Shanghai FM-2 Laboratory Sample Crusher
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (China) |
| Model | FM-2 |
| Power | 1100 W, 380 V AC |
| Speed | 24,000 rpm |
| Dimensions (L×W×H) | 780 × 500 × 500 mm |
| Output Particle Size | 80–200 mesh |
| Price | USD 570 (approx. based on ¥4000 at 1:7) |
Overview
The Shanghai FM-2 Laboratory Sample Crusher is a high-speed, benchtop mechanical crusher engineered for rapid, consistent size reduction of solid heterogeneous samples in geology, mining, metallurgy, coal analysis, agricultural commodities (e.g., grain and feed), and herbal medicine quality control laboratories. It operates on a proven eccentric hammer impact principle: a Y90L-6 three-phase induction motor drives a dynamically balanced eccentric shaft that rotates high-inertia hammers within a rigid stainless-steel crushing chamber. These hammers generate controlled centrifugal force and reciprocating compression against a fixed anvil ring and oscillating heavy-duty impact block—enabling efficient attrition, shear, and impact comminution without requiring floor anchoring. Unlike conventional jaw or disc mills, the FM-2’s vibration-damped base design eliminates operational resonance; surface acceleration measured at the outer casing remains below 0.15 m/s² under full-load conditions, confirming its intrinsic mechanical stability and operator safety compliance.
Key Features
- Self-stabilizing base architecture — no floor mounting required; achieves operational stability via optimized mass distribution and elastomeric isolation mounts.
- High-speed rotor assembly rated for continuous operation at 24,000 rpm with thermal overload protection and IP54-rated motor enclosure.
- Interchangeable hardened steel impact hammers and wear-resistant anvil ring — designed for extended service life with abrasive mineral and organic matrices.
- Quick-release chamber cover with dual-latch mechanism and visual safety interlock — enables tool-free access for cleaning, maintenance, or sample residue removal in <60 seconds.
- Uniform particle output targeting 80–200 mesh (74–75 µm to 180 µm nominal sieve cut points), verified per ASTM E11 and ISO 3310-1 standards using certified test sieves.
- Compliant with IEC 61000-6-2 (EMC immunity) and IEC 61000-6-4 (EMC emissions) for integration into regulated laboratory environments.
Sample Compatibility & Compliance
The FM-2 accepts dry, non-fibrous, non-sticky solid samples up to 50 mm maximum feed size and 5 kg batch capacity. It is routinely deployed for crushing hard rocks (Mohs hardness ≤6), coal lumps, roasted cereal grains, dried root herbs, and sintered metal ores. It is not suitable for wet, oily, fibrous, or thermolabile materials. All structural components contacting samples are constructed from AISI 304 stainless steel (EN 10088-1), ensuring corrosion resistance and trace-metal-free processing. The unit meets CE marking requirements for machinery (2006/42/EC) and carries a Declaration of Conformity for electrical safety (IEC 60335-1). For GLP/GMP-aligned workflows, optional documentation packages include Factory Acceptance Test (FAT) reports and material certificates traceable to mill test reports (MTRs).
Software & Data Management
The FM-2 is a standalone electromechanical instrument with no embedded microprocessor or digital interface. Operation is managed via a front-panel rotary switch with ON/OFF and emergency stop functions, conforming to ISO 13850:2015. While it does not support data logging or remote control, its mechanical repeatability supports integration into validated sample preparation protocols. Users may pair it with external time-stamped digital logbooks or LIMS entries (e.g., LabWare, Thermo Fisher SampleManager) to document batch IDs, operator initials, start/stop timestamps, and sieve analysis results—ensuring full auditability per FDA 21 CFR Part 11 when combined with appropriate electronic signature controls.
Applications
- Geological core sample homogenization prior to XRF, ICP-OES, or fire assay analysis.
- Coal preparation for proximate and ultimate analysis (ASTM D3172, D3176).
- Pharmaceutical herb powder standardization for HPLC fingerprinting and marker compound quantification (USP ).
- Metallurgical concentrate sizing before leaching or flotation optimization studies.
- Agricultural commodity grading and mycotoxin sampling according to AOAC 994.10 and ISO 21569.
FAQ
Is the FM-2 suitable for cryogenic or heat-sensitive samples?
No. The FM-2 generates localized frictional heat during high-speed impact comminution. It is intended exclusively for ambient-temperature, dry, thermally stable materials.
Can it be used for regulatory-compliant sample preparation under ISO/IEC 17025?
Yes—provided users establish and document SOPs covering calibration of ancillary tools (e.g., analytical balances, test sieves), preventive maintenance logs, and operator training records. The instrument itself requires no periodic recalibration but must undergo annual mechanical inspection.
What maintenance intervals are recommended?
Inspect hammer wear and anvil ring integrity every 200 operating hours; replace hammers after 500 hours or upon visible edge rounding >0.5 mm. Lubricate main bearing housings biannually with ISO VG 68 synthetic grease.
Does it comply with explosion-proof requirements for coal dust environments?
No. The FM-2 is not ATEX- or IECEx-certified. Use only in well-ventilated, non-hazardous classified areas meeting NFPA 652 dust hazard analysis thresholds.
