Circular Screening Machine
Share to:
The circular screening machine utilizes a vibrating motor as the vibration source. When the motor operates, it generates centrifugal force, causing the entire equipment to vibrate in a circular trajectory. Material enters the screen machine through the upper feed opening. Under the influence of vibrational force, the material performs a throwing motion along the screen surface. Material smaller than the screen mesh aperture passes through the screen and falls to the lower layer or is discharged as undersize material; material larger than the screen mesh aperture remains on the screen surface and moves toward the discharge opening with the vibration, achieving material grading, screening, or impurity removal.
Machine Overview and Functional Description
The screen body is typically circular and made of stainless steel, comprising components such as the screen frame and screen mesh. The screen frame supports the screen mesh to ensure stable screening operations; the screen mesh is the core screening component, available in various mesh sizes to meet specific screening requirements, such as metal wire woven mesh or perforated plate mesh. Commonly used is a vibrating motor, though some models employ an exciter mechanism. Vibration motors are generally installed on the upper or side of the screen body. By adjusting the angle and weight of the motor’s eccentric blocks, the magnitude and direction of the vibrating force can be altered to accommodate different material screening requirements. Typically, vibration-damping springs are installed between the screen body and the base to reduce the transmission of screen machine vibrations to the foundation while ensuring stable vibration of the screen body, thereby extending the service life of both the equipment and the foundation. The feed opening is typically located at the center of the top of the screen body, facilitating uniform material entry onto the screen surface. The discharge openings are distributed at different levels on the sides of the screen body, corresponding to the discharge of materials of different screening grades, with the number and position of openings adjustable as needed.
Application Areas and Suitable Materials
Food industry: Used for screening materials such as flour, starch, sugar, and salt to remove impurities and ensure uniform particle size, such as removing bran and lumps in flour production; in fruit and vegetable processing, it is also used for juice filtration and grading of fruit and vegetable powders.
Chemical Industry: Used for processing resins, pigments, and coatings to achieve coarse and fine grading of materials. For example, in paint production, it is used to screen pigment particles of different particle sizes to ensure product quality stability.
Pharmaceutical Industry: Used for screening pharmaceutical raw materials to remove impurities and grading granular pharmaceutical products, meeting the strict hygiene and precision requirements of pharmaceutical production.
Construction materials industry: Playing a role in the screening of sand and gravel, cement, ceramic raw materials, etc., to screen sand and gravel aggregates of different particle sizes, providing qualified raw materials for construction, ceramics, and other production processes.
Technical Specifications
| Circular screen parameters | ||||||
|---|---|---|---|---|---|---|
| Specifications | ZZHD-1000 | ZZHD-1200 | ZZHD-1500 | ZZHD-1600 | ZZHD-2000 | ZZHD-2600 |
| Screening area (m²) | 0.71 | 1.11 | 1.6 | 1.83 | 2.62 | 5.31 |
| Number of screening layers (N) | 1—5 | 1—5 | 1—5 | 1—5 | 1—5 | 1—5 |
| Area occupied (sq. m) | ≥0.81 | ≥1.57 | ≥2.3 | ≥2.5 | ≥3.24 | ≥6.76 |
| Drive power（kw） | 1.5 | 1.5 | 3 | 3 | 4 | 4 |
| Reference weight（kg） | 400 | 480 | 850 | 890 | 990 | 1660 |
Structural Design and Working Principle
1. Replaceable Screen Mesh
The screen mesh can be easily removed and replaced according to different material characteristics and screening-size requirements. Various mesh sizes are available for flexible production.
2. Rotatable Discharge Outlet
The discharge outlet can be rotated and adjusted to different directions, making it convenient to connect with collection containers, conveyors, or other processing equipment.
3. Vibration-Damping Springs
High-strength springs are installed at the bottom to support stable vibration, reduce impact on the machine frame, and ensure smooth and efficient screening operation.
4. Dustproof Cover with Dust Extraction Port
The fully enclosed stainless-steel cover helps prevent dust leakage during screening. The reserved port can be connected to a dust collection system or ventilation hose, providing a cleaner working environment.
FAQs
- Can a circular vibrating screen handle my type of material? For example, materials with high moisture content or high viscosity—how effective is the screening?
Answer: Circular vibrating screens are suitable for most materials, but materials with excessively high moisture content or high viscosity may cause screen blockage, affecting efficiency. If your material is special, we recommend providing material properties (such as moisture content, particle size, stickiness, etc.), and we can conduct simulation tests or recommend anti-clogging devices (such as ball-cleaning screens or ultrasonic assistance) to optimize performance.
- Can the production capacity of a circular vibrating screen meet my production needs? How do I determine the appropriate size?
Answer: Production capacity is determined by factors such as screen area, number of layers, and vibration parameters. You can provide the hourly processing volume and particle size requirements before and after screening. We will use our experience and formulas (effective screening area × material screening rate, etc.) to calculate and recommend the appropriate specification. For example, for high processing volumes, we prioritize models with larger diameters and multiple layers of screens.
- What is the price of a circular vibrating screen? Are the maintenance costs high?
Answer: The price is influenced by the model (diameter, number of layers), material (stainless steel/carbon steel), and configuration (standard motor/explosion-proof motor), ranging from several thousand to tens of thousands of dollars. Maintenance primarily involves screen replacement (wear parts, depending on material abrasion, typically costing several hundred to over a thousand dollars) and motor maintenance (regular inspections, low cost). Overall maintenance is straightforward, and we will provide a list of wear part prices and maintenance guidelines.
- Is the installation of a circular vibrating screen complicated? Do you offer installation and commissioning services? How are post-installation issues resolved?
Answer: Installation follows standard procedures (e.g., securing the base, connecting the vibration source, and adjusting the level). We provide installation manuals and videos, and can offer remote guidance or on-site repairs. Core components (e.g., motors) are covered by a warranty for free replacement within the warranty period.
- What are the available shipping methods for the goods?
Common transportation methods include sea freight, air freight, and land freight. You should select the appropriate transportation method based on factors such as the nature of the goods, quantity, and delivery date.
Compliance and Certification Standards
At HONGDI Machine, we prioritize operational safety, electrical stability, and rigorous hygiene across all our custom industrial machinery. As a verified SGS-audited manufacturer, our equipment undergoes strict testing to meet and exceed global manufacturing regulations.
As demonstrated in the certification documents, our core product categories hold official CE Certifications, fully complying with the strict European Machinery Directives and Electromagnetic Compatibility (EMC) standards.
Key safety and quality guarantees include:
Certified Safe Operation: Advanced electrical and mechanical engineering that protects your facility’s personnel and ensures uninterrupted daily workflows.
Sanitary Stainless Steel Construction: Premium food-grade stainless steel contact parts designed for simplified washdowns, preventing cross-contamination and meeting strict food safety compliances.
Global Export Readiness: Dependable, customized equipment built to perform seamlessly in diverse international manufacturing environments.
Whether you are integrating a complete automated production line or a standalone unit, our CE-certified systems guarantee stable, continuous operation while protecting your product’s integrity.
Request a Free Quote
Product Categories
Technical Articles
