Vibrating Screen
Filtration Equipment
1. Product Overview
A vibrating sieve grades and dewaters bulk solids by using the vibration produced by a vibratory motor or exciter to loosen, stratify, and convey material across the screen deck. The machine is built around a screen box, exciter, damping springs, and a drive assembly. It is widely used for size classification, desliming, and dewatering in the mining, coal, chemical, and food industries. Key benefits include high throughput, efficient screening, strong resistance to blinding, and adjustable amplitude and frequency.
2. Working Principle
The vibratory motor drives the screen box at high frequency, causing material on the deck to undergo a tossing, forward motion. Particles finer than the aperture pass through the mesh into the lower deck or collection bin, while oversize continues along the deck to the discharge point, delivering sharp separation by particle size.
3. System Classification
By Motion Trajectory:
Circular Vibrating Screen: circular throw trajectory with strong material agitation — best for coarse-lump classification and coal desliming.
Linear Vibrating Screen: linear trajectory with rapid conveyance — suited to dewatering, media recovery, and classifying fine materials.
Rotary Vibrating Screen: three-dimensional (gyratory) motion with multi-deck stacking — used for powder grading, de-dusting, and fine screening in food and pharmaceutical applications.
4. Detailed Technical Parameters
4.1 Common Materials
| Material | Applicable Components | Remarks |
|---|---|---|
| Carbon Steel Q235B | Screen box, frame | Mining and coal industry preferred, wear-resistant |
| 304 Stainless Steel | Screen box, mesh | Food, pharmaceuticals, fine chemicals |
| Polyurethane (PU) | Screen panel/mesh | Excellent wear resistance, long life, anti-blinding |
4.2 Typical Specification Table
| Screen Size (W×L) | Layers | Aperture Size | Amplitude | Motor Power |
|---|---|---|---|---|
| 800×2000 | 1～2 | 0.5～50mm | 2～6mm | 2×1.5 |
| 1200×3000 | 1～2 | 1～80mm | 3～8mm | 2×3.7 |
| 1500×4000 | 1～3 | 2～100mm | 4～10mm | 2×7.5 |
4.3 Design Conditions & Performance
| Parameter | Specification |
|---|---|
| Vibration Frequency | 750～1500 rpm |
| Screen Inclination | 15°～30° (Circular); 0°～8° (Linear) |
| Capacity | 5～500 t/h (depending on material and aperture) |
| Screening Efficiency | 85%～98% |
5. Electrical Parameters
| Region | Voltage | Frequency |
|---|---|---|
| China/Russia/Central Asia | 380V | 50Hz |
| Middle East/Southeast Asia/Africa | 400V / 415V | 50Hz |
| South Korea | 380V | 60Hz |
| Americas (if required) | 440V / 480V | 60Hz |
| Note: Vibrating motor must have specified voltage/frequency; explosion-proof vibrating motors required in hazardous areas. |
6. Core Component Selection
| Component | Brand/Material | Features & Applications |
|---|---|---|
| Vibrating Motor | Xinxiang/Antai/Custom | Adjustable eccentric block for amplitude, high excitation force |
| Screen Mesh/Panel | Custom matched | Woven mesh/Punched plate/PU slotted, anti-blinding design |
| Shock-absorbing Springs | National standard/Custom | Rubber/Steel springs, noise reduction |
| Screen Box | Custom processing | CS/SS welded, annealed to relieve internal stress |
7. Typical Application Fields
Mining: ore sizing and tailings dewatering.
Coal: raw-coal sizing, desliming, and medium recovery.
Chemicals: fertilizers and plastic-pellet classification.
Food: flour and additive de-dusting.
8. Design Standards & Certifications
| Standard | Description |
|---|---|
| GB/T 15706-2012 | General principles for mechanical safety design |
| ISO 9001:2015 | Quality Management System |
| CE / EAC / GOST-R | Available upon request for international orders |
9. Custom Optional Configurations
| Option | Details |
|---|---|
| Motion Trajectory | Circular / Linear / Rotary |
| Screen Type | Woven mesh / Punched plate / PU slotted / Wedge wire |
| Drive Method | Vibrating motor direct / Normal motor + exciter |
| Special Design | Explosion-proof / Fully enclosed dust cover / Ultrasonic cleaning |
10. Warranty Terms
| Equipment Status | Warranty Period | Warranty Scope |
|---|---|---|
| Brand New | 12 months | Screen box structure, vibrating motor, springs |
| Refurbished | 6 months | Screen box structure, vibrating motor, springs |
| Idle | 3 months | Main functional components |
11. Packaging & Delivery
| Item | Packaging Method |
|---|---|
| Main Screen Box | Steel strap bundled nude or tarpaulin wrapped |
| Vibrating Motors / Springs | Fully enclosed wooden cases |
| Spare Screens | Wooden cases or waterproof sealed packaging |
| Container Capacity Estimation (For reference only, subject to actual configuration): | |
| Small model (≤1200×2500): Approx. 1x 20'GP | |
| Medium-large model (>1200×2500): Approx. 1x 40'OT or Bulk carrier | |
| On-site installation and commissioning guidance available. |
12. Information Required for Inquiry
12. Information Required for Inquiry: material name and particle-size distribution, bulk density; required capacity; mesh/aperture; moisture and stickiness; preferred equipment condition (new / refurbished / idle); delivery terms (FOB / CIF / DDP); destination port.