Shanghai Kedao SK1200G Low-Frequency Ultrasonic Cleaner with Integrated Degassing Function

Overview

The Shanghai Kedao SK1200G is a compact, benchtop low-frequency ultrasonic cleaner engineered for routine laboratory cleaning tasks requiring mechanical cavitation energy at 35 kHz. Operating on the principle of acoustic cavitation—where high-intensity sound waves generate transient microbubbles in liquid media that collapse violently upon implosion—the device delivers effective removal of particulate contaminants, organic residues, and loosely adhered biofilms from solid surfaces. Its integrated degassing function initiates a pre-cleaning cycle to evacuate dissolved air from the cleaning solution, thereby enhancing cavitation efficiency and ensuring reproducible cleaning performance across successive batches. Designed for general-purpose use in academic labs, QC environments, and small-scale R&D settings, the SK1200G complies with fundamental safety and electromagnetic compatibility requirements for Class I electrical equipment per IEC 61010-1. It is not intended for sterilization or validated bioburden reduction per ISO 17664 or EN 13060, but serves as a critical first-stage cleaning tool prior to autoclaving or chemical disinfection.

Key Features

• Optimized 35 kHz transducer array delivering uniform acoustic energy distribution across the 2 L stainless steel tank (304 grade), resistant to corrosion from aqueous and mild solvent-based cleaning solutions.
• Degassing mode automatically reduces dissolved gas content in the bath prior to standard cleaning cycles, improving cavitation intensity and minimizing surface pitting on delicate substrates.
• Digital timer with precise 1-minute increments (1–99 min) enables repeatable process control; LED display provides real-time countdown and operational status feedback.
• Compact footprint (180 × 160 × 220 mm) and lightweight construction (2.9 kg net) support flexible placement on fume hoods, laminar flow cabinets, or shared lab benches without structural reinforcement.
• Included stainless steel support rack elevates samples above tank bottom, preventing sediment redeposition and facilitating even exposure to ultrasonic fields.
• Thermal cutoff protection and short-circuit safeguard ensure stable operation under continuous duty cycles within ambient temperature ranges of 10–35 °C.

Sample Compatibility & Compliance

The SK1200G accommodates a broad range of non-porous and moderately porous substrates including glassware (vials, pipettes, cuvettes), metal tools (tweezers, forceps), ceramic components, and polymer-based fixtures (e.g., PTFE-coated stir bars). It is unsuitable for cleaning soft optics, MEMS devices, or heat-sensitive biological specimens due to lack of temperature regulation. While not certified to UL/CSA or CE medical device directives, its electrical design conforms to IEC 61010-1 for laboratory measurement and control equipment. Users performing cleaning validation in regulated environments (e.g., pharmaceutical QC labs) must establish in-house protocols—including bath solution composition, load configuration, and post-cleaning residue testing—to demonstrate consistency per ASTM D4488 or internal SOPs aligned with ISO 13485 or GLP principles.

Software & Data Management

The SK1200G operates via embedded firmware with no external software interface or data logging capability. All parameters—including timer setting, power activation, and degassing initiation—are controlled locally through tactile membrane buttons and visual LED indicators. For laboratories requiring audit trails or electronic records, integration with external environmental monitoring systems (e.g., via RS-232 or analog signal output) is not supported. However, the unit’s deterministic behavior—fixed frequency, constant power output, and repeatable timing—enables manual documentation compliant with FDA 21 CFR Part 11 when paired with standardized logbooks or LIMS entries referencing batch number, operator ID, and cycle duration.

Applications

• Routine decontamination of analytical glassware prior to HPLC, GC, or spectrophotometric analysis to minimize carryover artifacts.
• Preparation of sample holders and calibration standards in metrology and materials characterization labs.
• Cleaning of reusable surgical instruments in veterinary or teaching hospital settings where terminal sterilization follows ultrasonic pretreatment.
• Removal of flux residues from printed circuit board (PCB) prototypes during electronics prototyping workflows.
• Supporting ASTM E1970 and ISO 14971 risk management processes by reducing variability introduced by manually scrubbed surfaces.

FAQ

Does the SK1200G include heating functionality?
No. This model operates at ambient temperature only and does not incorporate a heating element or temperature control system.
Can it be used with flammable solvents?
No. The unit is rated for aqueous and water-miscible solutions only. Use with flammable, volatile, or chlorinated solvents poses fire and inhalation hazards and voids warranty.
Is the degassing cycle programmable separately from the main cleaning timer?
Yes. The degassing function activates automatically for a fixed 3-minute interval before initiating the user-defined cleaning duration.
What maintenance is required for long-term reliability?
Regular inspection of the tank seal integrity, periodic descaling with dilute citric acid (if hard water is used), and verification of transducer coupling integrity every 6 months are recommended.
Does it meet any ISO or ASTM cleaning validation standards out-of-the-box?
No. Validation must be performed by the end user according to application-specific acceptance criteria; the device provides consistent physical parameters but no built-in qualification documentation.