In the field of screening equipment, Weiliang separators have earned the trust of many enterprises with their high performance and innovative technology.
Weiliang S49 round separator, also referred to as three-dimensional vibrating screen, come in diameters ranging from 600 to 1500, with 1 to 5 layers available. Material options include carbon steel, 304 stainless steel, and 316L stainless steel.
Different Types of S49 Series Round Separator
S49A Vibrating Screen with “no-tool adjustment“
S49A round vibrating screen uses “no-tool adjustment device”, top and bottom “no-tool” weight system, means top force wheel for the horizontal excitation force to cause material to move across the screen cloth to the periphery. The bottom force wheel for vertical and tangential excitation force to control the retain time of raw material on the screen cloth. The angle of lead given the lower weight with relation to the upper weight provides variable control of the spiral screening pattern. Speed and spiral pattern of material travel over the screen cloth can be set by the operator for maximum throughput and screening efficiency of any screenable product … wet or dry … heavy or light … coarse or fine … hot or cold.
No-tool adjustment device: Enables rapid adjustment without disassembly, adapting to different material screening needs.
Central-Tie-down System: Secures the sieve mesh in place, preventing displacement, improving efficiency, and extending mesh lifespan.
It is worth noting that the WEILIANG “no-tool adjustment device” has been technically enhanced in its 2025 iteration.
Weiliang “no-tool adjustment device” was newly upgraded in 2025. Compared with the previous, in addition to retaining the advantages mentioned above, the more important thing is that the adjustment method has been optimized. The adjustment of the exciting force and the movement trajectory of material screening has become more intuitive and convenient, which can meet different screening requirements.
Customers can switch the screening mode within one minute. This improved separator has quality and performance comparable to American brand, also with a high performance-price ratio.
S49B Vibrating Screen – traditional eccentric-block adjustment
S49B round vibrating screen, with the “eccentric-block-type” adjustment, adjusts vibration force by changing the angle between two eccentric weights. While simple and cost-effective, this design requires disassembly for adjustments and has limited tuning range. Additionally, it lacks a center-tie-down system, making the screen cloth prone to sagging or tearing under high flow rates.
For more details, please contact WEILIANG for a customized screening solution!
Screen-cleaning System
1. Silicone Ball Cleaning System
Mechanism: Rubber or silicone balls bounce against the sieve underside, dislodging clogged particles.
Pros: Simple, low-cost, suitable for most standard materials.
Cons: Less effective for sticky or ultra-fine powders; requires periodic ball replacement.
2. Slider Cleaning System
Mechanism: Rings continuously scrape the sieve surface to prevent buildup.
Pros: Effective for sticky or flaky materials.
Cons: Noisier, has wear rate which requires periodic replacement.
3. Ultrasonic Cleaning System
Mechanism: High-frequency vibrations break particle agglomeration and eliminate static adhesion.
Pros: Ideal for ultra-fine powders (e.g., battery materials, pharmaceuticals, metal powders).
Cons: Higher cost.
S49AC Ultrasonic Vibrating Screen
WEILIANG ultrasonic vibrating screen is a high-precision screening equipment that integrates an ultrasonic cleaning system based on a conventional vibrating screen. For WEILIANG internal management, we call this model S49AC.
WEILIANG S49AC ultrasonic vibrating screen is able to successfully deal with micron-size powder and difficult to screen materials like light bulk density powders previously thought impossible. WEILIANG ultrasonic system promotes improved screen excitation throughout the screen surface with more even energy distribution and also features adjustable amplitude and frequency sweep, that improving sieving efficiency and accuracy. It also effectively breaks up agglomerates while increasing throughput. The ultrasound system provides a full automation solution for screen blinding problem to increase capacity while preventing screen damage.
Cleaning Mechanism:
- High-frequency vibration breaks up material agglomeration.
- Eliminates electrostatic adhesion.
- Generates micro-airflow to prevent particle clogging.
Specialized Design:
- Intelligent frequency tracking for optimal resonance.
- Adaptive power adjustment for varying material conditions.
Typical Applications:
New Energy:
✔ Lithium battery electrode materials (LFP, graphite, etc.)
✔ Photovoltaic silicon powder
Pharmaceuticals:
✔ Active pharmaceutical ingredients (APIs – antibiotics, TCM ultrafine powder)
✔ Pharmaceutical excipients
Advanced Materials:
✔ Silicon carbide micropowder
✔ Ceramic ink
✔ Metal 3D printing powders
Pros and Cons of Built-in and External Ultrasonic System
Currently, all WEILIANG ultrasonic devices adopt the external type.
1. Built-in Ultrasonic System
Structure:
Ultrasonic devices (transducer) integrated inside sieve. Converts electrical energy to mechanical vibration, creating material micro-suspension for better sieving performance.
Pros:
Maximum vibration efficiency (direct integration minimizes energy loss)
Cons:
- Maintenance requires full disassembly
- Overheating risk in enclosed space
- Material contamination potential
- Higher repair costs (full frame replacement needed)
2. External Ultrasonic System
Structure:
Generator/transducer mounted externally. It similarly utilizes high-frequency ultrasonic vibration to optimize sieving performance.
Pros:
- Easy access for maintenance
- No material contact (GMP compliant)
- Better heat dissipation
- Lower repair costs (modular design)
Cons:
Slight energy loss
How to Guarantee the Sealing Performance
Though we could not share the internal photos here, we welcome all clients to visit our factory for a firsthand inspection. Please let us briefly explain our sealing design in simple terms.
Conventional “Point Sealing”
Uses flat sealing strips (U-shaped gaskets)
Matches with flat sieve frame edges
Basic sealing contact area
WEILIANG “Surface Sealing” Technology
Features:
- V-angle profile on sealing gasket
- Upward-curved R-angle on sieve frame edge
- Tight V-R interlocking creates complete surface contact
Advantages:
- Superior leak prevention
- Enhanced sealing reliability
(P.S. While vibrating screens may appear similar externally, their core quality varies significantly. WEILIANG operates a 10-million-level production base equipped with TRUMPF laser cutting/bending/punching systems, robotic welding, and automated production lines. Backed by professional engineering teams, we implement strict quality control at every manufacturing stage to ensure superior precision and performance of our all sifters. Our exceptional product quality has been consistently validated by numerous client applications.)
Please feel free to contact us for your customized screening solution!
