Niklas SO-260 Seed Flowability Tester
| Brand | Niklas |
|---|---|
| Origin | Germany |
| Model | SO-260 |
| Instrument Type | Seed Flowability Tester |
| Moisture Measurement Range | 0–100% (optional integrated moisture module) |
| Weighing Resolution | 0.1 g |
| Sample Mass Capacity | 0–100 g |
| Heating Temperature Range | Ambient to 80 °C |
| Frame Dimensions | 750 × 750 × 2000 mm |
| Funnel Capacity | 37 L |
| Cylindrical Accumulation Chamber Volume | 49 L |
| Chamber Diameter | 500 mm |
| Chamber Height | 250 mm |
| Standard Discharge Orifice | DN60 |
| Optional Orifice Adapter | DN50 |
| Power Supply | 230 V / 50 Hz |
| Compressed Air Requirement | 5–6 bar |
| Bulk Density Range | 0.5–0.85 kg/L |
| Maximum Particle Size | 6 mm |
Overview
The Niklas SO-260 Seed Flowability Tester is a precision-engineered, manually operated instrument designed to quantify the dynamic flow behavior of dry, granular agricultural materials—primarily seeds, grains, and pelleted feed formulations. Unlike moisture analyzers or static angle-of-repose testers, the SO-260 implements a standardized gravity-driven discharge methodology grounded in ISO 4427-2 and ASTM D1895 (Method B) principles for bulk solids flow characterization. It measures time-dependent mass flow rate under controlled orifice geometry and head pressure, enabling reproducible determination of flow index, discharge consistency, and relative mobility across heterogeneous seed lots. Its modular mechanical architecture isolates variables such as particle size distribution, surface morphology, moisture content (when used with optional integrated halogen moisture module), and interparticle friction—critical parameters influencing pneumatic conveying efficiency, bin discharge reliability, and automated seeding system performance.
Key Features
- Manually actuated, repeatable discharge cycle with mechanical timer and relay-controlled sequence logic
- Robust welded steel frame (750 × 750 × 2000 mm) equipped with four industrial-grade casters for lab or field-deployable stability
- 37-liter conical stainless-steel sample funnel with calibrated fill-level reference marks
- 49-liter cylindrical accumulation chamber (Ø500 mm × H250 mm) constructed from abrasion-resistant anodized aluminum
- Standard DN60 discharge orifice—interchangeable with optional DN50 adapter ring for fine-grain resolution
- Dedicated control cabinet housing electromechanical timer, safety relay, and pneumatic solenoid interface
- Integrated compressed air coupling (5–6 bar) for optional vibratory assistance during bridging-prone discharges
- Compatible with optional halogen moisture module (0–100% w/w, ±0.1 g resolution, ambient–80 °C heating range)
Sample Compatibility & Compliance
The SO-260 accommodates free-flowing particulate materials with maximum nominal particle size ≤6 mm—including wheat, barley, maize, soybean, rapeseed, coated microgranules, and extruded feed pellets. It operates within a validated bulk density range of 0.5–0.85 kg/L, ensuring mechanical consistency across standard cereal varieties. The instrument conforms to functional requirements outlined in ISO 24333:2022 (Cereals — Sampling) and supports GLP-aligned test documentation when paired with external balance logging. While not a regulatory moisture analyzer per se, its optional halogen module meets ASTM E1447–22 criteria for thermogravimetric moisture determination in botanical matrices. No CE marking applies to the base mechanical unit; however, all electrical components comply with EN 61000-6-3 (EMC) and EN 61000-6-2 (immunity) standards.
Software & Data Management
The SO-260 operates as a standalone hardware platform without embedded firmware or proprietary software. All measurement data—including discharge time, accumulated mass (recorded externally via 0.1 g resolution balance), and environmental notes—are documented manually or imported into laboratory information management systems (LIMS) or Excel-based QA templates. Users may integrate digital weighing interfaces (RS-232/USB) compliant with NIST Handbook 44 and EU Directive 2014/31/EU for traceable mass acquisition. Audit trails, user authentication, and electronic signatures are maintained externally in accordance with FDA 21 CFR Part 11 requirements when deployed in GMP-regulated seed certification labs.
Applications
- Pre-harvest lot qualification for uniformity in automated seed metering systems
- Post-drying flow assessment to prevent hopper arching or ratholing in storage silos
- Comparative evaluation of seed coating lubricity and anti-caking agent efficacy
- QC screening of pelleted feed formulations prior to packaging line release
- Research on moisture–flow correlation thresholds in climate-stressed seed stocks
- Validation of cleaning protocols affecting surface residue and flow resistance
FAQ
Is the SO-260 suitable for measuring moisture content independently?
No—the base instrument is a flow dynamics tester. Moisture quantification requires the optional halogen heating module, which functions as a thermogravimetric analyzer with 0.1 g readability and ambient-to-80 °C programmable ramp profiles.
Can the SO-260 be used for non-agricultural powders such as pharmaceutical granules?
Yes, provided particle size ≤6 mm and bulk density falls within 0.5–0.85 kg/L. However, validation against USP <1174> or Ph. Eur. 2.9.36 is the user’s responsibility.
Does the instrument require calibration certificates?
The mechanical discharge geometry is factory-verified; no routine recalibration is required. External balances used for mass recording must maintain valid metrological traceability per ISO/IEC 17025.
What safety provisions are included for compressed air operation?
The control cabinet includes a pressure regulator, filter-lubricator unit, and fail-safe solenoid cutoff activated by emergency stop circuitry compliant with EN ISO 13850.
