KUDOS SK250H Benchtop High-Frequency Ultrasonic Cleaner

Overview

The KUDOS SK250H is a benchtop high-frequency ultrasonic cleaner engineered for precision cleaning, degassing, dispersion, emulsification, and accelerated extraction in academic, pharmaceutical, and industrial laboratory environments. Operating at a fixed frequency of 53 kHz, the unit leverages piezoelectric transducer technology to generate controlled cavitation within aqueous or compatible solvent media. This frequency balances penetration depth and micro-cavitation intensity—making it particularly effective for removing sub-micron particulates, organic residues, and thin oxide layers from delicate substrates such as optical lenses, semiconductor wafers, microfluidic devices, and analytical sample vials. Unlike lower-frequency cleaners (<40 kHz), the 53 kHz output minimizes surface pitting on soft metals and polymer components while maintaining sufficient energy density for robust contaminant removal. The device complies with IEC 61000-6-3 (EMC emission standards) and incorporates thermal cutoff protection to prevent transducer overheating during extended operation.

Key Features

• Stable 53 kHz ultrasonic generation via high-efficiency ceramic transducers bonded to the tank bottom—ensuring uniform acoustic field distribution across the full 10 L working volume.
• Digital timer with extended range (1–199 minutes), enabling precise process repeatability for validated cleaning protocols in GLP and GMP settings.
• 304 stainless steel tank (300 × 240 × 150 mm internal) with electropolished interior surface to resist corrosion and facilitate residue-free rinsing.
• Integrated drain valve and flexible PVC drain hose for rapid, spill-free tank evacuation—critical for solvent recovery or multi-step cleaning sequences involving rinse/dry cycles.
• Built-in support rack with adjustable height positioning, allowing vertical or horizontal orientation of samples without direct contact with tank walls—reducing shadowing effects and improving cleaning uniformity.
• Front-panel LED display with backlight illumination ensures legibility under low-light hood or darkroom conditions; all controls are tactile and non-mechanical for long-term reliability.

Sample Compatibility & Compliance

The SK250H accommodates a broad range of sample geometries—including Petri dishes, chromatography vials, syringe filters, surgical instruments, printed circuit boards, and MEMS components—within its open-top tank configuration. It supports aqueous solutions, ethanol, isopropanol, acetone, and other low-viscosity, non-halogenated solvents commonly used in lab-scale decontamination. While not rated for explosive atmospheres (ATEX) or Class I Division 1 environments, the unit meets general-purpose electrical safety requirements per GB 4706.1 (equivalent to IEC 60335-1). For regulated applications, the timer function supports documentation of exposure duration—a prerequisite for audit trails under ISO 13485 (medical device manufacturing) and ASTM D2603 (ultrasonic cleaning validation guidelines).

Software & Data Management

The SK250H operates as a standalone hardware platform without embedded software or network connectivity. All operational parameters are set manually via front-panel controls, eliminating firmware dependencies and cybersecurity concerns associated with IoT-enabled instruments. Time-stamped cleaning logs must be maintained externally (e.g., in electronic lab notebooks or LIMS systems) when used in FDA-regulated workflows. The absence of data export interfaces aligns with laboratories prioritizing simplicity, regulatory transparency, and reduced validation burden—particularly where 21 CFR Part 11 compliance is achieved through procedural controls rather than electronic signature functionality.

Applications

• Pre-analytical sample preparation: Removal of adsorbed proteins and lipids from HPLC vials and autosampler needles to prevent carryover contamination.
• Microelectronics: Cleaning photomasks, bond pads, and flip-chip substrates prior to wire bonding or encapsulation.
• Materials science: Debubbling resin mixtures before casting composites or preparing TEM grid coatings.
• Pharmaceutical QC: Degassing mobile phase solvents to stabilize baseline noise in UV-Vis and fluorescence detection systems.
• Biotechnology: Disaggregating cell pellets post-centrifugation and assisting in nucleic acid isolation from tissue homogenates.
• Quality assurance labs: Validated cleaning of reference standards, calibration weights, and gauge blocks per ISO 5725 repeatability criteria.

FAQ

Is the SK250H suitable for cleaning delicate glassware such as volumetric flasks and burettes?
Yes—the 53 kHz frequency and adjustable timer allow gentle yet effective removal of dried titrant residues without compromising dimensional accuracy or meniscus clarity.
Can this unit be operated continuously for more than two hours?
Continuous operation beyond 120 minutes is not recommended without 30-minute cooling intervals; prolonged duty cycles may reduce transducer lifespan and compromise thermal stability.
Does the unit include temperature control or heating capability?
No—the SK250H is a non-heated ultrasonic cleaner. For thermally assisted cleaning, external water baths or heated cleaning tanks must be used in conjunction.
What maintenance is required for long-term reliability?
Routine cleaning of the tank interior with mild detergent, inspection of the drain valve seal integrity, and periodic verification of transducer adhesion using impedance testing (recommended annually in high-use facilities).
Is the drain hose compatible with standard laboratory floor drain fittings?
The included 1.2 m PVC drain hose features a 10 mm inner diameter and terminates in a molded barbed connector—adaptable to common ½-inch NPT or push-fit lab drain assemblies using optional reducers.