Hanuo HN-30AL Adjustable-Power Ultrasonic Cleaner

Overview

The Hanuo HN-30AL Adjustable-Power Ultrasonic Cleaner is an industrial-grade benchtop ultrasonic cleaning system engineered for reproducible, non-destructive removal of particulate, organic, and oily contaminants from precision components. It operates on the principle of acoustic cavitation: high-frequency (40 kHz) ultrasonic energy induces rapid formation and collapse of microscopic vapor bubbles in aqueous or solvent-based cleaning solutions, generating localized shockwaves and microstreaming that dislodge surface-bound residues without mechanical abrasion. Designed for routine use in regulated laboratory, clinical, and light manufacturing environments—including dental clinics, electronics assembly lines, and QC laboratories—the HN-30AL delivers stable, controllable cleaning performance across diverse sample geometries and material sensitivities.

Key Features

• Adjustable ultrasonic power output (40–100% of 600 W nominal), enabling optimization for delicate substrates (e.g., optical lenses, microfluidic chips) or heavily soiled metal parts (e.g., surgical instruments, machined housings)
• Precise digital temperature control (20–80 °C) with integrated heating element (800 W), supporting thermally enhanced cleaning cycles and consistent solution viscosity management
• Programmable timer (0–30 minutes) with auto-shutdown, ensuring process repeatability and preventing overexposure-induced erosion or pitting
• Sound-dampening hinged lid compliant with OSHA-recommended noise exposure limits (<75 dBA at 1 m), reducing ambient lab noise and enhancing operator safety
• Stainless steel 304 tank (500 × 300 × 200 mm internal dimensions) with rounded corners for uniform energy distribution and easy cleaning maintenance
• Manual drain valve positioned at tank base for safe, residue-free solution exchange—compatible with closed-loop rinse protocols when integrated into multi-stage cleaning workflows

Sample Compatibility & Compliance

The HN-30AL accommodates a broad spectrum of sample types: printed circuit boards (PCBs), dental handpieces and orthodontic appliances, precision-machined aerospace components, watch movements, optical filters, and reusable surgical tools. Its 30 L capacity supports batch processing of medium-volume parts while maintaining adequate solution-to-part ratio for effective cavitation. The unit’s thermal and temporal control parameters align with ASTM F3127–18 (Standard Guide for Ultrasonic Cleaning Process Validation) and support documentation required under ISO 13485:2016 for medical device reprocessing. Though not certified as a Class II medical device, its operational parameters meet baseline requirements for pre-sterilization cleaning validation per AAMI ST79:2017 Annex D.

Software & Data Management

The HN-30AL employs a microprocessor-based digital controller with LED display and tactile membrane keypad—designed for robustness and long-term reliability in high-traffic lab settings. While it does not include PC connectivity or data logging hardware, all operating parameters (power level, temperature setpoint, elapsed time) are retained in non-volatile memory following power interruption. For GLP/GMP environments requiring audit trails, users may integrate external time-stamped video monitoring or manual logbook entries per SOPs referencing USP “Cleaning and Sanitization of Equipment.” Firmware updates are not supported; however, calibration verification (e.g., aluminum foil test per ASTM E1754) is recommended quarterly.

Applications

• Electronics manufacturing: removal of flux residues, solder paste remnants, and particulate debris from SMT assemblies and MEMS sensors
• Dental practice: decontamination of impression trays, burs, and ultrasonic scaler tips prior to autoclaving
• Research laboratories: cleaning of glassware, quartz cuvettes, and ceramic crucibles without compromising surface integrity
• Quality control: preparation of reference standards and calibration artifacts where particle-free surfaces are critical for dimensional metrology
• Maintenance workshops: degreasing of carburetor components, fuel injectors, and watch mechanisms using biodegradable alkaline or neutral-pH solutions

FAQ

Is the HN-30AL suitable for cleaning delicate optics or coated lenses?
Yes—when operated at reduced power (40–60%), low temperature (25–40 °C), and short duration (3–8 min) with a low-surface-tension, non-ionic detergent, it effectively removes dust and fingerprint oils without damaging anti-reflective or hydrophobic coatings.
Does the unit comply with FDA 21 CFR Part 11 requirements?
No—the HN-30AL lacks electronic signature capability, audit trail generation, or user-access controls required for Part 11 compliance. It is intended for use in non-GxP environments or as a pre-GxP cleaning step validated under site-specific SOPs.
Can I use solvents other than water-based cleaners?
Only if explicitly approved by the solvent manufacturer for ultrasonic application and compatible with stainless steel 304. Flammable or chlorinated solvents are strictly prohibited due to explosion risk and tank corrosion potential.
What maintenance is required to ensure long-term performance?
Daily: empty and wipe tank interior; weekly: inspect drain valve seal and clean transducer mounting surface; quarterly: perform aluminum foil test to verify cavitation uniformity and replace cleaning solution reservoir filter (if installed).