Chuanna PS-40AD Dual-Frequency Degassing Ultrasonic Cleaner (10 L Capacity)

Overview

The Chuanna PS-40AD is a laboratory-grade dual-frequency degassing ultrasonic cleaner engineered for precision cleaning of delicate components, analytical glassware, microfluidic devices, and small-volume instrumentation parts. Unlike conventional single-frequency ultrasonic systems, the PS-40AD operates simultaneously at 28 kHz and 40 kHz—two acoustically complementary frequencies that collectively mitigate standing-wave nodes and reduce cleaning blind spots across complex geometries. Its integrated degassing mode initiates a brief low-pressure phase prior to ultrasonic activation, removing dissolved gases from the cleaning medium to enhance cavitation efficiency and reproducibility. The unit employs piezoelectric transducers bonded to a seamless SUS304 stainless steel tank—cold-formed in one piece to eliminate weld seams, minimize corrosion risk, and ensure long-term structural integrity under repeated thermal and acoustic stress. Designed for routine QC labs, R&D facilities, and academic core instrumentation centers, the PS-40AD delivers stable, repeatable cleaning performance without requiring external vacuum pumps or auxiliary degassing equipment.

Key Features

• Dual-frequency operation (28 kHz and 40 kHz) enables broader cavitation spectrum coverage, improving particle removal from recessed surfaces, narrow lumens, and textured substrates.
• Integrated degassing cycle reduces dissolved oxygen and inert gas content in aqueous or mild solvent-based cleaning solutions, promoting more uniform and energetic bubble collapse during sonication.
• One-piece draw-formed SUS304 stainless steel tank eliminates crevices and weld lines—critical for maintaining cleanliness compliance in GLP/GMP-adjacent workflows and minimizing biofilm retention.
• Digital temperature control (20–80 °C) with ±1.5 °C accuracy supports thermally assisted cleaning protocols, including lipid dissolution and polymer residue removal, while preventing thermal shock to sensitive samples.
• Precise digital timer (0–99 minutes) with automatic shutdown ensures process repeatability and prevents overexposure—essential for validated cleaning SOPs in regulated environments.
• Sound-dampening hinged lid reduces ambient noise to ≤65 dB(A) at 1 m distance, meeting typical laboratory acoustic safety guidelines and enabling placement in shared instrument rooms.
• Manual drain valve facilitates rapid, controlled solution exchange—compatible with waste containment protocols for solvent recovery or hazardous material handling.

Sample Compatibility & Compliance

The PS-40AD accommodates a wide range of sample types—including borosilicate glass vials, quartz cuvettes, metal calibration standards, ceramic substrates, and polymeric microplates—provided they are placed in compatible wire mesh baskets to avoid direct contact with the tank bottom. Its non-aggressive, non-abrasive cleaning mechanism avoids surface etching or dimensional alteration common with mechanical scrubbing or high-pH alkaline baths. While not certified to IEC 61000-6-3 or UL 61010-1 as a standalone medical device, the unit complies with general electrical safety requirements for Class I laboratory equipment per EN 61010-1:2010. Its construction materials meet ASTM A240/A240M for 304 stainless steel, and its temperature controller conforms to IEC 60751 Class B tolerance standards. For ISO 13485 or FDA 21 CFR Part 11 environments, users must implement procedural controls (e.g., logbook entries, operator authentication, audit-trail documentation) externally, as the device lacks built-in electronic signature or data export functionality.

Software & Data Management

The PS-40AD is a stand-alone hardware platform with no embedded firmware-based software interface, network connectivity, or data logging capability. All operational parameters—including time, temperature, and power state—are set and monitored via front-panel LED digits and tactile membrane switches. This architecture prioritizes reliability, electromagnetic immunity, and ease of validation: no firmware updates, no OS dependencies, and no cybersecurity attack surface. Users seeking traceability may integrate the unit into broader lab informatics systems via external PLC-triggered relay outputs (optional accessory) or manual entry into ELN platforms such as LabArchives or Benchling. For GxP-aligned operations, standard operating procedures should define calibration intervals for the temperature sensor (recommended annually against NIST-traceable reference), verification of timer accuracy (±1% tolerance), and visual inspection of tank integrity before each use.

Applications

• Cleaning of HPLC autosampler vials, GC inlet liners, and ICP-MS nebulizer tips to prevent cross-contamination and signal drift.
• Preparation of optical components (lenses, prisms, fiber connectors) where sub-micron particulate removal is critical for transmission efficiency.
• Removal of organic residues from semiconductor wafer carriers and MEMS packaging fixtures prior to metrology.
• Routine decontamination of pipette tips, centrifuge tubes, and electrophoresis combs in molecular biology labs.
• Supporting ASTM D2240 (Shore A hardness) and ISO 4618 (coating thickness) sample preparation by eliminating surface contaminants prior to measurement.
• Processing of dental prosthetic molds and orthodontic appliances in academic dentistry labs under controlled thermal conditions.

FAQ

Does the PS-40AD require a separate vacuum pump for degassing?

No—the degassing function is self-contained and achieved through controlled ultrasonic energy modulation and transient pressure reduction within the sealed tank; no external vacuum source is needed.
Can the unit be operated continuously for extended periods?

Continuous operation is limited to ≤8 hours per session to prevent thermal accumulation in the transducer stack and maintain long-term reliability of the heating element and electronics.
Is the tank compatible with organic solvents such as acetone or isopropanol?

Only when used in accordance with local chemical safety regulations and with appropriate ventilation; prolonged exposure to chlorinated or highly volatile solvents may degrade seals and compromise tank passivation.
What maintenance is required to ensure consistent performance?

Monthly inspection of the drain valve seal, quarterly descaling of the heater surface using diluted citric acid, and annual verification of temperature sensor calibration against a certified reference thermometer.
Can the PS-40AD be validated for use in regulated pharmaceutical cleaning processes?

Yes—as a fixed-parameter, non-data-logging device, it can be qualified under IQ/OQ protocols; however, users must establish and document cleaning efficacy (e.g., via residual protein assay or TOC analysis) separately per product-specific validation requirements.