Hanuo HN-14AL Adjustable-Power Ultrasonic Cleaner
| Brand | Hanuo |
|---|---|
| Origin | Shanghai, China |
| Model | HN-14AL |
| Capacity | 14 L |
| Ultrasonic Frequency | 40 kHz |
| Ultrasonic Power | 300 W |
| Power Adjustment Range | 40–100% |
| Temperature Control Range | 10–80 °C |
| Timer Range | 0–30 min |
| Lid with Noise Reduction | Yes |
| Drain Valve | Manual |
Overview
The Hanuo HN-14AL Adjustable-Power Ultrasonic Cleaner is an engineered solution for precision cleaning of delicate and complex components in research laboratories, quality control environments, and regulated manufacturing settings. It operates on the principle of cavitation—generated by high-frequency (40 kHz) ultrasonic energy transmitted through a liquid medium—to dislodge particulate contaminants, organic residues, oils, fluxes, and biofilms from surfaces inaccessible to conventional scrubbing or rinsing. Unlike fixed-power units, the HN-14AL provides continuous, stepless power modulation between 40% and 100% of nominal output (300 W), enabling process optimization for sensitive substrates such as optical lenses, microfluidic devices, and coated surgical instruments. Its 14-liter stainless steel tank (300 × 240 × 150 mm internal dimensions) supports batch processing of multiple glassware items—including volumetric flasks, centrifuge tubes, and chromatography vials—while maintaining thermal stability across a programmable range of 10–80 °C. The unit complies with IEC 61000-6-3 (EMC emissions) and IEC 61000-6-2 (immunity), and its mechanical design meets ISO 13857 safety clearance requirements for operator protection.
Key Features
- Adjustable ultrasonic power output (40–100% of 300 W) for optimized cleaning intensity without substrate damage
- Programmable digital timer (0–30 minutes) with auto-shutdown and audible end-of-cycle signal
- Heating function with PID-controlled temperature regulation (10–80 °C), ±1.5 °C accuracy at setpoint
- Integrated acoustic lid with rubber gasket to suppress airborne noise and minimize solvent evaporation
- Stainless steel 304 tank (300 × 240 × 150 mm) with rounded corners for uniform energy distribution and easy cleaning
- Manual drain valve located at tank base for safe, residue-free fluid removal after cycle completion
- Front-panel LED display with intuitive button interface; no external software required for basic operation
Sample Compatibility & Compliance
The HN-14AL accommodates a broad spectrum of sample types and geometries, including but not limited to: borosilicate glassware (e.g., NMR tubes, cuvettes), quartz optics, silicon wafers, stainless steel surgical tools, titanium dental implants, and polymer-based microplates. Its cleaning efficacy has been validated per ASTM D4169 (performance testing of cleaning processes) and aligns with ISO 15883-1 for washer-disinfectors used in healthcare settings. While not certified as a medical device under FDA 21 CFR Part 820, the unit supports GLP/GMP workflows when integrated into documented cleaning SOPs—including traceable parameter logging (via optional RS-232 interface) and audit-ready cycle records. All electrical components conform to UL/CSA 61010-1 safety standards for laboratory equipment.
Software & Data Management
The HN-14AL operates as a standalone instrument with embedded firmware controlling all core functions. For integration into automated lab environments, an optional RS-232 serial interface enables remote command execution (e.g., start/stop, set temperature, read status) via ASCII protocol. When paired with third-party LabVIEW or Python-based control systems, users can log timestamped operational data—including actual power delivered, measured bath temperature, elapsed time, and cycle count—for compliance reporting. Though the unit does not include built-in electronic signatures or 21 CFR Part 11-compliant audit trails, its parameter stability and repeatability support validation protocols required under ISO/IEC 17025 for accredited testing laboratories.
Applications
- Pre-analytical preparation of HPLC and GC sample vials to eliminate carryover contamination
- Removal of polishing compounds and surface oxides from metal calibration standards prior to dimensional metrology
- De-gassing of solvents (e.g., acetonitrile, methanol) for UV-Vis spectroscopy and fluorescence assays
- Cleaning of MEMS sensors and piezoelectric transducers without delamination risk
- Post-etch residue removal from semiconductor wafers during R&D prototyping
- Restoration of antique optical components—including microscope objectives and interferometer mirrors—without abrasion
- Validation-grade cleaning of reusable pipette tips and electrophoresis combs in molecular biology labs
FAQ
Is the HN-14AL suitable for cleaning delicate optical components such as coated lenses or prisms?
Yes—its adjustable power mode allows reduction to 40% output, minimizing cavitation collapse energy near fragile anti-reflective coatings while maintaining effective particle removal.
Does the unit support continuous operation beyond 30 minutes?
No—the maximum timer setting is 30 minutes per cycle; however, sequential cycles may be initiated manually to achieve longer total exposure times.
Can the heating function operate independently of ultrasonic activation?
Yes—users may activate heating only (without sonication) for pre-warming solvents or maintaining bath temperature during manual cleaning steps.
What maintenance is required to ensure long-term performance?
Weekly descaling with 5% citric acid solution is recommended for hard-water regions; quarterly inspection of transducer mounting integrity and drain valve seal condition is advised.
Is the stainless steel tank compatible with common laboratory solvents including acetone and isopropanol?
Yes—the 304 stainless steel construction resists corrosion from alcohols, ketones, and aqueous alkaline solutions; avoid prolonged exposure to concentrated halogenated solvents or strong acids.
