifters are used to remove oversize or undersize particles, and they can help to improve the efficiency of the extraction process.

Recycling Industry

The recycling industry uses vibrating sifters to separate and sort different types of materials, such as plastics, metals, and glass. These sifters are used to improve the efficiency of the recycling process and to ensure that the correct materials are sorted and recycled.

5.What Are The Advantages Of Using A Vibrating Sifter In Material Processing?

Efficient Separation

One of the main advantages of using a vibrating sifter is its ability to efficiently separate materials of different sizes and shapes. The screen’s vibration causes the particles to move and spread out evenly, which allows the smaller particles to pass through the screen while the larger ones are retained. This ensures that the final product is of consistent quality and free from impurities.

Accurate separation

A vibrating sifter can accurately separate materials based on size. The machine has different screens with varying mesh sizes, which allows it to classify materials accurately. This is important in the food and pharmaceutical industries where precise separation is required.

Reduced downtime

A vibrating sifter requires minimal maintenance and downtime. The machine is easy to clean and does not have many moving parts that can break or wear out. This reduces the need for repairs and increases uptime.

Improved product quality

A vibrating sifter can improve the quality of the processed material. The machine can remove impurities and foreign particles from the material, which can improve its overall quality. This is especially important in the food and pharmaceutical industries where product quality is crucial.

6.What Are The Different Types Of Vibrating Sifters Available In The Market?

There are several different types of vibrating sifters available in the market, each designed for a specific application. In this article, we will discuss the most common types of vibrating sifters and their features.

Circular Vibrating Sifter

This is the most commonly used type of vibrating sifter. It consists of a single or multiple screens that are mounted on a circular frame. The material to be sifted is fed onto the center of the screen, and the machine vibrates in a circular motion. The particles are separated by size and sent out through different outlets.

Rectangular Vibrating Sifter

This type of sifter is used for applications that require a larger screening area. The rectangular frame allows for larger screens to be used, which increases the screening capacity of the machine. The rectangular design also makes it easier to fit into tight spaces or integrate with other machines.

Gyratory Vibrating Sifter

This type of sifter is designed for applications that require high-capacity screening. The machine consists of a circular screen that is mounted on a horizontal frame. The screen vibrates in a circular motion, which causes the material to move along the screen’s surface. The particles are separated by size and sent out through different outlets.

Ultrasonic Vibrating Sifter

This type of sifter uses high-frequency vibrations to improve the accuracy of the screening process. The machine generates ultrasonic waves that vibrate the screen at a very high frequency. This causes the particles to move along the screen’s surface, improving the accuracy of the separation process.

Centrifugal Vibrating Sifter

This type of sifter is designed for applications that require high-speed screening. The machine consists of a cylindrical screen that rotates at a high speed. The material to be sifted is fed onto the screen’s surface, and the centrifugal force generated by the rotation separates the particles by size.

7.What Types Of Materials Can Be Processed With A Vibrating Sifter?

The materials that can be processed with a vibrating sifter include:

Powders

Vibrating sifters are particularly effective at sifting and separating powders of different sizes and shapes. Powders can be abrasive, cohesive, or fragile, and they may contain impurities or contaminants that need to be removed. Examples of powders that can be processed with a vibrating sifter include flour, sugar, spices, milk powder, pharmaceutical powders, and metal powders.

Pellets

Vibrating sifters can also be used to process pellets, which are small, cylindrical, or spherical objects that are used in various industries, such as agriculture, plastics, and pharmaceuticals. Pellets may need to be classified or separated based on their size, shape, or density, which can be achieved with a vibrating sifter.

Fibrous materials

Fibrous materials such as paper, textiles, and wood pulp can also be processed with a vibrating sifter. The machine can be used to separate the fibers from other materials and ensure product quality.

Plastics and polymers

Vibrating sifters can be used to remove oversized particles or foreign matter from plastic pellets or powders, which are used in the production of various plastic products.

8.How Does A Vibrating Sifter Compare To Other Types Of Screening Equipment?

Compared to other types of screening equipment, such as a stationary screen or a trommel screen, a vibrating sifter is more efficient and accurate in separating materials. It has a higher screening capacity, a smaller footprint, and can screen a wide range of materials, including powders, pellets, and granules.

Additionally, a vibrating sifter is easy to operate and maintain, which makes it a popular choice for many industries, including food processing, pharmaceuticals, and chemical processing. Overall, a vibrating sifter is a versatile and effective tool for separating and classifying materials.

9.What Is The Difference Between A Single Deck And A Double Deck Vibrating Sifter?

There are two types of vibrating sifters: single deck and double deck. The main differences between the two are as follows:

Number of screens

The primary difference between single and double deck vibrating sifters is the number of screens or decks they have. Single deck sifters have only one screen, whereas double deck sifters have two screens. This difference affects the efficiency and capacity of the sifter. Double deck sifters can process more material in a shorter time due to the additional screen, while single deck sifters may be more suitable for smaller scale operations.

Size and Shape of Materials

Single deck sifters are ideal for screening small to medium-sized materials, while double deck sifters are better suited for larger materials. The multiple screens in a double deck sifter can handle materials of different sizes and shapes, which allows for more precise grading and sorting of materials.

Maintenance and Cleaning

Single deck sifters are generally easier to clean and maintain than double deck sifters. This is because the single screen in a single deck sifter is easier to remove and clean, whereas the multiple screens in a double deck sifter can be more difficult to access and clean.

10.How Does The Size And Shape Of The Screen Mesh Affect The Performance Of A Vibrating Sifter?

The performance of a vibrating sifter, also known as a vibrating screen, is influenced by the size and shape of the screen mesh. The mesh is the part of the sifter that separates the particles according to their size and shape. The mesh consists of a series of parallel wires or rods that form a grid pattern. The size and shape of the mesh determine how well the sifter can separate different types of particles.

Mesh Size

The size of the mesh refers to the number of openings per linear inch or centimeter. The larger the mesh size, the fewer the openings, and the larger the particles that can pass through the mesh. Conversely, the smaller the mesh size, the more the openings, and the smaller the particles that can pass through the mesh. The mesh size affects the sifting capacity and efficiency of the vibrating sifter.

A larger mesh size is suitable for sifting larger particles or removing impurities from a bulk material. A smaller mesh size is ideal for separating finer particles from a mixture. However, a smaller mesh size reduces the sifting capacity and can lead to clogging, which reduces the efficiency of the sifter.

Mesh Shape

The shape of the mesh also affects the performance of the vibrating sifter. The two most common shapes of mesh are square and rectangular. The square mesh has equal openings in all directions, while the rectangular mesh has longer openings in one direction.

The square mesh is ideal for sifting uniform particles, such as sand or gravel. The rectangular mesh is suitable for sifting particles that have a preferred orientation, such as wood chips or fibers. The rectangular mesh allows the particles to align with the longer openings, facilitating their separation from the mixture.

11.What Are Some Important Considerations When Integrating A Vibrating Sifter Into A Production Line?

Integrating a vibrating sifter into a production line is a significant investment for any manufacturing company. It is essential to consider several factors when making this decision. Here are some important considerations when integrating a vibrating sifter into a production line:

Material Properties

The type of material being screened is an essential consideration. Material properties such as size, density, moisture content, and shape can significantly affect the performance of a vibrating sifter. It is crucial to select a sifter that can handle the specific material properties to achieve the desired outcome.

Capacity

The production rate required for a production line is an essential factor when selecting a vibrating sifter. A sifter with a high capacity should be chosen for a line that requires a high production rate, and a sifter with a lower capacity should be chosen for a line with a lower production rate.

12.What Is The Expected Lifespan Of A Vibrating Sifter?

The expected lifespan of a vibrating sifter can vary greatly depending on several factors, including the quality of the equipment, frequency of use, maintenance practices, and the material being sifted. However, with proper maintenance and care, a vibrating sifter can typically last anywhere from 5 to 20 years. Regular inspections, lubrication, and replacing worn-out parts can help prolong the lifespan of the equipment.

13.How Can You Troubleshoot Common Problems With A Vibrating Sifter?

Like any other machine, a vibrating sifter can experience problems that may affect its functionality. Some of the common problems that a vibrating sifter may experience include.

Poor vibration

This problem is often caused by a worn-out motor or motor mount. To troubleshoot this issue, you need to inspect the motor and motor mount for any signs of wear and tear. If you notice any signs of wear and tear, you should replace the affected parts.

Excessive noise

Excessive noise is another common problem with vibrating sifters. The source of the noise can be the bearings, motor, or other mechanical components. To troubleshoot this issue, you should check the bearings for wear and tear and replace them if necessary. You should also ensure that the motor is correctly mounted and lubricated. Additionally, you can consider using sound-absorbing materials to reduce the noise level.

Inconsistent sieving

Inconsistent sieving is often caused by clogged mesh screens or a damaged screen frame. To troubleshoot this issue, you should inspect the mesh screens for any signs of clogging and clean them. You should also inspect the screen frame for any damage and replace any damaged parts.

Overheating

Overheating can be caused by a malfunctioning motor or poor ventilation. To troubleshoot this issue, you should inspect the motor and ensure that it is functioning properly. You should also inspect the machine’s ventilation system and ensure that it is not clogged.

Uneven feed rate

Uneven feed rate is often caused by an improperly adjusted feed gate or a clogged feed hopper. To troubleshoot this issue, you should inspect the feed gate and ensure that it is properly adjusted. You should also inspect the feed hopper for any signs of clogging and clean it.

Conclusion

The vibrating sifter is an important piece of equipment for manufacturing and processing industries. As highlighted in this buying guide, selecting the right vibrating sifter can greatly impact the efficiency and effectiveness of your operations. Allpack China is a leading manufacturer and supplier of vibrating sifters that meet the highest standards of quality and performance. With their expertise and commitment to customer satisfaction, they are the best choice for anyone looking for top-notch vibrating sifters for their manufacturing needs. Contact Allpack China today and enjoy the benefits of using high-quality vibrating sifters in your operations.