MKN JJ-2(A-88) High-Speed Tissue Homogenizer
| Key | Brand: MKN |
|---|---|
| Model | JJ-2(A-88) |
| Output Power | 200 W |
| Rated Voltage | 220 V AC |
| Rated Frequency | 50 Hz |
| Operating Speed | 10,000–12,000 rpm |
| Weight | 7.5 kg |
| Dimensions (L×W×H) | 48 × 24 × 24 cm |
Overview
The MKN JJ-2(A-88) High-Speed Tissue Homogenizer is a robust, benchtop mechanical homogenization system engineered for rapid and reproducible disruption of soft to moderately tough biological tissues, plant materials, cultured cells, and food matrices. It operates on the principle of high-shear rotor-stator homogenization: a precision-machined stainless-steel blade assembly rotates at controlled high speeds within a fixed cylindrical chamber, generating intense hydrodynamic shear forces, cavitation, and turbulent mixing that efficiently lyse cellular structures and reduce sample particle size. Designed for routine laboratory use in research, quality control, and preparative workflows, the unit delivers consistent homogenization performance without requiring cryogenic cooling or consumable probes—making it particularly suitable for batch processing of multiple samples where speed, simplicity, and cost-efficiency are prioritized.
Key Features
- 200 W brush-type AC motor with stable torque delivery across the full operational speed range (10,000–12,000 rpm), ensuring reliable homogenization of heterogeneous or fibrous samples.
- Stainless-steel homogenizing chamber (included) constructed from corrosion-resistant 304-grade stainless steel, facilitating easy cleaning, autoclavability, and compatibility with aqueous and mild organic solvents.
- Direct-drive mechanical coupling via rigid shaft and precision-machined coupler—eliminates belt slippage and ensures synchronous rotation between motor shaft and blade assembly for minimal energy loss and vibration.
- Fixed-speed operation with integrated thermal protection circuitry to prevent motor overload during extended or high-viscosity runs.
- Compact footprint (48 × 24 × 24 cm) and lightweight design (7.5 kg) enable flexible placement on standard lab benches or inside biosafety cabinets with minimal spatial impact.
- Ergonomic base housing with non-slip rubber feet and recessed power switch for safe, one-handed operation and stability during high-RPM cycles.
Sample Compatibility & Compliance
The JJ-2(A-88) is validated for homogenization of soft animal tissues (e.g., liver, kidney, brain), plant leaves and roots, microbial pellets, soft cheeses, fruit pulps, and nutritional supplements. It supports sample volumes ranging from 5 mL to 250 mL per cycle, depending on chamber geometry and viscosity. While not certified for ISO 17025 or GLP-compliant audit trails, the device conforms to general electrical safety standards applicable to Class I laboratory equipment (IEC 61010-1:2010). Its all-metal construction and absence of plastic wetted parts minimize leaching risks in sensitive biochemical assays. Users performing regulated work (e.g., FDA-regulated food testing or pharmacopeial methods) should validate homogenization efficiency and reproducibility per internal SOPs and reference standards such as USP or AOAC Official Methods.
Software & Data Management
The JJ-2(A-88) is a manually operated, analog-controlled instrument with no embedded firmware, touchscreen interface, or digital connectivity. All operational parameters—including run time, speed selection (fixed), and sample volume—are set and monitored manually by the user. No data logging, export, or remote control capabilities are provided. This architecture aligns with laboratories operating under simplified quality systems where traceability is maintained through handwritten logbooks or LIMS-integrated manual entry. For environments requiring electronic records compliant with 21 CFR Part 11, external timing devices and procedural documentation must be employed to satisfy audit requirements.
Applications
- Preparation of tissue lysates for protein extraction, enzyme activity assays, and Western blotting.
- Homogenization of plant material for metabolite profiling, DNA/RNA isolation, and pesticide residue analysis.
- Dispersion of food matrices (e.g., infant formula, dietary supplements, dairy products) prior to nutrient quantification or microbiological testing.
- Routine sample pretreatment in environmental labs for soil suspension preparation or sludge homogenization.
- Supporting ASTM D5231 (determination of total solids in wastewater) and ISO 5528 (cereal and cereal products — determination of moisture content) sample conditioning protocols.
FAQ
Is the JJ-2(A-88) suitable for hard or fibrous tissues such as cartilage or muscle?
It is optimized for soft-to-moderate tissues; prolonged use on highly fibrous or calcified samples may accelerate blade wear and reduce homogenization efficiency. Pre-chopping or freezing is recommended for such materials.
Can the stainless-steel chamber be sterilized in an autoclave?
Yes—the chamber is fully autoclavable at 121 °C, 15 psi for 20 minutes. Ensure complete drying before reuse to prevent condensation-related corrosion.
Does the unit include interchangeable blades or multiple chamber sizes?
No. The JJ-2(A-88) ships with a single standard stainless-steel blade assembly and one fixed-volume chamber. Custom chamber adaptation is not supported.
What maintenance is required to ensure long-term reliability?
Routine cleaning after each use, periodic inspection of blade sharpness and shaft alignment, and annual lubrication of the motor bearings per manufacturer guidelines are recommended.
Is this device compatible with hazardous or volatile solvents?
Use only with non-flammable, low-volatility solvents. Operation in flammable vapor environments is prohibited due to lack of explosion-proof certification.
