CZGY FK-B Multi-Purpose Plant Grinder
| Brand | CZGY |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Region of Origin | Domestic (China) |
| Model | FK-B |
| Instrument Type | Laboratory Grinder |
| Sample Applicability | Hard plant materials (roots, stems, leaves, herbs) |
| Output Particle Size | 0.01–0.5 mm (60–300 mesh) |
| Maximum Feed Particle Size | <15 mm |
| Batch Processing Capacity | 100 g |
| Rated Voltage/Frequency | 220 V / 50 Hz |
| Motor Power | 800 W |
| Rotational Speed | 24,000 rpm |
Overview
The CZGY FK-B Multi-Purpose Plant Grinder is a high-speed, benchtop laboratory grinder engineered for consistent, reproducible size reduction of fibrous and moderately hard botanical samples—including dried roots, stems, leaves, and traditional Chinese medicinal herbs. It operates on the principle of high-velocity rotor–stator impact grinding: a precision-balanced stainless-steel blade rotates at 24,000 rpm within a sealed grinding chamber, subjecting feed material to repeated shear, impact, and attrition forces. This mechanical comminution process enables rapid disintegration without significant thermal degradation—critical for preserving thermolabile phytochemicals during sample preparation for HPLC, GC-MS, or elemental analysis. Designed for routine use in QC labs, herbal research facilities, and academic phytochemistry workflows, the FK-B delivers controlled particle size distribution across batches while maintaining structural integrity of the grinding assembly under repeated loading.
Key Features
- Robust 800 W induction motor with thermal overload protection, optimized for intermittent operation (≤2 min active grinding per cycle)
- Stainless-steel grinding cup and blade assembly resistant to corrosion and organic residue buildup
- Sealed lid with safety interlock—motor deactivates automatically if lid is not fully secured
- Compact footprint (220 × 180 × 360 mm) suitable for standard fume hoods or laminar flow workstations
- Adjustable pulse-mode operation: single-press activation allows precise control over grinding duration and energy input
- Low-maintenance design—no belts, gears, or lubrication points; blade replacement requires only standard hex tools
Sample Compatibility & Compliance
The FK-B is validated for dry, low-moisture botanical matrices with Mohs hardness ≤4 (e.g., Angelica sinensis root, Glycyrrhiza uralensis rhizome, Ginkgo biloba leaf). It is not intended for wet, oily, or highly elastic samples (e.g., fresh fruits, resins, or polymers). While not certified to ISO/IEC 17025 or GLP as a standalone analytical instrument, its mechanical consistency supports compliance with pharmacopoeial sample preparation protocols (e.g., Chinese Pharmacopoeia ChP 2020 Appendix XIB, USP Powder Fineness). All electrical components conform to GB 4706.1–2005 (equivalent to IEC 60335-1) for household and similar electrical appliances. CE marking is not applicable, as the unit is manufactured for domestic regulatory frameworks and export markets requiring self-declaration of conformity.
Software & Data Management
The FK-B is a manually operated, non-programmable device with no embedded firmware, touchscreen interface, or digital connectivity. Operation relies solely on physical push-button actuation and user-defined timing discipline (recommended: ≤2 min grinding + ≥20 s cooling intervals). As such, it generates no electronic records, audit trails, or metadata—making it inherently compatible with environments where data integrity requirements (e.g., FDA 21 CFR Part 11) do not apply to sample prep instrumentation. For laboratories implementing full traceability, manual logbook entries—including batch ID, operator initials, start/stop timestamps, and post-grind sieve analysis results—are recommended practice.
Applications
- Pre-analytical homogenization of herbal powders prior to extraction or dissolution testing
- Routine particle size reduction for uniformity-of-dose studies in TCM formulation development
- Preparation of reference materials for botanical authentication via DNA barcoding or metabolite profiling
- Generation of standardized test portions for heavy metal screening (e.g., ICP-MS digestion prep)
- Supporting ASTM D5198 (standard practice for sampling and preparing tobacco and related products) analog workflows in plant-based product R&D
- Teaching laboratories demonstrating mechanical comminution principles in food science and pharmacognosy curricula
FAQ
What is the maximum continuous operating time per grinding cycle?
Do not exceed 120 seconds of active grinding per cycle. Allow ≥20 seconds of passive cooling between cycles to prevent motor overheating and maintain blade edge integrity.
Can the FK-B process frozen or cryogenically embrittled samples?
Yes—pre-freezing fibrous herbs (e.g., at –20 °C for 15 min) improves brittleness and yields finer, more uniform output. Ensure samples are surface-dry before loading to avoid condensation-induced clumping.
Is calibration required or supported?
No calibration is defined or required for this mechanical grinder. Performance verification is conducted empirically via sieve analysis (e.g., ASTM E11) of output fractions against target mesh ranges (60–300 mesh).
How often should the grinding blade be replaced?
Under typical usage (≤5 batches/day), inspect the blade every 200 operational hours. Replace if chipping, excessive wear, or diminished fineness (<0.01 mm lower limit) is observed during routine sieve checks.
Does the unit support GMP documentation packages?
The FK-B does not generate electronic records or support IQ/OQ protocols. However, its mechanical simplicity facilitates straightforward equipment qualification using vendor-supplied specifications, visual inspection checklists, and performance testing reports.
