A Silo Vibro Sifter, also known as a circular vibrating screen / rotary vibrating screen, is designed for screening, grading, filtering, and removing impurities from powders, granules, and liquids.
The unique feature is the integrated feeding silo placed above the screening deck, allowing controlled, uniform feeding and improved screening efficiency.
The Silo , Vibro Sifter with Feeding Hopper and Screw conveyor systems , Powder tranfer systems , mixing stirrer with Vibro Sifter is widely used across food, pharmaceuticals, chemicals, plastics, mining, ceramics, and metallurgy.
What is a Silo Vibro Sifter?
A Silo Vibro Sifter comes with a storage silo mounted above the feed inlet. The silo allows operators to load material in bulk, while a butterfly valve controls the discharge flow into the vibrating screen.
Key Functions of the Silo:
- Enables intermittent feeding
- Provides buffering to protect the screen from direct impact
- Ensures uniform material flow, improving screening accuracy
- Reduces manual feeding, saving labor and time
- Supports connection with upstream equipment (mixers, feeders, storage tanks)
Types of Silo Vibro Sifters
1. Carbon Steel Silo Vibro Sifter
- Entire body painted with carbon steel
- Moderate wear and corrosion resistance
- Suitable for materials with no hygiene requirements, such as:
- Abrasives
- Plastics
- Sand
- Minerals
2. Stainless Steel (SS304 / SS316L) Silo Vibro Sifter
- Fabricated using food-grade stainless steel
- Resistant to acid, alkali, corrosion, and high-temperature materials (up to 300°C)
- Ideal for pharma & food industries, handling:
- Sugar, flour, spices
- Pharmaceutical powders & tablets
- Nuts, grains
- Food additives & dairy powders
- Also used in chemical, cosmetic, and fine powder industries
3. PVC Plastic Silo Vibro Sifter
- Entire structure made from PVC, metal-free, non-magnetic
- Highly corrosion-resistant
- Ideal for materials that react with metal, such as:
- Zirconia
- Fluorescent powder
- Specialty chemical additives
Advantages of Silo Vibro Sifter
- Built-in Silo with Butterfly Valve
- Provides uniform, controlled feeding
- Reduces manual intervention
- Ensures continuous or intermittent feeding
- Improves overall screening efficiency
- Protects the Screen
- Silo acts as a buffer, preventing direct impact
- Extends screen mesh life
- Wide Range of Materials
- Can screen from 500 mesh (0.028 mm) powders
- Filters liquid materials down to 5 microns
- Supports Automated Production Lines
- Silo flange can connect with upstream systems
- Fully enclosed design prevents dust leakage
- Contributes to a clean working environment
- Automatic Mesh Cleaning System
- Bouncing ball cleaning mechanism prevents mesh clogging
- Optional ultrasonic cleaning system for sticky or static materials
- Ensures consistent screening performance
- 360° Mobility
- Universal caster wheels for easy movement
- Convenient for multi-location screening operations
How Silo Vibro Sifter Works
Material is loaded into the silo.
The butterfly valve regulates discharge into the vibrating screen.
The vibro motor generates multi-dimensional vibrations causing:
- Quick separation
- Efficient grading
- Impurity removal
Mesh-cleaning bouncing balls continuously hit the screen to prevent blockage.
Finished material is discharged from separate oversize and undersize outlets.
Phase angle adjustment controls the movement pattern of the material on the screen surface.
Applications of Silo Vibro Sifter
Food & Beverage
- Sugar, flour, starch
- Milk powder
- Soybean milk
- Spices, cocoa, coffee
- Sauces & liquid filtration
Pharmaceuticals
- Tablet powder
- API
- Herbal powder
- Capsules & granules
Chemicals & Petrochemicals
- Resin powder
- Pigments
- Additives
- Detergent powder
- Paints & coatings
Metal & Mining
- Minerals
- Ceramic powder
- Electromagnetic material
- Zirconia
Plastics
- Plastic granules
- Masterbatch screening
Homecare Products
- Washing powder
- Cleaner granules
- Cosmetic powders
Structure Details
- Silo (Hopper)
- Prevents direct material impact on the screen
- Extends screen life
- Ensures stable and uniform feeding
- Universal Wheels
- Easy relocation
- 360° rotational mobility
- Screening Chamber
- Multi-layer screen decks available
- Stainless steel or carbon steel construction
- Motor & Vibration Assembly
- Generates vertical/horizontal/tilt vibrations
- Controls separation efficiency
Key Benefits
- Continuous or batch feeding
- Reduced labor & improved hygiene
- Increased screening accuracy
- Longer screen life
- Adaptable to powder, granules, and liquids
- Easy integration with process lines
