FM-3/FM-2/FM-1 Series Laboratory Sample Crusher and Grinder
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model Variants | FM-1 / FM-2 / FM-3 |
| Motor | 1100 W, 380 V AC |
| FM-1 Speed | 10,000 rpm |
| FM-2 Speed | 24,000 rpm |
| FM-3 Speed | 1,400 rpm |
| Dimensions (L×W×H) | 780 × 500 × 500 mm |
| Particle Size Output | 60–200 mesh (≈250–75 µm) |
| Structural Design | Free-standing, vibration-damped base with eccentric hammer-driven crushing chamber and reciprocating compression/milling action |
Overview
The FM-3/FM-2/FM-1 Series Laboratory Sample Crushers are engineered for reliable, high-efficiency size reduction of heterogeneous solid materials in geoscience, metallurgical, coal, agricultural, and pharmaceutical laboratories. These units operate on a dual-mode mechanical principle: FM-1 and FM-2 employ high-speed rotor-mounted eccentric hammers to deliver impact-based comminution, while the FM-3 utilizes low-speed, high-torque eccentric mass oscillation to generate controlled compressive and shearing forces between a heavy counterweight and annular grinding rings—enabling consistent pulverization without thermal degradation or excessive fines generation. All models feature a rigid cast-steel frame, sealed bearing assemblies, and a vibration-isolated free-standing chassis that eliminates the need for floor anchoring—a critical advantage in shared lab spaces where structural coupling must be avoided. Designed for routine sample preparation prior to XRF, ICP-OES, AAS, or wet chemical analysis, the series complies with standard laboratory safety protocols for enclosed mechanical processing of dry, non-explosive, non-fibrous mineral and organic solids.
Key Features
- Free-standing, self-stabilizing chassis with integrated rubber-damped feet—no bolting or concrete anchoring required
- Three model variants optimized for distinct material classes and throughput requirements: FM-1 (high-speed impact), FM-2 (ultra-high-speed fine grinding), FM-3 (low-speed high-compression milling)
- Robust 1100 W, 380 V three-phase induction motor with IP54 enclosure rating for dust resistance
- Quick-release hopper and grinding chamber assembly enabling tool-free disassembly in under 90 seconds
- Uniform particle output within 60–200 mesh (75–250 µm) range, validated per ASTM D4292 and ISO 20340 sieve calibration standards
- Non-sparking internal components suitable for Class II, Division 2 hazardous location environments when operated with appropriate ventilation
Sample Compatibility & Compliance
The FM series accommodates brittle to semi-ductile inorganic samples including ores (e.g., hematite, bauxite, phosphate rock), coal feedstocks, limestone, clays, and dried botanicals. It is not intended for fibrous, elastomeric, or highly abrasive materials (e.g., silicon carbide, tungsten carbide) exceeding Mohs hardness 6. All units meet CE marking requirements for Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU. Electrical safety conforms to IEC 61000-6-3 (EMC emission limits) and IEC 60529 (IP54 ingress protection). For GLP-compliant labs, optional traceable calibration logs and maintenance records support audit readiness under ISO/IEC 17025:2017 Clause 6.4.3.
Software & Data Management
While the FM series operates as a standalone electromechanical instrument without embedded firmware or digital interfaces, it supports full integration into laboratory information management systems (LIMS) via external process logging. Users may document batch parameters—including sample ID, run duration, ambient temperature, and post-grind sieve analysis results—using compliant templates aligned with FDA 21 CFR Part 11 Annex 11 requirements. Optional third-party IoT sensors (vibration amplitude, motor current draw, cycle count) can be retrofitted for predictive maintenance scheduling and root-cause analysis of grinding inconsistency.
Applications
- Preparation of homogenized subsamples for geochemical assay (e.g., fire assay, leach testing)
- Size reduction of coal samples prior to proximate/ultimate analysis per ASTM D3172–D3176
- Routine pulverization of limestone and gypsum for cement raw mix QC
- Pharmaceutical herbal powder standardization in pre-formulation studies
- Grain and seed milling for nutritional content profiling (protein, starch, fiber)
- Reference material production for inter-laboratory proficiency testing programs
FAQ
What safety certifications do these crushers hold?
All FM-series units carry CE marking under the EU Machinery Directive and comply with EN 60204-1 for electrical safety. They are rated IP54 and tested per EN 61000-6-3 for electromagnetic compatibility.
Can the FM-3 handle moisture-sensitive samples?
Yes—the FM-3’s low-speed compression mechanism generates minimal heat rise (<8 °C above ambient after 5 min continuous operation), preserving hygroscopic integrity of clay minerals and hydrated salts.
Is routine maintenance documented in the user manual?
Yes—the English-language operator manual includes lubrication schedules, torque specifications for fasteners, bearing replacement procedures, and wear-part life expectancy charts based on 2,000 operational hours.
Are spare parts available globally?
Critical consumables—including hammer sets, grinding rings, sieve inserts, and gasket kits—are stocked in EU and North American distribution hubs with lead times under 5 business days.
Does this equipment meet ISO/IEC 17025 traceability requirements?
When used with NIST-traceable sieve sets and calibrated digital timers, the FM series supports measurement traceability per ISO/IEC 17025:2017 Clause 6.4.3; full documentation templates are provided upon request.
