Shumei KQ-700VDV Desktop Tri-Frequency Digital Ultrasonic Cleaner

Overview

The Shumei KQ-700VDV is a desktop tri-frequency digital ultrasonic cleaner engineered for laboratories and research facilities requiring high-fidelity, multi-stage cleaning performance in a single integrated platform. Unlike conventional single-frequency ultrasonic cleaners—whose cavitation fields are optimized only for specific particle sizes or contaminant adhesion energies—the KQ-700VDV employs three independently selectable and programmable ultrasonic frequencies (45 kHz, 80 kHz, and 100 kHz) to generate complementary acoustic pressure fields within the same cleaning bath. This multi-resonance architecture enables sequential coarse, intermediate, and fine cleaning stages without manual intervention or equipment reconfiguration. At 45 kHz, the system delivers higher cavitation intensity suited for macro-particulate removal and heavy organic residue; at 80 kHz, it achieves balanced energy distribution for general-purpose precision cleaning of delicate substrates; and at 100 kHz, it produces finer, more uniform bubble collapse dynamics ideal for sub-micron particle detachment and surface decontamination of microfluidic devices, optical components, and semiconductor wafers. The unit’s monolithic transducer–tank integration ensures minimal acoustic loss and consistent energy coupling across all operating modes.

Key Features

• Tri-frequency digital control with programmable switching intervals (1–999 s), enabling automated multi-stage cleaning protocols
• 700 W total ultrasonic output power, continuously adjustable from 40% to 100% for process optimization and energy efficiency
• Integrated 800 W heating system with ±1 °C temperature stability over 10–80 °C range, supporting temperature-sensitive cleaning chemistries
• Real-time digital display of nine critical parameters: actual and set ultrasonic frequency, elapsed and programmed time, applied power level, bath temperature (actual and set), liquid level (measured and configured), and cumulative operational hours (up to 999,999 h)
• Dual-safety monitoring: automatic shutdown on low/no liquid detection and overvoltage/overcurrent conditions
• Vapor recovery system minimizes solvent evaporation and improves workplace air quality during volatile cleaning agent use
• Acoustically damped stainless-steel lid with thermal insulation reduces ambient noise (<55 dB(A)) and external heat transfer
• Electropolished SUS304 stainless-steel tank and rack ensure corrosion resistance, cleanability, and compliance with ISO 14644-1 Class 5 cleanroom handling requirements
• Embedded microcontroller firmware supports repeatable parameter recall, factory calibration traceability, and firmware-upgradable functionality

Sample Compatibility & Compliance

The KQ-700VDV accommodates a broad spectrum of sample geometries and material classes—including glassware, metal fixtures, ceramic substrates, polymer microplates, MEMS sensors, and biological tissue carriers—without risk of surface pitting or acoustic erosion under controlled duty cycles. Its triple-frequency capability allows users to match resonant excitation to substrate acoustic impedance and contaminant bond strength, thereby minimizing mechanical stress on fragile samples. The unit conforms to IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity standards). All electrical safety design complies with IEC 61010-1 for laboratory equipment. While not certified for medical device reprocessing per ISO 17664 or AAMI ST79, its programmable parameters and audit-ready digital logging support GLP-compliant documentation when integrated into validated lab workflows.

Software & Data Management

Operation is managed via an embedded real-time microcontroller interface with non-volatile memory for persistent storage of up to 10 user-defined cleaning profiles. Each profile retains frequency sequence, power ramping steps, temperature ramp rates, dwell times, and liquid-level thresholds. The system logs timestamped operational events—including start/stop triggers, fault codes, and parameter deviations—for internal review. Though no external PC connectivity (e.g., USB/RS232/Ethernet) is provided, the comprehensive on-device display satisfies FDA 21 CFR Part 11 requirements for electronic record integrity when used in conjunction with institutional SOPs governing data transcription and signature verification.

Applications

• Pre-analytical sample preparation: removal of residual solvents, fingerprints, and polishing compounds from HPLC vials, cuvettes, and NMR tubes
• QC/QA in pharmaceutical manufacturing: cleaning of stainless-steel contact parts prior to sterilization validation per USP
• Materials science: debubbling epoxy resins, dispersing nanomaterials in suspension, and degassing casting media
• Electronics R&D: post-reflow flux residue removal from PCB assemblies and MEMS packaging substrates
• Life sciences: gentle cell dissociation support, DNA extraction tube cleaning, and histology slide deparaffinization aid
• Academic research: standardization of surface conditioning protocols across multi-lab collaborative studies

FAQ

Can the KQ-700VDV operate continuously for extended durations?
Yes—the unit supports uninterrupted operation up to 480 minutes per cycle, with cumulative runtime tracking exceeding 114 years (999,999 h); thermal management and duty-cycle safeguards prevent overheating.
Is the 100 kHz mode suitable for cleaning microfluidic chips?
Yes—100 kHz generates smaller, more densely distributed cavitation bubbles, reducing shear stress while enhancing penetration into micron-scale channels; optimal results require aqueous, low-surface-tension solutions.
Does the vapor recovery system accommodate chlorinated solvents?
No—the system is designed for water-based and alcohol-based cleaning solutions only; chlorinated or highly flammable solvents require external condensation traps and explosion-proof infrastructure.
How is calibration traceability maintained?
Each unit ships with a factory calibration certificate referencing NIST-traceable ultrasonic power meters and PT100 temperature probes; periodic verification follows ASTM E1557 procedures.
Can frequency sequences be customized beyond the default 45/80/100 kHz triplet?
No—the hardware is configured exclusively for the 45/80/100 kHz combination; alternative trios (e.g., 28/45/100 kHz) are available only as OEM-configured variants under separate model numbers.