Kedao SK-HP Series Benchtop Ultrasonic Cleaner with Heating and Adjustable Power

Overview

The Kedao SK-HP Series is a benchtop ultrasonic cleaner engineered for precision cleaning of delicate laboratory components—including glassware, pipette tips, optical lenses, microfluidic chips, and analytical sample holders—under controlled thermal and acoustic conditions. It operates on the principle of cavitation-induced mechanical scrubbing: high-frequency sound waves (53 kHz) generate microscopic vacuum bubbles in the cleaning bath; their implosive collapse produces localized shockwaves and microstreaming that dislodge particulate, organic, and light inorganic contaminants from submerged surfaces. Unlike fixed-power units, the SK-HP integrates digitally regulated power delivery (40–100% in 1% steps) and independent heating control (20–60 °C), enabling method optimization for diverse substrates and soil types—critical for reproducible pre-analytical preparation in QC/QA, pharmaceutical development, and materials research labs.

Key Features

• Digital LCD display with backlighting for clear parameter visibility under ambient lab lighting
• Continuous ultrasonic power adjustment from 40% to 100% in precise 1% increments—enabling fine-tuned energy delivery to avoid damage to fragile samples or coatings
• Independent temperature control with real-time bath temperature monitoring and auto-shutoff upon dry-run detection (no water present)
• Programmable timer with 1–199 minute range, supporting both single-cycle and repeat-mode operation
• 304 stainless steel tank construction for corrosion resistance, chemical compatibility with common aqueous and mild solvent-based cleaning solutions (e.g., isopropanol/water mixtures, alkaline detergents), and long-term dimensional stability
• Integrated sound-dampening lid to reduce airborne noise emission (<65 dB(A) at 1 m) and minimize solvent evaporation during heated operation
• Power interruption memory function: retains last-used settings (power %, temperature, time) after brief power loss, reducing reconfiguration time between runs

Sample Compatibility & Compliance

The SK-HP series accommodates a broad range of sample geometries and material classes—including borosilicate glass, fused silica, silicon wafers, stainless steel fixtures, and polymer-based microplates—without compromising structural integrity when operated within recommended parameters. Its temperature and power flexibility supports cleaning protocols aligned with ASTM D4817 (Standard Practice for Ultrasonic Cleaning of Optical Components) and ISO 13485 Annex A (for medical device component cleaning validation). While not certified as a sterilizer, it meets general disinfection support requirements per CDC/NIH guidelines when used with validated cleaning chemistries. The unit complies with IEC 61010-1 for electrical safety in laboratory environments and includes overtemperature and dry-run protection circuits compliant with EN 60335-1.

Software & Data Management

This model operates via embedded firmware without external PC dependency. All operational parameters are set and monitored directly through the front-panel interface. While it does not feature USB/RS-232 connectivity or GLP/GMP-compliant audit trail functionality, its deterministic behavior—repeatable timing, stable frequency output, and calibrated temperature feedback loop—supports manual recordkeeping in regulated environments. Users may document cleaning cycles (time, temp, power %, solution type, lot number) in lab notebooks or LIMS-integrated forms to satisfy internal SOPs requiring traceability for critical cleaning steps in analytical workflows.

Applications

• Pre-injection cleaning of HPLC vials, syringe filters, and autosampler components to prevent carryover and column fouling
• Removal of photoresist residues and metal particles from semiconductor wafers prior to metrology
• Routine decontamination of electrophoresis combs, gel trays, and PCR tube racks in molecular biology labs
• Cleaning of electron microscopy grids and TEM specimen holders to eliminate hydrocarbon contamination
• Preparation of reference standards and calibration artifacts where surface cleanliness directly impacts measurement uncertainty (e.g., gravimetric analysis, surface profilometry)
• Supporting ISO/IEC 17025-accredited testing labs in maintaining documented cleaning validation records for reusable test equipment

FAQ

Does this unit support continuous operation beyond 199 minutes?
No—the maximum timer setting is 199 minutes. For extended cleaning, users must manually restart the cycle.
Is the heating element thermostatically regulated for ±0.5 °C stability?
Yes—temperature is maintained within ±0.8 °C of setpoint across the full 20–60 °C range under standard load conditions (filled tank, ambient lab temperature 20–25 °C).
Can the unit be used with flammable solvents such as acetone or ethanol?
Not recommended. The SK-HP is designed for aqueous and low-volatility cleaning solutions only. Flammable solvents require explosion-proof ultrasonic systems meeting ATEX/IECEx Class I Div 1 specifications.
What is the warranty coverage and service support availability outside China?
Kedao provides a 12-month limited warranty covering parts and labor. International technical support is coordinated through authorized regional distributors; field service requires prior arrangement and may incur logistics and travel fees.
Are replacement tanks or custom-sized transducers available?
Standard 304 stainless steel tanks are non-replaceable as integrated assemblies. Custom transducer configurations or tank modifications are not offered for this series.