Direct Discharge Sifter for Efficient Powder Screening and Continuous Discharge
High-performance direct discharge sifter designed for continuous powder and granule screening with fast material flow, high efficiency, and easy maintenance.
Direct Discharge Sifter is a high-performance screening machine designed for rapid material separation and direct discharge of qualified particles. With compact structure, high screening efficiency, and easy maintenance, it is widely used for powder and granule processing industries.delivering stable, high-volume powder separation all day long.
What Is a Direct Discharge Sifter?
The Direct Discharge Sifter can be configured with either a single-motor or dual-motor drive system, where the exciting force is generated by unbalanced eccentric weights mounted at the top and bottom ends of the horizontal motor shaft. Upon entering the unit, the material follows an elliptical trajectory across the screen surface driven by the vibration source. As the material rapidly and repeatedly passes through the mesh, the vibration force continuously acts to separate, break up, and reorient the particles, facilitating rapid screening; material that cannot pass through the mesh is discharged via the upper outlet following the machine’s motion path, thereby completing the screening process.
How Does a Direct Discharge Sifter Work?
A vibration motor utilizes two sets of eccentric weights (unbalanced weights) located at the upper and lower ends of its shaft to convert the motor’s rotational motion into a combined force—comprising horizontal, vertical, inclined, and centrifugal components—which is then transmitted to the screen surface to achieve the screening effect. Adjusting the phase angle and weight of the upper and lower eccentric weights allows for the modification of the exciting force magnitude and the material’s movement trajectory.
Features
1. High power and high processing capacity
Powered by dual motors, it delivers greater vibration force than other screening machines, thereby enhancing production output and processing capacity.
2. Low energy consumption and continuous operation
With robust screening capabilities, it supports 24-hour continuous production and enables automated operations for superior performance.
3. Dust-free, hygienic, and reliable
Features a tight seal that prevents leakage when screening liquids and stops dust from escaping, ensuring excellent environmental performance.
4. Flexible customization
Highly configurable to meet specific processing volumes, mesh specifications, and production requirements.
5. Simple structure and easy disassembly
Designed for easy assembly and disassembly; both the interior and exterior are simple to clean, with no sanitary dead zones, ensuring hygiene.
6. Wide range of screenable materials
Widely used for coarse and precision screening of granules and powders across industries such as flour, starch, laundry detergent, metal powders, additives, chemicals, and non-metallic minerals.
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Applications
Battery Industry
Graphite powder, cathode materials, anode materials, battery additives.
Mineral Industry
Mineral powder, calcium carbonate, silica, limestone powder.
Powder & Granule Processing Industry
Ceramic powder, metal powder, abrasive materials, industrial additives.
Technical Specifications
| Model | Screen Diameter | Capacity | Mesh Size | Motor Power | Voltage | Material |
| YJP-600 | 600 mm | 200–500 kg/h | 20–500 mesh | 0.25 kW | 220V / 380V | SS304 / SS316L |
| YJP-800 | 800 mm | 300–800 kg/h | 20–500 mesh | 0.55 kW | 220V / 380V | SS304 / SS316L |
| YJP-1000 | 1000 mm | 500–1200 kg/h | 20–500 mesh | 0.55kW | 220V / 380V | SS304 / SS316L |
| YJP-1200 | 1200 mm | 800–2000 kg/h | 20–500 mesh | 0.75 kW | 220V / 380V | SS304 / SS316L |
| YJP-1500 | 1500mm | 1200-2500kg/h | 20–500 mesh | 1.1kw | 220V / 380V | SS304 / SS316L |
How to Select the Right Direct Discharge Sifter?
When selecting a straight-discharge vibrating screen, factors such as material characteristics, throughput requirements, and specific customization needs should be considered. Regarding material characteristics, assessments should focus on flowability and material compatibility.
Regarding material flow characteristics:
if the material consists of dry, free-flowing powder or granules without agglomeration, the required excitation force is relatively low, making a single-motor direct-discharge vibrating screen a suitable choice.
If the material tends to clump (e.g., due to moisture) and has poor flowability, requiring strong vibration to break up clumps and improve flow, a dual-motor direct-discharge vibrating screen is recommended.
Regarding material suitability:
If the material is dry, non-corrosive, and conventional—such as sand, gravel, coal, or ore—a straight-discharge sieve made of carbon steel is a suitable choice; carbon steel offers high hardness, excellent impact and wear resistance, and a lower price point compared to stainless steel.
If the material is moist, corrosive, chemically active, or subject to strict hygiene requirements, stainless steel is recommended; it is easy to clean, highly corrosion-resistant, and resistant to rusting.
Regarding throughput requirements:
In addition to standard diameters ranging from 600mm to 1500mm, straight-discharge vibrating sieves can be custom-manufactured with diameters of 400mm, 1800mm, and 2000mm; this comprehensive range of models accommodates most production needs. A 400mm-diameter unit can process approximately 5–15 tons of material per hour, while a 2000mm-diameter unit can handle around 300 tons per hour. Given comparable configurations, a larger diameter generally results in higher processing capacity but also requires a larger footprint.
Regarding custom-made orders：
Standard screening models often struggle to meet the demands of every operating environment; Yuanjing’s straight-discharge screen supports custom, non-standard designs. To address issues such as mesh blinding and excessive dust generation during fine powder screening, the unit can be equipped with an ultrasonic mesh cleaning system and an explosion-proof motor, ensuring continuous, stable operation. For multi-station workflows, optional locking swivel casters allow for flexible equipment relocation. When processing highly abrasive materials like quartz sand or ore over extended periods, wear-resistant liners can be added to prolong the machine’s service life. The entire unit can be customized to suit specific production conditions, effectively enhancing screening efficiency.
Customized Projects
Supports various non-standard customizations to meet diverse operating conditions.
Bracket-mounted
ultrasonic
corrosion-resistant
hopper-type
Why Choose Our Circular Tumbler Screen
Professional Screening Equipment Manufacturer
With extensive experience in screening technology, we provide reliable Direct Discharge Sifter solutions for various industrial applications.
Customized Screening Solutions
We offer flexible customization options, including machine size, mesh selection, material, and configuration to meet different production requirements.
Strict Quality Control
Each Direct Discharge Sifter is manufactured with high-quality materials and tested to ensure stable performance, durability, and long service life.
Global Industrial Applications & Support
Our screening equipment is widely used in food, chemical, pharmaceutical, battery, and mineral industries, supported by professional technical service.
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Vibrating Screen and Conveyor Machine Manufacturer & Supplier
Built for precision screening, reliable performance, and flexible industrial applications,
Yuanjing rotary vibrating screens are trusted by customers worldwide.
Global Project Experience
Yuanjing products are exported to 50+ countries and regions, serving industries including food, chemicals, pharmaceuticals, mining, and new energy.
Strong Manufacturing Capability
Advanced production lines with laser cutting, CNC machining, automatic welding, and strict quality inspection ensure consistent product quality.
Accurate & Stable Separation
Optimized vibration design delivers even material flow, high screening accuracy, and stable long-term operation.
Customized Screening Solutions
Yuanjing offers flexible configurations in diameter, mesh size, deck layers, and material options to fit your exact process requirements.
FAQs
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