Shumei KQ-AS1500VDE Dual-Frequency Digital Ultrasonic Cleaner

Overview

The Shumei KQ-AS1500VDE Dual-Frequency Digital Ultrasonic Cleaner is an industrial-grade laboratory cleaning system engineered for high-reproducibility removal of particulate contaminants, organic residues, and thin-film deposits from precision components, glassware, surgical instruments, and analytical hardware. It operates on the principle of cavitation-induced acoustic streaming—generating controlled microbubble implosion via piezoelectric transducers mounted on the tank bottom and side walls. The dual-frequency architecture (45 kHz and 80 kHz) enables selective optimization: lower frequency delivers higher energy density for robust particle detachment from macro-scale surfaces, while the higher frequency provides finer cavitation distribution ideal for delicate substrates and sub-micron contaminant removal. Designed for continuous operation in QC labs, medical device reprocessing units, and R&D facilities, the unit complies with structural safety standards for Class II electrical equipment and integrates fail-safe monitoring for liquid level, thermal overload, current draw, and voltage fluctuation.

Key Features

• Dual-frequency ultrasonic generation (45 kHz / 80 kHz), with programmable switching intervals (0–999 s) to alternate between cleaning modes during a single cycle
• 1500 W total ultrasonic output, continuously adjustable from 40% to 100% in 1% increments for process optimization and energy conservation
• 6000 W integrated heating system with PID-controlled temperature regulation (ambient to 80 °C ±1 °C), supporting aqueous and mild solvent-based cleaning protocols
• Motorized noise-reduction cover with auto-sensing lid closure logic and interlock circuitry to prevent operation when open
• Electrically actuated fill-and-drain system with solenoid valves and level-sensor feedback, enabling unattended batch processing
• Full digital control interface based on embedded microcontroller architecture; real-time display of actual vs. set parameters including temperature, power, frequency, timer, and liquid level
• Stainless steel 304 construction throughout tank, housing, and internal support structures—resistant to corrosion from common alkaline, neutral, and low-acid cleaning solutions
• Integrated solution filtration module with replaceable cartridge filter (25 µm nominal rating) to extend bath life and maintain ultrasonic transmission efficiency

Sample Compatibility & Compliance

The KQ-AS1500VDE accommodates a wide range of sample geometries and materials—including stainless steel, titanium, borosilicate glass, quartz, silicon wafers, ceramic substrates, and polymer-based labware—without inducing surface pitting or etching under validated operating conditions. Its large 112 L capacity supports immersion of multi-tier racks, trays up to 650 mm × 350 mm, and instrument sets requiring full-submersion sterilization prep. While not certified as a medical device under FDA 510(k) or ISO 13485, the system meets general electrical safety requirements per GB 4793.1 (equivalent to IEC 61010-1) and is routinely deployed in GLP-compliant laboratories where cleaning validation follows ASTM F3127 (Standard Guide for Validation of Cleaning Processes for Reusable Medical Devices) and ISO 15883-4 (Washer-disinfectors — Part 4: Requirements and tests for washer-disinfectors employing chemical disinfection). All firmware logs—including time-stamped start/stop events, parameter changes, and fault codes—are retained onboard for audit trail reconstruction.

Software & Data Management

The embedded control system records operational metadata—including date/time stamps, user-defined program IDs, frequency selection history, power modulation profiles, and thermal ramp curves—in non-volatile memory. While no external PC connectivity (e.g., USB, Ethernet, or RS-232) is standard, optional OEM firmware upgrades may support CSV export via USB flash drive for integration into LIMS or MES environments. All parameter settings are password-protected and retain memory after power cycling. Critical alarms—including low liquid level, overtemperature, overcurrent, and transducer impedance drift beyond ±15% tolerance—are displayed with descriptive error codes and trigger automatic shutdown with latching status until manual reset. Audit-ready event logs satisfy internal QA documentation requirements and align with Annex 11 (Computerized Systems) principles for regulated environments.

Applications

• Cleaning of HPLC, GC, and ICP-MS sample vials, autosampler needles, and nebulizer components prior to trace-metal analysis
• Preparation of optical lenses, mirrors, and photomask blanks for semiconductor metrology and lithography workflows
• Removal of solder flux, epoxy residue, and machining oils from printed circuit boards and MEMS assemblies
• Decontamination of reusable surgical tools, endoscope accessories, and dental handpieces in central sterile supply departments
• Surface preparation of metal coupons for adhesion testing, electroplating, and corrosion studies per ASTM B571 and ISO 8501-1
• Batch cleaning of filtration membranes, chromatography columns, and ultrafiltration cassettes prior to integrity testing

FAQ

Is the KQ-AS1500VDE suitable for use with flammable solvents?
No. This unit is designed exclusively for aqueous and water-miscible cleaning solutions. Flammable or volatile organic solvents must not be used due to absence of explosion-proof certification and lack of vapor extraction provisions.
Can the dual-frequency mode operate simultaneously at both 45 kHz and 80 kHz?
No. The system alternates between frequencies in sequence; simultaneous dual-frequency output is not supported. Frequency switching is software-timed and fully programmable.
What maintenance is required for long-term reliability?
Monthly inspection of the filtration cartridge, quarterly verification of transducer mounting torque, biannual calibration of temperature sensor against NIST-traceable reference, and annual replacement of ultrasonic generator cooling fans per manufacturer service bulletin.
Does the unit support automated cleaning protocol sequencing?
Yes. Up to 10 user-defined programs can be stored, each comprising up to three sequential stages (e.g., degas → heat + sonicate → rinse cycle), with independent control of frequency, power, temperature, and duration per stage.
Is validation documentation available for IQ/OQ/PQ execution?
Shumei provides a Factory Acceptance Test (FAT) report and basic installation checklist. Full qualification packages—including template protocols, test scripts, and blank forms aligned with ASTM E2500 and ISO/IEC 17025—are available upon request through authorized distributors.