Sieve Shakers
Sealed Variable Frequency Rotary Sample Divider Automated Laboratory Powder and Granular Divider System
Item Number: PP-AS25
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Product Overview
This high-precision rotary sample divider is designed for the automated, representative division of bulk granular and powder samples in laboratory and industrial testing environments. Engineered in strict compliance with GB/T 474 standardized coal and mineral sample preparation methods, this system eliminates manual sampling bias by delivering true representative sub-samples across a broad array of raw materials. By combining a controlled vibratory feeder with a variable-frequency driven rotating distributor, the equipment ensures that every sub-sample reflects the exact physical and chemical composition of the original bulk material.
Designed for demanding industrial environments, the system serves critical quality control and research workflows in mining, metallurgy, coal power generation, geology, construction materials, chemical processing, and institutional research laboratories. Whether processing coarse ore fractions or fine industrial powders, the equipment provides stable operation, rapid processing throughput, and minimal cross-contamination. Its robust design accommodates diverse feed sizes while maintaining exact division ratios essential for downstream analytical accuracy.
Built with heavy-duty structural integrity and complete internal isolation, this sample dividing system instills long-term confidence in operational reliability and operator safety. All material-contacting components are fabricated from premium SUS304 stainless steel to resist abrasion and chemical degradation. Featuring an advanced dust extraction port and fully enclosed housing options, the unit effectively traps airborne particles, protecting laboratory air quality and preventing valuable sample loss during high-speed divider rotation.
Key Features
- Precision Variable Frequency Drive (VFD): Stepless rotation speed regulation from 4 to 60 r/min allows operators to fine-tune division dynamics to match specific particle size distributions and flow characteristics, ensuring optimal representative sampling.
- Integrated Electromagnetic Vibratory Feeder: Standardized vibratory feeding mechanism delivers a uniform, continuous, and non-segregated material stream directly into the rotating divider chute, preventing bridging and uneven sample distribution.
- Adjustable Vibration Amplitude: Smooth, step-free amplitude control on the vibratory feeder enables precise feed rate adjustment across varying moisture levels and particle top-sizes.
- Standardized Sample Division Ratios: Flexible division ratio configurations from 1/2 down to 1/8 deliver reliable sub-sampling yields tailored to specific analytical protocol requirements and batch sizes.
- SUS304 Stainless Steel Construction: All internal surfaces, receiving hoppers, dividing chutes, and collection buckets are constructed from high-grade SUS304 stainless steel, preventing corrosion, sample contamination, and premature wear.
- Ergonomic Quick-Release Sample Buckets: Equipped with high-capacity collection buckets featuring individual carry handles and precise positioning mounts, enabling rapid, spill-free removal and streamlined workflow turnarounds.
- Manual Indexing Turntable Mechanism: The rotary turntable can be manually rotated to align the discharge chute and collection buckets directly toward the front opening, drastically simplifying bucket access and routine cleanout.
- Dust-Tight Enclosure with Extraction Port: Fully sealed internal housing paired with a dedicated dust extraction port effectively contains airborne particulates during high-throughput operation, maintaining clean lab environments.
Applications
| Application | Description | Key Benefit |
|---|---|---|
| Coal & Coke Quality Testing | Automated division of run-of-mine coal, washed coal, and industrial coke samples according to standard preparation guidelines. | Guarantees unbiased ash, moisture, and calorific value analyses by preserving particle size distribution. |
| Metallurgical & Ore Processing | Sub-sampling of raw iron ore, sintered feeds, pelletized minerals, and non-ferrous mineral concentrates. | High throughput capacity handles heavy abrasive minerals without mechanical wear or sample distortion. |
| Construction Materials Testing | Division of crushed aggregates, cement clinker, lime, and crushed stone for structural quality control. | Accommodates large particle sizes up to 25 mm while delivering highly repeatable split fractions. |
| Chemical & Polymer Manufacturing | Representative split division of bulk chemical granules, resin pellets, catalyst supports, and dry reagents. | Full SUS304 stainless steel contact path prevents chemical cross-reactivity and sample contamination. |
| Power Generation Laboratories | High-volume preparation of pulverized coal and combustion residue samples for plant efficiency monitoring. | Fast automated processing reduces technician hands-on time and throughput bottlenecks in continuous operations. |
| Geology & Academic R&D | Fine sample preparation for geological survey cores, powder metallurgy research, and advanced material testing. | Variable speed control and adjustable feeder amplitude accommodate small, valuable experimental sample batches. |
Technical Specifications
| Specification Parameter | Model PP-AS25-600 | Model PP-AS25-500M | Model PP-AS25-400M |
|---|---|---|---|
| Base Product Identifier | PP-AS25 | PP-AS25 | PP-AS25 |
| Division Particle Size (mm) | < 25 - 6 | < 25 - 6 | < 13 - 3 |
| Division Ratio Range | 1/2 - 1/8 | 1/2 - 1/8 | 1/2 - 1/8 |
| Feed Hopper Capacity (kg) | 45 | 40 | 16 |
| Sample Bucket Capacity (kg) | 10 | 5 | 2 |
| Number of Sample Buckets (pcs) | 8 | 8 | 8 |
| Processing Capacity (kg/h) | 1800 - 1200 | 1800 - 1200 | 1200 - 600 |
| Stepless Rotation Speed (r/min) | 4 - 60 | 4 - 60 | 4 - 60 |
| Variable Frequency Motor Power (kW) | 1.1 | 1.1 | 0.75 |
| Operating Voltage (V) | 380 | 380 | 380 |
| Equipment Weight (kg) | 160 | 160 | 100 |
| Overall Dimensions (mm) | 1300 × 620 × 1300 | 1300 × 620 × 1300 | 920 × 460 × 940 |
| Enclosure / Sealing Type | Open Frame Design | Fully Sealed Dust-Tight | Fully Sealed Dust-Tight |
| Material Standard | SUS304 Stainless Steel | SUS304 Stainless Steel | SUS304 Stainless Steel |
| Compliance Standard | GB/T 474 Compliant | GB/T 474 Compliant | GB/T 474 Compliant |
| Integrated Dust Extraction Port | Optional | Included | Included |
Why Choose This Product
- Strict Standardized Compliance: Engineered specifically to exceed international standards for sample preparation (including GB/T 474 guidelines), assuring complete auditability and analytical integrity in ISO-certified laboratories.
- Unmatched Sub-Sampling Precision: The combination of a VFD-controlled rotary distributor and a uniform vibratory feeder eliminates human bias, delivering identical sub-samples with minimal standard deviation.
- Heavy-Duty Stainless Steel Construction: Robust SUS304 internal components provide exceptional resistance to physical wear, impact from heavy mineral feeds, and chemical corrosion, ensuring years of trouble-free service.
- Operator-Centric Ergonomic Design: Features such as front-indexing turntables, quick-release handles on collection buckets, and accessible VFD control panels minimize operator effort and accelerate daily sample turnover.
- Clean and Safe Work Environment: Fully sealed options equipped with integrated dust extraction ports protect laboratory personnel from harmful dust inhalation while preserving volatile sample fractions.
Contact our technical engineering team today to request a customized quote or to discuss specialized sample division configurations for your laboratory.
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