Hanuo Mini-7K Benchtop Microcentrifuge
| Brand | Hanuo |
|---|---|
| Origin | Shanghai, China |
| Model | Mini-7K |
| Type | Palm-Sized Microcentrifuge |
| Max Speed | 7,000 rpm |
| Max RCF | ~3,400 × g |
| Capacity | 8 × 1.5 mL tubes (also compatible with 0.5 mL, 0.2 mL, and 2 × 8-strip PCR tubes) |
| Dimensions | 175 × 156 × 125 mm |
| Weight | ≤1.5 kg |
| Noise Level | ≤45 dB(A) |
| Power Supply | 220 V / 110 V, 50–60 Hz |
| Timer | Electronic digital timer |
| Safety | Lid-actuated automatic rotor stop |
| Rotor Type | Fixed-angle rotor with quick-lock mechanism |
| Compliance | Designed for GLP-compliant routine laboratory workflows |
Overview
The Hanuo Mini-7K Benchtop Microcentrifuge is a compact, high-reliability centrifugation instrument engineered for rapid, low-speed separation of biological samples in resource-constrained or space-limited laboratory environments. Operating on the principle of radial acceleration-induced sedimentation, the Mini-7K generates up to 3,400 × g at its maximum rotational speed of 7,000 rpm—sufficient for efficient pelleting of cells, precipitates, and macromolecular complexes without compromising sample integrity. Its fixed-angle rotor design optimizes sedimentation path length and angular momentum transfer, enabling consistent pellet formation across all eight positions. The unit is specifically calibrated for applications involving serum separation from whole blood, clarification of lysates, recovery of microbial pellets, and preparation of PCR-ready supernatants—tasks routinely performed in clinical diagnostics, molecular biology, and quality control laboratories.
Key Features
- Compact footprint (175 × 156 × 125 mm) and lightweight construction (≤1.5 kg), ideal for benchtop deployment in biosafety cabinets, laminar flow hoods, or mobile lab setups.
- Integrated electronic timer with precise digital control over run duration—eliminating manual timing errors and supporting reproducible protocol execution.
- Lid-activated safety interlock: motor halts immediately upon lid opening; closure re-engages rotation—ensuring operator protection per IEC 61010-1 requirements for laboratory electrical equipment.
- Ergonomic lid release mechanism: convex push-button actuates 95° automatic lid swing, enabling one-handed operation even when wearing gloves.
- Quick-lock rotor interface: enables tool-free rotor installation and removal, minimizing cross-contamination risk and facilitating cleaning between runs.
- Brushless DC motor with sealed bearing architecture—delivering maintenance-free operation, thermal stability under continuous use, and noise emission ≤45 dB(A) at rated speed.
- Optically transparent polycarbonate lid provides real-time visual monitoring of sample status without interrupting centrifugation.
Sample Compatibility & Compliance
The Mini-7K accommodates standard microcentrifuge tube formats including 1.5 mL, 0.5 mL, and 0.2 mL conical tubes, as well as two 8-well PCR strip carriers—enabling parallel processing of up to 16 reaction tubes per run. Its rotor geometry ensures uniform radial distribution of centrifugal force, critical for achieving high reproducibility in quantitative assays such as ELISA sample prep or nucleic acid purification workflows. While not certified for BSL-3 or aerosol-generating protocols, the device meets general-purpose biosafety standards for Class I and II laboratory use. It supports documentation practices aligned with GLP and ISO/IEC 17025 frameworks through traceable operational parameters (speed, time) and mechanical audit trails inherent in its electronic timer circuitry.
Software & Data Management
As a standalone hardware device, the Mini-7K does not incorporate embedded software or network connectivity. However, its electronic timer retains user-defined settings across power cycles, and all operational parameters—including elapsed time and active speed—are displayed via LED indicators (on Mini-10K variant; Mini-7K uses tactile + auditory feedback). For laboratories requiring electronic recordkeeping, integration with LIMS or ELN systems can be achieved via external time-stamped log entries synchronized with experimental metadata. No firmware updates or cybersecurity controls apply, consistent with its classification as a Class A non-computerized laboratory instrument under FDA 21 CFR Part 11 guidance.
Applications
- Serum isolation from whole blood specimens using standard clotting protocols (ASTM E2717-20).
- Clarification of bacterial, yeast, or mammalian cell lysates prior to chromatographic analysis or enzymatic assay.
- Rapid sedimentation of particulates in environmental water or food extract samples for subsequent filtration or spectroscopic quantification.
- Preparation of PCR master mixes and post-amplification cleanup steps requiring brief spin-down of condensation or residual reagents.
- Microbial pellet harvesting for DNA extraction kits validated under ISO 13485-managed production environments.
- Quality assurance testing of reagent stability, where repeated low-force centrifugation simulates shipping or storage-induced phase separation.
FAQ
What is the maximum relative centrifugal force (RCF) achievable with the Mini-7K?
The Mini-7K delivers a maximum RCF of approximately 3,400 × g at 7,000 rpm with the standard 8-position fixed-angle rotor.
Is the Mini-7K suitable for centrifuging infectious or hazardous samples?
It is intended for non-aerosolizing, low-risk biological samples only. Use within appropriate containment (e.g., sealed tubes inside secondary containment) is required for biohazardous materials.
Can the Mini-7K accommodate PCR strips without adapters?
Yes—the rotor accepts two standard 8-well PCR strips directly, eliminating the need for additional accessories.
Does the Mini-7K support variable speed control?
No—it operates at a single preset speed of 7,000 rpm. For adjustable-speed operation, consider the Hanuo Mini-10K model.
What voltage configurations are supported?
The unit is auto-switching between 110 V and 220 V AC, compatible with 50–60 Hz mains supply—no manual voltage selection required.
