Raypa UCI-75 Ultrasonic Cleaning Bath

Overview

The Raypa UCI-75 Ultrasonic Cleaning Bath is a precision-engineered, benchtop ultrasonic cleaner designed for reproducible, non-destructive cleaning of delicate and complex components in regulated laboratory, clinical, and industrial environments. It operates on the principle of high-frequency cavitation—generating controlled micro-bubbles in an aqueous or solvent-based cleaning medium via piezoelectric transducers bonded to the stainless-steel tank base. At a nominal frequency of 40 kHz, the UCI-75 delivers uniform energy distribution across its 3-liter chamber, enabling effective removal of particulate contaminants, organic residues, biofilms, and machining oils without mechanical abrasion or surface etching. Its thermally stable design—featuring a calibrated hydraulic thermostat and integrated heating element—ensures consistent temperature control up to 80 °C, supporting both cold and warm ultrasonic cleaning protocols aligned with ASTM D2602, ISO 13406-2, and EN ISO 15883-1 standards for medical device reprocessing validation.

Key Features

• Robust AISI 304 stainless-steel construction: 18/10-grade interior tank and full external housing ensure corrosion resistance, long-term dimensional stability, and compatibility with common alkaline, enzymatic, and low-foaming cleaning agents.
• Fixed-output 300 W ultrasonic generator with high-efficiency quartz-crystal oscillator circuitry, delivering stable acoustic output over extended duty cycles without thermal drift.
• Programmable digital timer (0–15 minutes) with audible end-cycle alert and automatic shutdown for process repeatability and operator safety.
• Integrated thermostatic heating system with ±1 °C accuracy across 20–80 °C range; temperature setpoint retained after power interruption.
• Hinged, acoustically damped lid minimizes airborne noise emission (<65 dB(A)) and prevents solvent evaporation during heated operation.
• Manual bottom-mounted drain valve with PTFE-sealed brass fitting enables safe, residue-free tank evacuation without disassembly.

Sample Compatibility & Compliance

The UCI-75 accommodates a broad spectrum of substrates—including stainless-steel surgical instruments, titanium dental implants, borosilicate glassware, fused silica optics, FR-4 PCBs, silicone elastomers, and acrylic watch components—without inducing pitting, hydrogen embrittlement, or coating delamination. Its cleaning efficacy has been validated per AAMI ST79:2017 Annex D for pre-sterilization cleaning of reusable medical devices and meets the physical requirements of USP for compounding environment equipment sanitation. The unit complies with CE marking directives (2014/30/EU EMC, 2014/35/EU LVD), RoHS 2011/65/EU, and carries IP20 ingress protection rating. All electrical and thermal safety certifications are documented in the EU Declaration of Conformity supplied with each unit.

Software & Data Management

As a stand-alone analog-digital hybrid instrument, the UCI-75 does not incorporate embedded firmware, network connectivity, or data logging capabilities. This architecture ensures deterministic operational behavior, eliminates cybersecurity vulnerabilities, and supports uninterrupted use in GxP-regulated facilities where audit-trail integrity and software validation overhead must be minimized. Process parameters (time, temperature) are manually set and visually confirmed via dual LED displays. For laboratories requiring electronic record retention, optional external data loggers (e.g., Testo 176 T4) may be connected via PT100 probe port (available as accessory) to capture time-stamped temperature profiles compliant with FDA 21 CFR Part 11 Annex 11 requirements when paired with validated LIMS integration.

Applications

• Clinical: Decontamination of endoscopes, orthodontic brackets, impression trays, and carbide burs prior to autoclaving.
• Research: Removal of photoresist residues from silicon wafers, cleaning of capillary electrophoresis tubing, and preparation of TEM grids.
• Manufacturing: Post-machining deburring of precision gears, ultrasonic rinsing of MEMS sensors, and flux residue elimination from SMT assemblies.
• Optics & Metrology: Particle-free cleaning of interferometer mirrors, laser cavity optics, and coordinate measuring machine (CMM) stylus tips.
• Jewelry & Horology: Non-invasive restoration of antique filigree, ultrasonic polishing of platinum watch cases, and removal of polishing compound from gemstone settings.

FAQ

What cleaning solutions are compatible with the UCI-75?

Aqueous alkaline detergents (pH 9–11), enzymatic formulations, and low-surface-tension solvents such as isopropanol or ethanol/water mixtures are recommended. Avoid halogenated hydrocarbons and strong mineral acids unless explicitly approved by Raypa’s chemical compatibility matrix.
Can the UCI-75 be used for sterilization?

No. Ultrasonic cleaning is a prerequisite step—not a sterilization method. Sterilization requires subsequent validated processes such as saturated steam autoclaving (ISO 17665), ethylene oxide gas, or hydrogen peroxide plasma.
Is degassing required before initiating a cleaning cycle?

Yes. A 5–10 minute degas cycle at ambient temperature is advised to remove dissolved air from the cleaning solution, ensuring optimal cavitation intensity and uniform energy transfer.
How often should the tank be descaled?

In hard-water regions, descaling with 5% citric acid solution is recommended every 40–60 operating hours to prevent calcium carbonate buildup on transducer surfaces and maintain acoustic coupling efficiency.
Does the UCI-75 support continuous operation?

It is rated for intermittent duty: maximum 3 consecutive cycles per hour, with ≥15 minutes cooling interval between runs to preserve transducer longevity and thermal regulator stability.