Hefei KEJING VGT-1620TD Ultrasonic Cleaner

Overview

The Hefei KEJING VGT-1620TD Ultrasonic Cleaner is a compact, benchtop ultrasonic cleaning system engineered for precision cleaning, degassing, and surface decontamination in laboratory, industrial, and clinical environments. It operates on the principle of ultrasonic cavitation—where high-frequency sound waves (25 kHz or 40 kHz) generate microscopic vacuum bubbles in a liquid medium; their rapid collapse produces localized high-pressure shockwaves and microstreaming that dislodge particulate contaminants, organic residues, and biofilms from complex geometries—including blind holes, crevices, and microstructures—without mechanical abrasion or surface damage. Designed for reproducible, non-invasive cleaning of delicate components, it supports routine maintenance of optical elements, electronic assemblies, surgical instruments, and research-grade samples where manual scrubbing is impractical or introduces contamination risk.

Key Features

• Deep-drawn, seamless 304 stainless steel tank (150 × 140 × 100 mm) eliminates weld seams—enhancing corrosion resistance, structural integrity, and long-term fluid containment reliability.
• Argon-welded stainless steel mesh basket ensures uniform acoustic coupling and prevents shadowing effects during immersion, maximizing energy transfer to submerged parts.
• Dual-frequency operation (25 kHz for heavy particulate removal; 40 kHz for fine-detail cleaning of optics, MEMS devices, and thin-film substrates) enables application-specific optimization.
• Digital timer (0–30 min, 1-min increments) with automatic shutdown provides precise process control and repeatability—critical for SOP-driven workflows in GLP/GMP-aligned labs.
• 60 W transducer array delivers consistent acoustic power density across the tank volume, supporting stable cavitation thresholds even with varying load mass or liquid temperature.
• Compact footprint (190 × 170 × 220 mm) and low mass (<1 kg) facilitate integration into fume hoods, laminar flow cabinets, or shared instrumentation benches without spatial compromise.

Sample Compatibility & Compliance

The VGT-1620TD accommodates a broad range of sample types—including glassware (vials, cuvettes, capillaries), metal components (surgical tools, watch gears, PCBs), polymers (lens housings, microfluidic chips), and biological specimens (tissue culture inserts, filtration membranes). Its non-thermal, solvent-compatible operation allows use with aqueous detergents, ethanol, isopropanol, and mild alkaline solutions—enabling residue-free preparation prior to SEM, XRD, or spectroscopic analysis. While not certified as a medical device under ISO 13485 or FDA 510(k), its construction and performance align with general laboratory hygiene requirements referenced in ISO 15883-1 (washer-disinfectors) and ASTM D2603 (ultrasonic cleaning validation methodology). Users are advised to validate cleaning efficacy per internal SOPs using ATP bioluminescence, gravimetric residue analysis, or contact angle measurement.

Software & Data Management

This model operates via standalone hardware controls—no embedded software, firmware updates, or PC connectivity. All operational parameters (frequency selection, timer setting, power activation) are managed through front-panel tactile buttons and an LED display. As such, it does not incorporate audit trails, user authentication, or electronic record generation. For laboratories subject to 21 CFR Part 11 compliance, manual logbook entries—including operator ID, date/time, cycle parameters, and lot numbers of cleaned items—are recommended to maintain traceability. The absence of network interfaces inherently limits cybersecurity exposure and simplifies qualification (IQ/OQ/PQ) documentation.

Applications

• Pre-analytical sample preparation: removal of cutting oils from machined calibration standards; desorption of adsorbed organics from quartz crystal microbalance (QCM) sensors.
• Electronics manufacturing: flux residue clearance from SMT stencils and solder paste inspection substrates.
• Academic research: cleaning of TEM grids, AFM probes, and microelectrode arrays prior to electrochemical characterization.
• Pharmaceutical QC: decontamination of stainless steel sampling probes used in dissolution testing apparatuses.
• Museum conservation: gentle particulate removal from coinage, engraved metal artifacts, and fragile optical lenses without polishing.
• Teaching labs: demonstration of cavitation physics, surface tension effects, and sonochemical reaction kinetics at undergraduate level.

FAQ

What cleaning solutions are compatible with the VGT-1620TD?

Aqueous alkaline or neutral pH detergents, ethanol, isopropanol, and deionized water are routinely used. Avoid halogenated solvents (e.g., chloroform, carbon tetrachloride) due to potential degradation of sealing materials and OSHA exposure concerns.
Can this unit be used for sterilization?

No. Ultrasonic cleaning removes bioburden but does not achieve sterility assurance levels (SAL ≤ 10⁻⁶). It serves as a prerequisite step before autoclaving, ethylene oxide treatment, or hydrogen peroxide plasma sterilization.
Is degassing functionality built-in?

Yes. The 25 kHz mode enhances degassing efficiency by promoting bulk cavitation—commonly employed to remove dissolved air from solvents prior to HPLC mobile phase preparation or nanoparticle dispersion.
How often should the tank liquid be replaced?

Frequency depends on soiling load and solution chemistry. For light-duty lab use, replacement every 8–12 hours of cumulative operation is recommended to maintain cavitation efficiency and prevent cross-contamination.
Does the unit include a heater?

No. The VGT-1620TD is a non-heated model. Elevated temperature cleaning requires external thermostatic baths or heated ultrasonic systems with integrated PID-controlled heating elements.