Shumei KQ-3200DB Benchtop Digital Ultrasonic Cleaner

Overview

The Shumei KQ-3200DB is a benchtop digital ultrasonic cleaner engineered for precision cleaning, degassing, emulsification, homogenization, solvent extraction, particle dispersion, and cell disruption in laboratory, academic, and light industrial settings. It operates on the principle of piezoelectric ultrasonic cavitation: high-frequency mechanical vibrations (40 kHz) generated by transducers bonded to the stainless steel tank base induce microscopic bubble formation and collapse in the cleaning medium—typically aqueous or mild solvent-based solutions. This transient cavitation delivers localized energy sufficient to dislodge sub-micron contaminants from complex geometries—including microfluidic channels, optical components, precision tools, and biological sample holders—without mechanical abrasion or thermal degradation. The unit integrates heating and timed ultrasonic agitation in a compact footprint (320 × 174 × 320 mm), making it suitable for standard fume hoods or shared lab benches.

Key Features

• Microprocessor-controlled digital interface with simultaneous real-time display of set and actual ultrasonic power (%), temperature (°C), elapsed time (min), and cumulative operating hours (up to 999,999 h)
• Adjustable ultrasonic output (40–100% of 150 W nominal power) enabling process optimization for delicate vs. robust samples
• Precise thermostatic control (ambient to 80 °C) via 600 W immersion heater with ±1 °C stability and over-temperature safety cutoff
• Programmable timer (1–480 minutes) with auto-shutdown and audible end-of-cycle alert
• Stainless steel (AISI 304-equivalent) inner tank (300 × 150 × 150 mm) and structural housing ensure corrosion resistance and long-term dimensional stability
• Included stainless steel mesh basket with argon-welded construction for uniform sample support and acoustic transparency
• Integrated safety protections: low-water level detection, over-voltage, over-current, and over-temperature indicators with automatic system lockout
• Manual drain valve located at tank base for controlled solution removal; no integrated lid or sound-dampening cover

Sample Compatibility & Compliance

The KQ-3200DB accommodates a broad range of sample types—including glassware (vials, cuvettes, pipette tips), metal parts (surgical instruments, calibration standards), ceramic substrates, and polymer-based labware—provided they are compatible with aqueous or low-boiling-point solvents (e.g., isopropanol, ethanol, or alkaline detergents). It is not intended for flammable, highly volatile, or strongly oxidizing media without external ventilation. While not certified to ISO/IEC 17025 or ASTM D2603 (standard test method for ultrasonic cleaning performance), its consistent 40 kHz frequency and stable power delivery support repeatable cleaning validation protocols required under GLP environments. The digital logging of operational parameters (time, temperature, power) supports basic traceability for internal quality records.

Software & Data Management

This model operates via embedded firmware only—no external PC connectivity, USB port, or proprietary software suite is provided. All parameter settings (power %, temperature setpoint, timer duration) are retained in non-volatile memory across power cycles. The front-panel LCD displays both setpoints and real-time feedback (e.g., actual bath temperature, remaining time), enabling manual process documentation. For regulated laboratories requiring electronic audit trails (e.g., FDA 21 CFR Part 11 compliance), users must implement external logging via video recording, manual entry into LIMS, or third-party data acquisition hardware interfaced through analog outputs (if available on custom variants).

Applications

• Routine cleaning of HPLC vials, GC autosampler trays, and spectrophotometer cells prior to analysis
• Removal of polishing residues from optical lenses and semiconductor wafers
• Cell lysis and nucleic acid extraction in molecular biology workflows
• Deagglomeration of nanoparticle suspensions for DLS or TEM sample prep
• Preparation of homogeneous catalyst slurries and electrode coatings
• Degassing of viscous resins prior to casting or 3D printing

FAQ

Is the KQ-3200DB suitable for cleaning delicate optics or MEMS devices?
Yes—when operated at reduced power (40–60%) and with low-surface-tension, non-ionic detergent solutions, it effectively removes particulate contamination without damaging microstructures.
Does the unit include a lid or noise-reduction enclosure?
No—the KQ-3200DB ships without a lid or acoustic dampening cover. Users requiring reduced ambient noise or vapor containment should source third-party acrylic enclosures rated for ultrasonic compatibility.
Can the heater and ultrasonics operate simultaneously?
Yes—both functions are independently controllable and may run concurrently, enabling hot ultrasonic cleaning protocols essential for removing organic films and waxes.
What maintenance is required for long-term reliability?
Routine cleaning of the tank interior with mild citric acid solution prevents mineral buildup; transducer integrity should be verified annually via impedance check if used continuously in demanding applications.
Is the stainless steel tank electropolished or passivated?
The manufacturer specifies “high-grade stainless steel” but does not disclose surface finish certification; for critical pharmaceutical applications, users should verify surface roughness (Ra ≤ 0.8 µm) and perform passivation per ASTM A967 prior to first use.