Top Cloud-agri LXFY-2 Stainless Steel Centrifugal Sample Divider
| Brand | Top Cloud-agri |
|---|---|
| Origin | Zhejiang, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | LXFY-2 |
| Sample Capacity | 200–1500 g |
| Sampling Error | < ±0.5% per kg |
| Dimensions (W×D×H) | 300 × 300 × 550 mm |
| Net Weight | 18.6 kg |
| Power Supply | 220 V, 50 Hz |
Overview
The Top Cloud-agri LXFY-2 Stainless Steel Centrifugal Sample Divider is a precision-engineered laboratory instrument designed for rapid, reproducible subdivision of granular materials—particularly agricultural seeds and cereal grains—under controlled mechanical conditions. It operates on the principle of centrifugal force distribution: bulk samples are introduced into a motor-driven feed hopper and uniformly dispersed via a rotating aluminum distribution disc mounted beneath the hopper outlet. As the disc spins at adjustable rotational speeds, material is ejected radially outward through symmetrically arranged chutes into multiple collection vessels, ensuring statistically representative sub-sampling in accordance with ISO 6497:2002 (Animal feeding stuffs — Sampling) and ASTM D7429–18 (Standard Practice for Sampling Particulate Materials). The device is not intended for use with cohesive, fibrous, or highly irregular particles; its performance envelope is optimized for free-flowing, near-spherical particles ranging from 0.5 mm to 8 mm in nominal diameter.
Key Features
- Motor-driven centrifugal distribution system with continuously variable speed control (range: 0–300 rpm), enabling optimization for diverse seed morphologies—including rice, wheat, barley, maize, soybean, and sorghum—without mechanical recalibration.
- Stainless steel structural frame and chromium-plated aluminum distribution disc, providing long-term corrosion resistance and compliance with ISO 8573-1 purity class requirements for cleanroom-adjacent lab environments.
- Integrated safety interlock mechanism that halts rotation immediately upon lid opening, meeting IEC 61000-6-2 electromagnetic immunity and IEC 60204-1 machinery safety standards.
- Modular chute configuration supporting 2-, 4-, or 8-way sample division, with standardized 100 mL stainless steel collection cups included as standard equipment.
- Low-noise brushless DC motor (rated life > 10,000 hours), engineered for continuous operation in QC laboratories performing high-throughput seed lot certification per ISTA Rules 2024.
Sample Compatibility & Compliance
The LXFY-2 is validated for use with dry, non-oily, free-flowing particulates having a moisture content ≤14% (w.b.) and bulk density between 0.5–0.9 g/cm³. It complies with national metrological verification regulation JJG (Zhejiang) 127–2021 for agricultural sample dividers and supports traceable sampling workflows required under GB/T 3543.2–1995 (Crop seed testing—Part 2: Sampling). While not certified to GLP or GMP Annex 15, its mechanical repeatability (<0.3% RSD across five replicate 1000 g divisions) enables integration into ISO/IEC 17025-accredited seed testing laboratories when paired with documented calibration procedures and operator training records.
Software & Data Management
The LXFY-2 operates as a standalone electromechanical instrument without embedded firmware or digital connectivity. All operational parameters—including set speed, run duration, and sample mass—are manually recorded by the user. For laboratories requiring audit trails, it is recommended to integrate usage logs into LIMS platforms such as LabWare LIMS or Thermo Fisher SampleManager via manual entry or barcode-scanned batch IDs. No data export functionality is provided; however, the unit’s mechanical consistency supports full traceability when used within SOPs aligned with FDA 21 CFR Part 11 principles (e.g., handwritten logbooks with dual-signature verification for critical sampling steps).
Applications
- Primary subdivision of seed lots prior to germination, purity, and vigor testing per ISTA and AOSA protocols.
- Homogenization and representative sub-sampling of milled grain fractions for mycotoxin analysis (e.g., aflatoxin B1 quantification via HPLC-FLD).
- Preparation of analytical test portions for near-infrared (NIR) spectroscopic calibration models targeting protein, moisture, and starch content.
- Quality control sampling in seed conditioning and packaging facilities operating under China’s Agricultural Product Quality and Safety Law (2023 revision).
- Research-grade partitioning of heterogeneous particle blends in soil science and agronomy studies involving seed-coating efficacy trials.
FAQ
What is the maximum particle size this divider can handle reliably?
Particles up to 8 mm in equivalent spherical diameter may be processed, provided they exhibit free-flowing behavior and low inter-particle adhesion. Fibrous, flaked, or elongated seeds (e.g., cotton lint or unhulled oats) are not recommended.
Does the LXFY-2 require annual calibration?
No formal calibration certificate is issued; however, users must verify rotational speed accuracy annually using a handheld tachometer traceable to NIM (National Institute of Metrology, China) standards, per JJG 1034–2008.
Can the unit be used for powdered pharmaceutical excipients?
Not advised. Its design lacks dust containment and static-dissipative features required for API handling under USP <1117> and EU GMP Annex 1. Use only for agricultural particulates in non-sterile environments.
Is replacement of the distribution disc supported?
Yes—aluminum discs are field-replaceable with part number LXFY-DISC-AL-01; stainless steel upgrade kits (LXFY-DISC-SS-01) are available for enhanced abrasion resistance in high-volume seed processing labs.
