KUDOS SK-18E Heavy-Duty Floor-Standing LED Ultrasonic Cleaner

Overview

The KUDOS SK-18E is a heavy-duty, floor-standing ultrasonic cleaner engineered for laboratories, quality control facilities, and industrial maintenance environments requiring reliable, high-energy cleaning of large or high-volume components. It operates on the principle of cavitation—generating microscopic vacuum bubbles in a liquid medium (typically aqueous or solvent-based cleaning solutions) via high-frequency mechanical vibrations at 25 kHz. These collapsing bubbles produce localized shockwaves and micro-jets that effectively dislodge particulate contaminants, oils, oxides, and biofilms from complex geometries—including blind holes, threaded surfaces, and porous substrates—without mechanical abrasion. With a 54 L stainless steel tank constructed from corrosion-resistant 304 grade steel and 18 strategically mounted piezoelectric transducers, the SK-18E delivers uniform energy distribution across the entire bath volume, minimizing dead zones and ensuring reproducible cleaning efficacy under controlled thermal and temporal parameters.

Key Features

• High-power ultrasonic output (750 W total) optimized for demanding cleaning tasks involving large tools, engine parts, optical assemblies, or batches of surgical instruments.
• Fine-grained power modulation: continuous 1% incremental adjustment from 40% to 100% rated power, enabling precise energy delivery tailored to substrate sensitivity and soil type.
• Digital LED interface with intuitive controls for time (1–199 minutes), temperature (20–60 °C), and power level—each parameter independently set and retained between cycles.
• Integrated drain valve positioned at the lowest point of the tank for rapid, residue-free solution exchange—critical for multi-step cleaning protocols or solvent recovery workflows.
• Rugged floor-standing chassis with reinforced structural framing and non-slip leveling feet; designed for stable operation during extended duty cycles in shared lab or production-floor environments.
• Compliance-ready design: All electrical components meet IEC 61000-6-3 (EMC emission) and IEC 61000-6-2 (immunity) standards; housing conforms to IP20 ingress protection classification.

Sample Compatibility & Compliance

The SK-18E accommodates a broad range of sample types—from single large components (e.g., heat exchanger plates, turbine blades, or printed circuit board assemblies) up to hundreds of small parts (e.g., watch components, dental burs, or microfluidic chips) placed in compatible wire baskets or perforated trays. Its 25 kHz operating frequency balances penetration depth and surface agitation, making it suitable for both robust metal parts and moderately delicate ceramics or anodized aluminum. While not certified for sterile processing per ISO 13485 or FDA 21 CFR Part 820, the unit supports GLP-compliant documentation when paired with external logging systems. Cleaning validation studies may reference ASTM D2291 (standard practice for ultrasonic cleaning of metals) and ISO 13093-1 (ultrasonic cleaning performance testing methods). The 304 stainless steel tank resists chloride-induced pitting and is compatible with common alkaline, neutral, and low-concentration acidic cleaning chemistries.

Software & Data Management

The SK-18E operates as a standalone instrument with no embedded software or network connectivity. All operational parameters are configured and monitored via its front-panel digital LED display and tactile membrane keypad. For laboratories requiring audit trails or process documentation, integration with external data loggers (e.g., USB-connected thermocouple/relay modules) or facility-wide SCADA systems is supported through analog voltage outputs (0–5 V DC) for real-time temperature and timer status signals. While the unit does not natively support FDA 21 CFR Part 11 electronic signatures or user-level access control, its deterministic, repeatable control logic enables full traceability when used within documented SOPs—particularly where manual entry of cycle parameters into LIMS or ELN platforms is standard practice.

Applications

• Precision cleaning of metrology fixtures, CMM probes, and calibration standards prior to dimensional inspection.
• Removal of cutting fluids, grinding swarf, and EDM residues from aerospace and automotive machining components.
• Pre-sterilization preparation of reusable medical devices in hospital central supply departments (CSDs), aligned with AAMI ST79 guidelines for ultrasonic pretreatment.
• Decontamination of glassware, ceramic crucibles, and quartz sample holders in analytical chemistry and materials science labs.
• Supporting failure analysis workflows by cleaning fracture surfaces or cross-sectioned samples prior to SEM/EDS examination.
• Batch cleaning of additive-manufactured metal parts to eliminate residual powder and support structures before post-processing heat treatment.

FAQ

Is the SK-18E suitable for cleaning delicate optics or MEMS devices?
While the 25 kHz frequency provides strong cleaning action, it is generally not recommended for uncoated lenses, thin-film sensors, or unreinforced silicon wafers without prior validation. Lower-frequency units (e.g., 40 kHz or higher) are typically preferred for such applications.
Can the unit be operated continuously for more than 199 minutes?
No—the maximum programmable timer duration is 199 minutes. For extended cleaning, users must manually restart the cycle or implement external relay-based timing control.
Does the SK-18E include degassing functionality?
It does not feature automatic degassing mode; however, the 25 kHz frequency inherently promotes efficient air removal from solutions during initial fill, especially when combined with the recommended 5–10 minute pre-heating period at 40 °C.
What maintenance is required for long-term reliability?
Routine inspection of transducer adhesion integrity, periodic descaling of the tank interior using citric acid solution, and verification of drain valve sealing performance every 6 months are advised.
Is the unit compatible with flammable solvents?
No—this model is rated for aqueous and water-miscible solutions only. Use of flammable solvents requires explosion-proof certification (ATEX/IECEx), which the SK-18E does not possess.