LY WD-9415A Ultrasonic Cleaner (2 L Capacity, 50 W Adjustable Power, 20–80 °C Heated)
| Brand | LY |
|---|---|
| Origin | Beijing, China |
| Model | WD-9415A |
| Tank Dimensions (L×W×H) | 150×140×100 mm |
| Capacity | 2 L |
| Ultrasonic Power | 50 W |
| Power Adjustment Range | 40–99% |
| Heating Power | 200 W |
| Temperature Control Range | 20–80 °C |
| Frequency | 40 kHz (standard for general-purpose cleaning) |
| Certifications | CE-compliant design, meets ISO 13485-aligned manufacturing practices for lab equipment |
Overview
The LY WD-9415A Ultrasonic Cleaner is a compact, benchtop ultrasonic cleaning system engineered for precision and reproducibility in routine laboratory workflows. Operating at a nominal frequency of 40 kHz, it utilizes piezoelectric transducers bonded to the tank bottom to generate high-frequency acoustic pressure waves in aqueous or mild solvent-based cleaning media. These waves induce controlled cavitation—microscopic bubble formation and implosive collapse—which mechanically dislodges particulate contaminants, organic residues, and loosely adhered biofilms from delicate instrumentation, glassware, surgical tools, and microfluidic components. Designed for Class II biosafety labs, QC/QA environments, and academic research settings, the WD-9415A delivers consistent cleaning performance across standardized cycles without mechanical abrasion or thermal degradation of sensitive substrates.
Key Features
- Stainless steel tank (304 grade) with rounded corners for uniform energy distribution and easy decontamination
- Digital control panel with independent adjustment of ultrasonic power (40–99% in 1% increments) and heating temperature (20–80 °C in 1 °C steps)
- Programmable timer (1–30 min) with automatic shutdown and audible end-of-cycle alert
- Integrated degassing function to minimize air entrainment prior to cleaning, enhancing cavitation efficiency
- Over-temperature and dry-run protection circuits compliant with IEC 61000-6-3 EMC standards
- Low-noise operation (<55 dB(A) at 1 m), suitable for shared lab spaces and laminar flow hoods
Sample Compatibility & Compliance
The WD-9415A accommodates standard laboratory items including pipette tips, crucibles, syringe filters, HPLC vials, microscope slides, and small-volume reaction vessels. Its 2 L tank volume supports immersion of up to six 50 mL centrifuge tubes or twelve 15 mL conical tubes simultaneously. The unit is compatible with water, ethanol, isopropanol, and low-concentration alkaline or enzymatic cleaning solutions—provided pH remains within 4–10 to prevent transducer corrosion. All materials contacting the cleaning medium meet USP Class VI biocompatibility requirements. While not certified for sterile processing per ISO 17664, the device supports GLP/GMP-aligned cleaning validation protocols when integrated into documented SOPs. Its electrical safety design conforms to IEC 61010-1 for laboratory equipment.
Software & Data Management
The WD-9415A operates via embedded firmware with no external software dependency—ensuring reliability and eliminating cybersecurity vulnerabilities associated with connected systems. All operational parameters (power level, temperature setpoint, duration) are retained after power cycling. For audit readiness, users may manually log cycle data (date/time, operator ID, load description, parameter settings, visual inspection outcome) in paper-based or LIMS-integrated electronic records. Optional RS-232 interface (available on WD-9415B and higher models) enables basic remote start/stop and parameter readback for integration into centralized lab automation platforms—though the WD-9415A itself relies on standalone operation to maintain simplicity and regulatory traceability.
Applications
- Routine cleaning of analytical glassware prior to trace metal analysis (e.g., ICP-MS sample preparation)
- Removal of residual polymers and photoresists from semiconductor wafers and mask blanks
- Pre-sterilization cleaning of reusable stainless-steel forceps, needle holders, and dental instruments
- Deposition uniformity enhancement in thin-film coating workflows by eliminating substrate surface particulates
- Supporting ASTM D2240 (Shore A hardness) sample preparation where surface contamination affects indentation accuracy
- Validation of cleaning efficacy per USP “Cleaning and Cleaning Validation” guidelines using TPC or ATP bioluminescence assays
FAQ
What is the recommended cleaning solution for removing proteinaceous residue?
Use a neutral-pH enzymatic cleaner (e.g., 0.5% protease solution in deionized water) at 40 °C for 10 minutes. Avoid strong alkalis above pH 11 to preserve transducer integrity.
Can this unit be used for passivation of stainless steel parts?
No. Passivation requires nitric or citric acid immersion under tightly controlled time/temperature conditions; the WD-9415A lacks acid-resistant tank lining and precise chemical compatibility certification.
Is the temperature calibration traceable to NIST standards?
The built-in PT100 sensor is factory-calibrated with ±1.5 °C accuracy at 25 °C and 60 °C. End users may perform field verification using a NIST-traceable thermometer per ISO/IEC 17025 clause 6.5.2.
Does the unit include a lid with condensation management?
Yes—the polycarbonate lid features an integrated vapor barrier and sloped inner surface to redirect condensate away from controls and prevent cross-contamination between cycles.
What maintenance is required to sustain cavitation efficiency over time?
Monthly inspection of tank integrity, quarterly descaling with 5% acetic acid if hard water is used, and annual verification of transducer impedance (target: 25–35 Ω at 40 kHz) using an LCR meter.
