SHUMEI KQ-500V Benchtop Ultrasonic Cleaner

Overview

The SHUMEI KQ-500V is a general-purpose benchtop ultrasonic cleaner engineered for consistent, reproducible cleaning of laboratory glassware, precision components, medical instruments, and analytical sample preparation vessels. It operates on the principle of acoustic cavitation: high-frequency mechanical vibrations (40 kHz) generated by piezoelectric transducers bonded to the stainless steel tank base propagate through the cleaning liquid, inducing transient microbubble formation and collapse. This localized energy release disrupts particulate contaminants, organic residues, and loosely adhered biofilms without mechanical abrasion or chemical aggression. Designed for routine lab use rather than specialized industrial applications, the KQ-500V delivers stable ultrasonic output across its full 27 L working volume, with integrated thermal control enabling temperature-assisted cleaning protocols critical for removing waxy, viscous, or proteinaceous soils.

Key Features

• Robust 304 stainless steel tank and housing—resistant to corrosion from aqueous detergents, mild solvents, and repeated thermal cycling.
• PTC (Positive Temperature Coefficient) surface-mount heating system ensures uniform temperature distribution and inherent overheat protection without external thermostats.
• Dedicated auto-sweep frequency circuitry minimizes standing wave formation and hot-spot accumulation, improving cleaning uniformity across complex geometries and multi-item loads.
• Mechanical timer with 1–20 minute range provides precise process repeatability; no software dependency or calibration drift.
• Integrated sound-dampening lid reduces ambient noise to ≤55 dB(A) at 1 m distance—compliant with ISO 7779 and EU Directive 2006/42/EC for laboratory equipment noise emission.
• Manual fill-and-drain interface allows controlled fluid handling in environments lacking permanent plumbing or where solvent compatibility prohibits automated drainage.
• Standard configuration includes a removable 304 stainless steel mesh basket and lid—both autoclavable and compatible with common alkaline and enzymatic cleaning formulations.

Sample Compatibility & Compliance

The KQ-500V accommodates standard laboratory items including volumetric flasks (up to 2 L), centrifuge tubes (50 mL), HPLC vials, pipette tips, filtration housings, and disassembled optical components. Its 180 mm tank depth supports upright immersion of tall apparatus while maintaining adequate degassing time. The unit meets CE marking requirements under the Low Voltage Directive (2014/35/EU) and Electromagnetic Compatibility Directive (2014/30/EU). While not certified to ISO 13485 or FDA 21 CFR Part 820, its construction and operational parameters align with GLP-aligned cleaning validation practices—including documented temperature ramp profiles, dwell-time consistency, and material compatibility with USP cleaning agent guidelines.

Software & Data Management

The KQ-500V employs an embedded analog control architecture with no digital interface, firmware, or data logging capability. This design eliminates cybersecurity risks, software obsolescence, and regulatory complications associated with electronic records. All operating parameters—including set temperature, elapsed time, and power-on status—are observable via front-panel indicators. For laboratories requiring audit trails, external temperature loggers (e.g., compliant with ASTM E2857) may be deployed alongside the unit to record bath temperature stability per USP Analytical Instrument Qualification protocols.

Applications

• Routine decontamination of GC/HPLC autosampler vials, syringe filters, and column frits prior to reuse.
• Preparation of trace-metal analysis containers in environmental and clinical labs, minimizing particulate carryover.
• Cleaning of electron microscopy grids and TEM sample holders where solvent residue must be avoided.
• Removal of flux residues from PCB prototypes and microelectronic assemblies during R&D prototyping.
• Supporting ASTM D2240 (Shore A hardness testing) sample conditioning by eliminating mold-release agents from elastomer test specimens.
• Complementing ISO 14644-1 cleanroom garment laundering validation through standardized sonic agitation of swab samples.

FAQ

Is the ultrasonic frequency adjustable?
No—the KQ-500V operates exclusively at 40 kHz, optimized for broad-spectrum contaminant removal in aqueous and mild detergent solutions.
Can this unit be used with flammable solvents?
No—this model lacks explosion-proof certification and is rated only for water-based or non-volatile aqueous cleaning solutions.
Does it support continuous operation beyond 20 minutes?
The mechanical timer limits single-cycle operation to 20 minutes; manual reset is required for extended cleaning sequences.
What maintenance is required for long-term reliability?
Transducer integrity should be verified annually via impedance measurement; tank gasket inspection and PTC heater resistance checks are recommended every 6 months.
Is the stainless steel mesh basket included in the standard configuration?
Yes—a 304 stainless steel mesh basket and insulated sound-dampening lid are supplied as standard accessories.