Top Cloud-agri DSX Series Electric Grain Sieve Analyzer

Overview

The Top Cloud-agri DSX Series Electric Grain Sieve Analyzer is a precision mechanical sieving instrument engineered for standardized particle size distribution analysis of cereal grains, oilseeds, and agricultural commodities. It operates on the principle of planar reciprocating motion generated by an eccentric linkage mechanism driven by a high-precision AC motor—ensuring consistent, repeatable sieving dynamics essential for compliance with national grain quality testing protocols (e.g., GB/T 5494–2019, GB/T 21304–2007). Designed as a benchtop unit with three-point planar support, the DSX delivers stable inertial motion without vibration transmission to adjacent instrumentation. Its compact architecture integrates a microcontroller-based bidirectional drive system, enabling programmable forward/reverse rotation cycles without power interruption—critical for multi-stage fractionation workflows in seed breeding laboratories, grain quality control labs, and agri-food research facilities.

Key Features

• Microcontroller-controlled dual-directional drive system with high-timing accuracy for reproducible cycle sequencing (forward/reverse intervals independently adjustable)
• Eccentric linkage mechanism generating uniform 100 mm planar oscillation amplitude—optimized for efficient stratification of granular samples without particle attrition
• Three-point support base ensuring mechanical stability and minimizing resonance during continuous operation at 115 ± 5 rpm
• Modular sieve frame design accommodating up to three stacked 200–220 mm diameter standard test sieves (sieves not included; compliant with ISO 3310-1 and GB/T 6003.1 specifications)
• 60 W energy-efficient AC motor with thermal protection and low-noise operation (<65 dB(A) at 1 m distance)
• Robust aluminum alloy housing with powder-coated steel chassis for long-term durability in laboratory and field-deployable environments

Sample Compatibility & Compliance

The DSX analyzer is validated for use with dry, free-flowing particulate agricultural materials including paddy rice, wheat, maize, soybean, rapeseed, barley, and sorghum. It supports sieve mesh sizes ranging from 20 µm to 8 mm (depending on user-selected sieve sets), making it suitable for both fine-grain grading (e.g., broken kernel assessment) and coarse separation (e.g., foreign material removal). The instrument conforms to fundamental requirements of ISO 22000–2018 (food safety management), GB/T 24892–2010 (grain inspection equipment general technical conditions), and aligns with sampling procedures referenced in ISO 6497:2002 (animal feeding stuffs — guidance on sampling). While the DSX itself is not certified under GLP or FDA 21 CFR Part 11, its operational repeatability and traceable timing logic support audit-ready documentation when integrated into validated lab workflows.

Software & Data Management

The DSX operates via embedded firmware with no external software dependency. All operational parameters—including forward duration, reverse duration, total cycle count, and pause intervals—are configured using front-panel push-button controls with LED status indicators. Timing resolution is ±0.5 s per phase, enabling precise replication of standardized sieving durations (e.g., 3 min per stage per GB/T 5494). Though standalone, the device’s deterministic behavior allows integration into broader LIMS environments via manual data entry or optional RS-232/USB TTL serial interface (available upon request for OEM integration). Audit trails are maintained through operator logbooks referencing batch ID, sieve set serial numbers, and cycle timestamps—consistent with GLP-aligned recordkeeping practices.

Applications

• Grain purity and impurity quantification in procurement and storage facilities
• Kernel damage assessment for milling quality prediction (e.g., head rice yield estimation)
• Seed lot homogeneity evaluation during varietal certification and breeding trials
• Particle size distribution profiling for feed pellet formulation consistency
• Pre-sieving preparation prior to near-infrared (NIR) spectroscopy or moisture content determination
• Compliance verification against national grain grading standards (e.g., China’s GB 1351–2008 for wheat, GB 1353–2018 for maize)

FAQ

Does the DSX include sieves in the standard configuration?
No—sieves are sold separately to allow customization based on target grain type and required mesh gradation. Standard compatibility covers 200–220 mm outer diameter test sieves meeting ISO 3310-1 tolerances.
Can the DSX be used for non-agricultural powders such as pharmaceutical excipients or soil aggregates?
It is not recommended for cohesive, hygroscopic, or electrostatically charged materials without validation. Its mechanical design is optimized for dry, dense, free-flowing grains—not fine chemical powders requiring ultrasonic or air-jet assistance.
Is the DSX compliant with international calibration traceability requirements?
While the unit does not ship with NIST-traceable calibration certificates, its rotational speed and timing functions can be verified using Class II tachometers and digital stopwatches traceable to national metrology institutes—enabling user-performed periodic verification per ISO/IEC 17025 guidelines.
What maintenance is required for long-term reliability?
Routine inspection of eccentric linkage bushings, motor mounting bolts, and electrical connections every 500 operating hours; lubrication of pivot points with food-grade silicone grease biannually.