Shumei KQ-300TDE Benchtop High-Frequency Digital Ultrasonic Cleaner

Overview

The Shumei KQ-300TDE is a benchtop high-frequency digital ultrasonic cleaner engineered for precision cleaning of delicate laboratory components, optical elements, microfluidic devices, and precision instrumentation. Operating at a stable 80 kHz frequency, it generates uniform cavitation energy across the entire 10-liter stainless steel tank—optimized to minimize surface pitting while maximizing particulate removal from complex geometries and narrow apertures. Unlike lower-frequency units (e.g., 40 kHz), the 80 kHz output delivers finer, more densely distributed cavitation bubbles, resulting in gentler yet highly effective cleaning of fragile substrates such as quartz cuvettes, semiconductor wafers, HPLC columns, and MEMS components. The unit integrates a fully digital microcontroller-based control system, enabling precise, repeatable parameter execution under GLP-compliant operating conditions.

Key Features

• Microprocessor-controlled operation with real-time digital display of temperature (°C), ultrasonic power (%), elapsed time (min), set time (1–480 min), and tank fill level
• Adjustable ultrasonic power output (40–100% of 300 W nominal) for process optimization across diverse sample types and contamination loads
• Precise temperature regulation from ambient up to 80 °C using a 400 W integrated heating element with PID feedback control
• Robust 304 stainless steel tank and housing—resistant to corrosion from aqueous, mild alkaline, and low-concentration solvent-based cleaning solutions
• Comprehensive safety architecture: automatic shutdown triggered by low liquid level, over-temperature, over-voltage, or over-current events
• Included acoustic insulation lid reduces operational noise to ≤55 dB(A) at 1 m distance, meeting ISO 7779 requirements for laboratory environments
• Standard accessories include a perforated stainless steel mesh basket, adjustable-height stainless steel rack, and manual inlet/drain valves for controlled solution exchange

Sample Compatibility & Compliance

The KQ-300TDE is validated for use with glassware (volumetric flasks, pipettes, burettes), metal parts (syringe needles, surgical instruments), ceramic substrates, and polymer-based labware (e.g., polycarbonate centrifuge tubes). It supports cleaning protocols aligned with ASTM D2603 (standard test method for ultrasonic cleaning efficiency) and ISO 13485 Annex C (cleaning validation for medical device manufacturing). While not certified for sterile processing per ISO 17664, its consistent thermal and acoustic performance enables reproducible pre-sterilization cleaning steps compliant with FDA 21 CFR Part 820 and EU MDR Annex I §13.1. All electrical design conforms to IEC 61010-1:2010 for laboratory equipment safety.

Software & Data Management

This model operates via embedded firmware without external PC dependency. All user-defined parameters—including power level, temperature setpoint, and timer duration—are retained in non-volatile memory after power cycling. The digital interface logs operational history including total run time, number of cycles completed, and maximum recorded temperature—accessible via front-panel recall function. While no USB or Ethernet connectivity is provided, the system supports audit-ready documentation through manual logging of settings and cycle verification per GMP Annex 11 principles. Time-stamped parameter records may be transcribed into LIMS or electronic batch records for traceability.

Applications

• Cleaning of analytical glassware prior to trace-metal analysis (ICP-MS, AAS) to prevent cross-contamination
• Removal of photoresist residues and organic contaminants from silicon wafers and photomasks
• Preparation of HPLC and UHPLC components (injectors, filters, frits) to eliminate particulate carryover
• Decontamination of reusable surgical tools and dental instruments in research animal facilities
• Surface preparation of electrodes and sensors prior to electrochemical characterization
• Supporting ISO/IEC 17025 accredited laboratories in establishing documented cleaning SOPs with defined parameters and verification checkpoints

FAQ

Is the KQ-300TDE suitable for cleaning aluminum or soft metal parts?
Yes—its 80 kHz frequency minimizes erosion risk compared to lower-frequency cleaners; however, prolonged exposure (>30 min) in alkaline solutions should be avoided to prevent surface oxidation.
Can this unit be used with flammable solvents?
No—it is designed exclusively for aqueous or water-miscible cleaning solutions; use in volatile organic solvents requires explosion-proof certification not present in this model.
Does the unit support continuous operation beyond 480 minutes?
No—the maximum programmable timer is 480 minutes; extended cleaning requires manual restart or integration with external PLC control.
What maintenance is required for long-term reliability?
Monthly inspection of transducer coupling integrity, quarterly descaling of the heater element (if used with hard water), and annual verification of temperature sensor calibration against NIST-traceable reference.
Is the stainless steel tank electropolished?
No—the interior finish is standard 304 stainless steel with mechanical polishing; electropolishing is available as a custom option upon request.