Vibro Sifter Machine for Powder & Granule Screening
A vibro sifter machine is designed for efficient powder screening and granule screening in industrial production. Using controlled vibration, the machine separates materials by particle size and helps remove oversized particles, impurities, and agglomerates. As a reliable vibrating sifter machine, it can be used for a wide range of materials in the food, chemical, pharmaceutical, ceramic, and metal powder industries. Different screen diameters, mesh sizes, and configurations are available to meet various capacity and screening requirements.
What Is a Vibro Sifter Machine?
The vibro sifter, also known as a vibrating sieving machine, is one of the mainstream vibratory sifters for powder processing and the most widely used screening device. It operates with a three-dimensional circular motion, delivering outstanding screening precision while effectively preventing screen clogging, perfectly matching the processing demands of fine and ultra-fine powders.
All machine parts that come into direct contact with raw materials are manufactured from Q235 carbon steel, SS316L stainless steel, SS304 stainless steel and other customizable materials. This type of rotary vibrating screen can be equipped with 1 to 5 screen layers, realizing multi-stage particle size classification in one single feeding cycle. One single unit can replace several separate screening machines, bringing higher production efficiency and saving workshop space, which fits diverse industrial production scenarios.
How Does a Vibro Sifter Machine Work?
When loose bulk materials—comprising a mixture of particles of varying sizes and coarseness—enter the screen surface, the vibration of the screen box causes the material layer to disperse.
Smaller particles seize this opportunity to pass through the gaps and migrate to the lower screen deck; conversely, larger particles, unable to pass due to the narrowness of the gaps, remain on the screen surface. Consequently, the originally disordered mass of particles undergoes separation—specifically, a stratification based on particle size—establishing a distinct arrangement pattern in which finer particles settle at the bottom while coarser particles remain at the top.
As the fine particles reach the screen surface, those smaller than the mesh apertures pass through, thereby achieving the final separation of coarse and fine grains and completing the screening process.
Structure of the Vibro Sifter
Vibration Motor
This motor generates multi-plane vibrations in the vibrating screen, a motion that accelerates the passage of material through the various screens.
Vibration Damping Springs
These allow the entire upper section of the machine to vibrate freely, helping to minimize power consumption, prevent vibration transfer to the floor, and reduce noise.
Сетка сита
Maintains tension to facilitate the movement of material along the direction of vibration. This can be either horizontal or vertical. A single machine can achieve both active and gentle material separation simultaneously.
Inlet/Outlet Ports
The inlet features a baffle design to ensure uniform material feeding, while the outlet is equipped with a valve to regulate the discharge rate.
Features of the Vibro Sifter
Multi-layer sieving:
Available with 1–5 screening layers, depending on the machine model. Multiple layers allow materials to be separated into several particle size fractions in one operation.
Wide mesh range:
Supports screen mesh specifications from 2 to 400 mesh, making the vibro sifter machine suitable for both coarse screening and fine powder separation. When screening fine powders, material properties and mesh selection can affect the risk of blockage. Learn more about why fine powder blinds screen mesh and how to prevent it.
Multiple machine sizes:
Available in models from 400 to 1800, with screen diameters ranging from Φ380 mm to Φ1770 mm to meet different production requirements.
Flexible effective screening area:
The effective screening area ranges from 0.1 m² to 2.32 m², allowing customers to select a suitable model based on material characteristics and required throughput.
Different screening configurations:
Smaller models such as 400 and 600 are available with 1–3 layers, while larger models can be configured with up to 5 layers for multi-grade particle separation.
Adjustable vibration power:
Equipped with vibration motors ranging from 0.25 kW to 3 kW, depending on the machine model and screening area.
High-precision particle separation:
Different mesh specifications and multi-layer configurations help achieve consistent particle size separation based on the material and process requirements.
Suitable for different materials:
The vibro sifter can be configured with different screen meshes and machine sizes for powders, granules and other bulk materials used in industrial processing.
Vibro Sifter Machine Specifications
The following are the main technical specifications for this vibrating screening machine. The equipment supports customization, and all parameters can be adjusted to meet your specific screening requirements for powders, granules, and slurries.
| Модель | 400 | 600 | 800 | 1000 | 1200 | 1500 | 1800 |
| Screen Diameter (mm) | Φ380 | Φ580 | Φ780 | Φ970 | Φ1170 | Φ1470 | Φ1770 |
| Effective Screening Area (m²) | 0.1 | 0.23 | 0.41 | 0.65 | 0.99 | 1.58 | 2.32 |
| Mesh Specification (Mesh) | 2—400 | 2—400 | 2—400 | 2—400 | 2—400 | 2—400 | 2—400 |
| Количество слоёв | 1-3 | 1-3 | 1-4 | 1-5 | 1-5 | 1-5 | 1-5 |
| Vibration Motor (kW) | 0.25 | 0.55 | 0.75 | 1.1 | 1.5 | 2.2 | 3 |
Common Types of powder sifting machines
The term “vibrating sifter” generally refers to all equipment that uses vibration to screen materials, including rotary vibrating screens, inline vibrating screens, ultrasonic vibrating screens, and other types.
Вращающийся вибрационный грохот
The equipment is customized to meet various customer requirements, with screen diameters ranging from 400 to 2000 mm, 1 to 5 layers, and materials including 304 stainless steel and carbon steel, to accommodate the screening needs of various powders and granules as well as liquid filtration requirements.
Встроенный вибрационный грохот
The machine’s feed inlet and discharge outlet are vertically aligned, allowing material to pass rapidly through the screen from top to bottom. This design is suitable for continuous impurity removal and filtration of high-volume powders and granules.
Ультразвуковое вибрационное сито
By incorporating high-frequency ultrasonic waves into the vibrating screen’s screening principle, ultra-fine powders achieve ultra-high-speed movement, keeping the material on the screen surface in a constant state of suspension. This effectively suppresses factors that cause screen clogging, such as adhesion, friction, settling, and jamming.
Vibro Sifter Machine Applications
Пищевая промышленность
Used for fine screening of powdered or granular foods such as flour, крахмал, sesame ,coconut meat and milk powder.
Химическая промышленность
Used for screening chemical powders,microcrystalline cellulose granules, industrial salt and additives to ensure product uniformity and quality.
Фармацевтическая промышленность
Used for the classification and impurity removal of pharmaceutical powders and granules to ensure drug safety.
Mining and Metallurgy
Classifies ore and metal powders to improve the efficiency of subsequent processing.
Plastics Industry
Screens plastic pellets and recycled materials to prevent impurities from affecting product quality.
Building Materials Industry
Used for the screening and classification of granular materials such as cement, sand and gravel to improve production efficiency.
Industrial Sifter Machine Solutions
Due to variations in properties such as particle size, density, and flowability, different raw materials require specific screening parameters. Yuanjing Machinery offers customized industrial screening solutions tailored to a wide range of materials.
| Материал | Specific Gravity (SG) | Размер ячейки | Метод | Capacity (kg/hr or L/hr) | Модель |
| Wheat Starch | 1 | 250 Mesh | Wet | 3200 L/hr | YJ-1200-1S |
| Мука | 0.6 | 24 Mesh | Сухой | 1500 kg/hr | YJ-1000-1S |
| Soy Sauce | 1 | 100 Mesh | Wet | 6500 L/hr | YJ-1200-1S |
| Table Salt | 1.2 | 30/80 Mesh | Сухой | 5000 kg/hr | YJ-1500-1S |
| Corn Starch | 0.6 | 40 Mesh | Сухой | 1600 kg/hr | YJ-1000-1S |
| Chinese Herb Powder | 0.8 | 80 Mesh | Сухой | 550 kg/hr | YJ-800-1S |
| PVC Resin | 1 | 10mm/5mm | Сухой | 3000 kg/hr | YJ-1200-2S |
| Polyethylene (PE) Powder | 0.45 | 48/100 Mesh | Сухой | 100 kg/hr | YJ-800-2S |
How to Choose a Vibro Sifter Machine
By Material
For fine powders and micro-powders, prioritize rotary vibrating screens; for multi-stage classification, choose multi-layer rotary vibrating screens; for chemical corrosion or cleanroom environments, select chemical-grade vibrating sieving machines.
By Output
The higher the output, the larger the equipment diameter should be, paired with the appropriate number of screening layers.For steady feeding, see our guide to matching conveying and screening capacity.
By Operating Conditions
For food, pharmaceutical, and chemical applications, 304/316L stainless steel is mandatory; for general mining and construction material applications, carbon steel is an option.
Consider Ease of Maintenance
Prioritize models with easy screen replacement and reliable sealing to reduce long-term operational and maintenance costs.
Примеры из практики
The following case studies showcase the practical screening solutions we have provided to global clients.
Case 1
The material is stevioside powder. The material has a particle size of approximately 100 mesh, a specific gravity of 0.29, and requires screening to 40 mesh. The processing capacity is 1,000 kg/h. A vibrating screen is required.
Case 2
Starch Screening and Impurity Removal — Passing through a 20–30 mesh screen; throughput of 420 kg/h; continuous 24-hour daily operation.
Case 3
Screening pepper grains. A 1-meter vibrating screen was selected, equipped with 20-mesh, 30-mesh, and 60-mesh screens. The material has good flowability, with a throughput of 100 kg per hour. Particles larger than 20 mesh account for 50%, while those smaller than 60 mesh account for 30%.
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