Supmile KQ-700VDE Dual-Frequency Ultrasonic Cleaner

Overview

The Supmile KQ-700VDE is a benchtop dual-frequency ultrasonic cleaner engineered for reproducible, high-efficiency cleaning of precision components, laboratory glassware, optical parts, electronic assemblies, and medical instruments. It operates on the principle of acoustic cavitation—generating controlled microbubbles in liquid media via high-frequency mechanical vibrations transmitted through piezoelectric transducers bonded to the stainless-steel tank base. The instrument supports two discrete frequencies—45 kHz and 80 kHz—each optimized for distinct cleaning challenges: lower frequency delivers higher cavitation intensity for robust particulate removal from macro-scale surfaces, while higher frequency provides finer, more uniform energy distribution suited for delicate substrates and sub-micron contaminant detachment. Its 22.5 L capacity tank (500 × 300 × 150 mm internal dimensions) accommodates large or multiple samples simultaneously, making it suitable for QC laboratories, R&D facilities, and small-scale manufacturing cleanrooms.

Key Features

• Dual-frequency operation (45 kHz / 80 kHz) with user-selectable switching and programmable frequency dwell time (1–999 s)
• 700 W total ultrasonic output distributed across ten independently mounted 100 W transducers for uniform energy coupling and minimal standing-wave interference
• Microprocessor-controlled digital interface with non-volatile memory storing up to three preset cleaning protocols—including time, temperature, power level, and frequency selection
• Adjustable ultrasonic power (40–100% in 1% increments) enabling optimization for sensitive materials without compromising cleaning efficacy
• Precise digital temperature control (10–80 °C, ±1 °C accuracy) with real-time display of both setpoint and actual bath temperature
• Programmable timer (1–480 minutes) with automatic shutdown and audible end-of-cycle alert
• Integrated safety systems: low-level fluid detection, thermal cut-off at 90 °C, and electronic monitoring of current/voltage deviations
• Acoustically damped hinged lid with ergonomic handle and transparent viewing window for process observation without exposure to airborne ultrasound
• 304 stainless-steel tank and mesh basket; all-welded construction ensures corrosion resistance and long-term structural integrity

Sample Compatibility & Compliance

The KQ-700VDE is compatible with aqueous and mild solvent-based cleaning solutions, including deionized water, alkaline detergents, and low-concentration ethanol/isopropanol mixtures. Its dual-frequency architecture enables effective cleaning of diverse sample types: metal surgical tools, ceramic substrates, silicon wafers, HPLC vials, fiber optic connectors, and printed circuit boards. The unit meets general electrical safety requirements per IEC 61010-1 for laboratory equipment and conforms to CE marking directives for electromagnetic compatibility (EMC) and low-voltage operation. While not certified for ISO 13485 or FDA 21 CFR Part 11 out-of-the-box, its digital logging capability (time-stamped parameter records stored in non-volatile memory), audit-ready protocol recall, and deterministic operational repeatability support integration into GLP/GMP environments when validated per site-specific SOPs.

Software & Data Management

The KQ-700VDE operates via an embedded 8-bit microcontroller with firmware supporting persistent parameter retention across power cycles. All user inputs—including frequency selection, power percentage, temperature setpoint, and timer duration—are digitally encoded and stored in EEPROM. The front-panel LCD displays real-time operational status: elapsed time, remaining time, current bath temperature, active frequency, and instantaneous power output. Though no external PC connectivity (e.g., RS-232, USB, or Ethernet) is provided, the device supports manual documentation of cleaning parameters for batch traceability. For regulated applications, users may implement external validation protocols using calibrated thermistors and hydrophone-based ultrasonic field mapping to verify spatial uniformity and intensity compliance per ASTM E1721 or ISO 13077 standards.

Applications

• Removal of organic residues, polishing compounds, and solder flux from microelectronic components prior to inspection or coating
• Decontamination of reusable surgical instruments in hospital central sterile supply departments (CSSD)
• Cleaning of chromatography columns, syringe filters, and volumetric glassware in analytical chemistry labs
• Preparation of substrates for thin-film deposition or surface characterization techniques (XPS, AFM, SEM)
• Extraction assistance in sample prep workflows for environmental or pharmaceutical analysis
• Routine maintenance of optical lenses, spectrometer cuvettes, and sensor housings requiring particle-free surfaces

FAQ

What is the difference between 45 kHz and 80 kHz operation?
45 kHz produces larger, more energetic cavitation bubbles ideal for removing heavy particulates from rugged surfaces. 80 kHz generates smaller, more densely distributed bubbles better suited for fine-detail cleaning and fragile substrates with reduced risk of surface erosion.

Can the unit be used with flammable solvents?
No. The KQ-700VDE is designed exclusively for aqueous or low-volatility, non-flammable cleaning solutions. Use of flammable solvents poses fire hazard and voids warranty and safety certification.

Is the heating function independent of ultrasonic activation?
Yes. Heating can be enabled or disabled regardless of ultrasonic mode, allowing for warm rinse cycles or temperature-controlled soak steps without cavitation.

How is tank fill level monitored?
An integrated float switch detects low fluid levels and disables ultrasonic output while illuminating a warning indicator—preventing transducer damage and ensuring consistent acoustic coupling.

Does the unit include a degassing cycle?
While not labeled as a dedicated “degas” mode, initiating ultrasonic operation at 80 kHz for 5–10 minutes prior to sample immersion effectively removes dissolved air from the cleaning solution, enhancing cavitation efficiency.