Hanuo HN3-120A Heated Ultrasonic Cleaner

Overview

The Hanuo HN3-120A Heated Ultrasonic Cleaner is a precision-engineered benchtop cleaning system designed for demanding laboratory, quality control, and maintenance applications. It operates on the principle of ultrasonic cavitation—where high-frequency sound waves (40 kHz) generate microscopic vacuum bubbles in the cleaning solvent; their rapid collapse produces localized high-pressure shockwaves and microstreaming that effectively dislodge particulate contaminants, organic residues, biofilms, and adsorbed layers from complex geometries—including blind holes, crevices, and porous surfaces. Integrated heating (adjustable from ambient to 80 °C) enhances solvent activity, accelerates soil dissolution, and improves cleaning reproducibility—particularly for waxy, greasy, or thermally sensitive residues. Unlike basic sonic cleaners, the HN3-120A employs a microprocessor-controlled transducer driver with stable frequency output and thermal protection circuitry, ensuring consistent energy delivery across extended operation cycles.

Key Features

• Microprocessor-based digital control system with real-time display of time, temperature, and cumulative operating hours (up to 99,999 h)
• Precisely adjustable ultrasonic cleaning duration (1–99 minutes) with automatic shutdown
• Independent temperature regulation (ambient to 80 °C) using PID-controlled stainless steel heating elements embedded in the tank base
• Robust 304 stainless steel tank (230 × 140 × 100 mm) and housing for chemical resistance and long-term structural integrity
• Integrated sound-dampening lid to reduce acoustic noise and prevent solvent evaporation during operation
• Standard stainless steel mesh basket for secure sample placement and uniform exposure to ultrasonic energy
• Manual drain port located at the tank bottom for safe, controlled solvent disposal
• Optional dual-frequency mode (40/59 kHz) available on select variants for optimized cleaning across diverse material classes and contaminant types

Sample Compatibility & Compliance

The HN3-120A accommodates a broad range of substrates and components without risk of surface damage when operated within validated parameters—including glassware (vials, pipettes, cuvettes), metal parts (stainless steel, aluminum, titanium), ceramic substrates, silicone tubing, PTFE components, and delicate optical elements. Its design conforms to general safety requirements outlined in IEC 61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use). While not certified for sterile processing per ISO 13485 or FDA 21 CFR Part 820, the unit supports GLP-compliant cleaning workflows when integrated into documented SOPs—including traceable time/temperature logging via external data loggers. For regulated environments, users are advised to perform periodic verification of ultrasonic output consistency (e.g., using aluminum foil erosion test per ASTM D2603) and thermal uniformity mapping.

Software & Data Management

The HN3-120A operates via an embedded single-chip microcontroller with non-volatile memory for parameter retention after power cycling. All operational settings—including timer value, setpoint temperature, and accumulated runtime—are stored locally and displayed on a high-contrast LED interface. No proprietary software, USB connectivity, or cloud integration is provided; this intentional design prioritizes reliability, electromagnetic compatibility (EMC), and minimal maintenance overhead in electromagnetically noisy lab environments. For audit readiness, laboratories may integrate the unit into broader environmental monitoring systems via analog temperature output (0–5 V) or dry-contact relay signals (available upon request with OEM configuration). Full traceability is maintained through manual logbook entries or LIMS-integrated timestamped records.

Applications

• Pre-analytical preparation: Cleaning of HPLC vials, GC autosampler syringes, electrophoresis combs, and microcentrifuge tubes to eliminate carryover and background interference
• Medical device reprocessing: Decontamination of reusable surgical instruments, endoscope components, and dental handpieces prior to sterilization
• Materials science: Removal of sintering aids, binder residues, or polishing compounds from sintered ceramics, metal powders, and additive-manufactured parts
• Electronics manufacturing: Degreasing of PCB assemblies, semiconductor fixtures, and MEMS components without mechanical abrasion
• Pharmaceutical R&D: Solvent-assisted cleaning of reaction vessels, filtration housings, and lyophilization trays under cGMP-aligned cleaning validation protocols
• Jewelry and precision optics: Non-destructive removal of polishing compounds, fingerprints, and adhesive residues from gemstones, watch movements, and coated lenses

FAQ

What cleaning solvents are compatible with the HN3-120A?
Aqueous alkaline, neutral, or mild acidic solutions are recommended. Avoid halogenated hydrocarbons, strong oxidizers (e.g., concentrated nitric acid), and low-flashpoint solvents unless used in explosion-proof configurations.
Is the unit suitable for cleaning delicate MEMS or microfluidic devices?
Yes—when operated at reduced power (via duty-cycle modulation, if enabled) and lower temperatures (≤45 °C), and with degassed solvents to minimize cavitation intensity.
Does the HN3-120A meet ISO 13485 or FDA requirements for medical device cleaning?
It is not certified as a medical device or sterilization equipment. However, it may be qualified as part of a validated cleaning process per ISO 15883 or AAMI TIR30.
Can the cumulative hour counter be reset?
No—the counter is non-resettable and designed for maintenance scheduling and lifetime tracking per ISO 55001 asset management principles.
Is a drain pump available as an accessory?
Not standard; only manual drain valve is included. External peristaltic pumps may be connected via custom fittings.