Shumei KQ-AS1500DE Digital Ultrasonic Cleaner

Overview

The Shumei KQ-AS1500DE Digital Ultrasonic Cleaner is a high-capacity, industrial-grade benchtop cleaning system engineered for reproducible, non-destructive removal of particulate contaminants, organic residues, and thin oxide layers from precision components, laboratory glassware, medical instruments, and semiconductor substrates. It operates on the principle of cavitation-induced acoustic streaming: high-frequency (40 kHz) ultrasonic energy transmitted through an aqueous or solvent-based cleaning medium generates transient microbubbles that collapse near surfaces, releasing localized shockwaves and microjets capable of dislodging sub-micron debris without mechanical abrasion. Designed for continuous operation in QC laboratories, R&D facilities, and GMP-compliant manufacturing environments, the KQ-AS1500DE integrates robust thermal management, programmable process control, and fail-safe liquid-level monitoring to ensure consistent cleaning efficacy across batch cycles.

Key Features

• 112-liter stainless steel tank constructed entirely from electropolished 304 stainless steel—resistant to corrosion, thermal stress, and chemical degradation from common alkaline, acidic, and neutral cleaning formulations.
• Digital microcontroller-based interface with real-time display of ultrasonic power (%), bath temperature (°C), elapsed time (min), and actual liquid level—enabling full traceability and repeatable parameter recall.
• Adjustable ultrasonic output (40–100% of 1500 W nominal power) optimized via impedance-matched transducer array; allows fine-tuning for delicate substrates (e.g., MEMS devices) or heavily soiled parts (e.g., machined metal fixtures).
• Integrated 6000 W heating system with PID-controlled temperature regulation (ambient to 80 °C), ensuring stable thermal conditions critical for surfactant activation and contaminant solubilization.
• Electrically actuated sound-dampening lid with interlocked safety cutoff—reduces ambient noise to <65 dB(A) at 1 m distance while preventing vapor loss and enhancing operator safety.
• Automated fill-and-drain function with level-sensing valves and integrated filtration module (5–10 µm particulate retention), supporting solution recirculation and extended bath life in regulated workflows.
• Comprehensive protection suite: low-level cutoff, overtemperature shutdown, overcurrent detection, dry-run prevention, and voltage fluctuation compensation—fully logged in non-volatile memory.

Sample Compatibility & Compliance

The KQ-AS1500DE accommodates a wide range of sample geometries and materials—including glassware (vials, flasks, pipettes), metallic tools (tweezers, forceps, surgical blades), ceramic substrates, silicon wafers, and polymer-based microfluidic chips—without risk of surface pitting or dimensional alteration under standard operating conditions. Its construction and control architecture align with general requirements for laboratory equipment per ISO/IEC 17025:2017 (Clause 6.4 on equipment suitability) and support GLP/GMP documentation practices. While not certified to UL/CE as a standalone medical device, its electrical design complies with IEC 61010-1 safety standards for laboratory equipment. Optional validation protocols (IQ/OQ/PQ) can be executed using third-party thermocouples, calibrated power meters, and cavitation intensity mapping tools.

Software & Data Management

The embedded digital controller stores up to 20 user-defined cleaning protocols—including power ramp profiles, multi-stage heating ramps, and timed pause intervals—with timestamped execution logs retained for ≥10,000 cycles. All parameters are displayed simultaneously on a backlit LCD screen with tactile membrane keys. Though no external PC connectivity (e.g., USB/Ethernet) is built-in, audit-ready records may be manually exported via RS-232 interface (optional adapter) or documented through facility-standard electronic lab notebook (ELN) systems. The system supports 21 CFR Part 11–compliant workflows when paired with validated electronic signature software and access-controlled user accounts managed externally.

Applications

• Precision cleaning of HPLC columns, GC injectors, and spectrophotometer cuvettes prior to calibration.
• Decontamination of reusable surgical instruments in hospital central sterile supply departments (CSSD), compliant with AAMI ST79 guidelines when used with validated enzymatic detergents.
• Pre-bonding surface preparation of optical lenses, laser mirrors, and photomask blanks in cleanroom fabrication lines.
• Removal of flux residues and solder paste remnants from PCB assemblies during electronics manufacturing QA.
• Routine cleaning of centrifuge rotors, bioreactor sensors, and chromatography hardware in biopharmaceutical process development labs.
• Supporting ASTM D2247 (standard practice for testing ultrasonic cleaning equipment) and ISO 13485–aligned cleaning validation studies.

FAQ

What is the maximum recommended cleaning temperature for aqueous solutions?
The system is rated for sustained operation up to 80 °C; however, for long-term stability of most alkaline and neutral detergents, 55–65 °C is optimal.
Can the unit operate continuously for 8 hours or more?
Yes—thermal overload protection and duty-cycle monitoring enable uninterrupted operation within specified ambient conditions (≤35 °C, ≤70% RH).
Is the filtration system serviceable in-house?
The 5–10 µm cartridge filter is user-replaceable; replacement kits and maintenance schedules are included in the technical manual.
Does the system meet any international electromagnetic compatibility (EMC) standards?
It conforms to IEC 61326-1 for laboratory equipment in industrial environments, including conducted/radiated emissions and electrostatic discharge immunity.
How is calibration verification performed?
Ultrasonic power output may be verified using calorimetric methods per ASTM E1752; temperature accuracy is confirmed with NIST-traceable PT100 probes.