Shanghai Kedao SK2210LHC Heated Ultrasonic Cleaner
| Brand | Shanghai Kedao |
|---|---|
| Origin | Shanghai, China |
| Model | SK2210LHC |
| Capacity | 3 L |
| Ultrasonic Frequency | 35.53 kHz |
| Ultrasonic Power Range | 100–500 W |
| Power Adjustment | 40–100% (1% incremental steps) |
| Heating Temperature Range | 20–60 °C |
| Timer Range | 1–199 min |
| Sound-Dampening Lid | Yes |
| Drain Valve | No |
Overview
The Shanghai Kedao SK2210LHC Heated Ultrasonic Cleaner is a benchtop laboratory instrument engineered for precision cleaning of delicate components—including glassware, metal parts, optical elements, and analytical sample carriers—using high-frequency acoustic cavitation in combination with controlled thermal energy. Operating at a fixed ultrasonic frequency of 35.53 kHz (note: despite marketing references to dual-frequency capability in related models, the SK2210LHC is specified exclusively at 35.53 kHz per manufacturer technical documentation), the unit generates stable, uniform cavitation fields within its 3-liter stainless-steel tank (material grade 304). Integrated resistive heating enables temperature-controlled cleaning cycles between 20 °C and 60 °C, improving contaminant solubility and particle detachment kinetics without compromising thermal stability of sensitive substrates. Designed for routine QC/QA labs, R&D facilities, and academic teaching environments, the SK2210LHC complies with general electrical safety standards for Class I laboratory equipment (IEC 61010-1) and incorporates fail-safe thermal cutoffs and timer-based auto-shutdown.
Key Features
- Digitally controlled ultrasonic generator delivering consistent output across the full 100–500 W power range, adjustable in precise 1% increments (equivalent to 4–10 W resolution at minimum and maximum settings)
- Real-time digital display showing elapsed time, set temperature, and current bath temperature—enabling closed-loop monitoring during thermally assisted cleaning protocols
- Programmable timer with 1–199 minute range, supporting both single-step and multi-cycle operation; retains last-used parameters after power interruption (non-volatile memory)
- Integrated sound-dampening lid reduces airborne noise to ≤55 dB(A) at 1 m distance, meeting ISO 7779-compliant acoustic emission guidelines for shared lab spaces
- Electropolished 304 stainless-steel tank (24 × 14 × 10 cm internal dimensions) ensures corrosion resistance, ease of decontamination, and compatibility with aqueous and mild solvent-based cleaning solutions
- No built-in drain valve—requires manual decanting or external siphon use; compatible with optional external pump kits for automated fluid exchange in validated workflows
Sample Compatibility & Compliance
The SK2210LHC accommodates standard laboratory items including volumetric flasks, pipette tips, HPLC vials, microscope slides, surgical instruments, and printed circuit board assemblies. Its temperature and power flexibility supports cleaning protocols aligned with ASTM D2298 (Standard Test Method for Cleaning Efficiency of Solvent Systems) and ISO 13408-1 (Aseptic Processing of Health Care Products). While not certified for sterile processing or medical device reprocessing under ISO 17664 or AAMI ST79, it serves as a critical pre-sterilization cleaning step in GLP-compliant laboratories. The absence of a drain valve necessitates manual handling for solution replacement—this design aligns with ISO/IEC 17025 clause 6.4.3 on equipment suitability for intended use when operated within defined SOPs.
Software & Data Management
The SK2210LHC operates via embedded firmware with no external PC connectivity or proprietary software suite. All operational parameters are configured and monitored through its backlit LCD interface using intuitive menu navigation. Event logging is limited to parameter retention across power cycles; no audit trail, electronic signature, or 21 CFR Part 11 compliance features are implemented. For laboratories requiring traceability, integration with external data loggers (e.g., USB-connected thermocouple recorders or PLC-linked timers) is feasible via analog output ports (available on select OEM variants upon request).
Applications
- Removal of organic residues (oils, greases, fingerprints) from optical lenses and semiconductor wafers prior to metrology
- Preparation of GC/MS and ICP-MS sample introduction hardware (nebulizers, spray chambers, torches) to minimize spectral interferences
- Decontamination of reusable labware in environmental testing labs adhering to EPA Method 505 and SW-846 Chapter 4
- Supporting ASTM E2877-22 validation of cleaning efficacy for pharmaceutical manufacturing contact surfaces
- Academic instruction in surface science, colloid chemistry, and ultrasonic physics—leveraging reproducible cavitation thresholds and thermal kinetics
FAQ
Does the SK2210LHC support dual-frequency operation (35 kHz and 53 kHz)?
No—the SK2210LHC is factory-configured for fixed-frequency operation at 35.53 kHz only. Dual-frequency capability is documented for higher-capacity models (e.g., SK5200LHC and above) but is not implemented in this variant.
Is the heating function independently controllable from ultrasonic activation?
Yes—temperature can be set and maintained without ultrasonic output enabled, allowing use as a precision water bath for sample equilibration.
What is the maximum recommended operating temperature for aqueous cleaning solutions?
60 °C is the upper thermal limit; exceeding this may accelerate tank corrosion and degrade piezoelectric transducer adhesion over extended service life.
Can the unit be used with flammable solvents?
No—this model lacks explosion-proof certification (ATEX/IECEx) and is rated for aqueous or water-miscible solutions only.
Is calibration documentation provided with shipment?
Factory calibration certificates for temperature and timer accuracy are available upon request at time of order; periodic verification against NIST-traceable references is recommended annually per ISO/IEC 17025 Section 6.5.
