What Is a Vibro Sifter Used For? Complete Industry Guide
A vibro sifter, also called a gyratory sifter or vibrating sieve, is an industrial machine used to separate materials based on particle size. Think of it as a modern, motor-driven version of the kitchen sieve, but built for large-scale production. Its main purpose is to make sure materials are clean, uniform, and ready for the next stage of processing.
Key Functions of a Vibro Sifter
- Sieving / Screening
The machine separates bulk material into two parts: the fine particles that pass through the mesh and the oversized particles that stay on top. This helps remove lumps, foreign particles, and contaminants before packaging or further processing. - Grading / Classifying
Unlike simple sieving, grading divides material into multiple size fractions. By using several screen decks with different mesh sizes, a vibro sifter can sort one material stream into different grades. This is essential for industries that need precise particle sizes. - Scalping
Scalping means removing a small amount of oversized material from a large batch. For example, in food production, vibro sifters can remove twigs or large seeds from spices to maintain a uniform product.
Key Functions of a Vibro Sifter
- Food industry: For sifting flour, sugar, spices, and milk powder to remove lumps or impurities.
- Pharmaceuticals: To ensure powder and granules used in tablets or capsules are pure and consistent in size.
- Chemicals & Plastics: For grading pigments, polymers, and other raw materials.
- Cosmetics: To achieve fine and uniform powder textures.
Principle of the Vibro Separator
The vibro sifter works on the principle of gyratory vibration. A vertically mounted motor with eccentric weights at both ends generates multi-directional motion.
- Top weight: Produces horizontal vibrations that move material in a spiral pattern across the screen, ensuring even distribution.
- Bottom weight: Creates vertical and tangential vibrations. This helps lift the material, improves stratification, and reduces screen clogging.
By adjusting the angle and position of these weights, operators can fine-tune the speed and flow of material for different powders, granules, or even slurries.
How the Vibro Sifter Works?
- Feeding: Material is fed into the hopper above the screen.
- Vibration: The motor starts, and eccentric weights create a unique three-dimensional motion.
- Horizontal: Moves the material outward in a spiral path.
- Vertical: Lifts and stratifies the material, preventing mesh blockage.
- Separation: Finer particles pass through the mesh, while larger particles remain on top.
- Discharge: Fine particles exit through the lower outlet, and oversized particles discharge from a separate outlet.
- Stability: The entire unit is mounted on springs that absorb vibrations and prevent floor transmission.
Types of Industrial Vibro Sifters
Industrial sifters come in several designs depending on application:
- Vibratory Sifters – Includes vibro sifters and linear vibrating screens. Common in industries requiring efficient separation.
- Centrifugal (Rotary) Sifters – Use high-speed paddles to push material against a cylindrical mesh. Ideal for sticky or greasy materials.
- Gyratory Screens / Tumbler Screeners – Provide gentle gyratory action, suitable for delicate or high-precision separation.
- Ultrasonic Sifters – Add high-frequency ultrasonic vibrations to prevent mesh blinding when handling fine or electrostatic powders.
- Static Screens – Simple, stationary designs for low-volume or dewatering applications.
Why Choose JS Vibro for Vibro Sifters?
JS Vibro, based in Vadodara, Gujarat, is a trusted vibro sifter manufacturer. Established in 2015, the company has built a reputation for delivering reliable machines that operate on the gyratory vibration principle for maximum efficiency.
Their sifters are widely used in the food, pharmaceutical, and chemical industries, offering:
- High precision separation of powders, granules, and liquids
- Multiple models tailored to different industrial needs
- Superior build quality and long-lasting performance
- Strong commitment to customer satisfaction
