Supmile KQ-1500DE Floor-Standing Digital Ultrasonic Cleaner

Overview

The Supmile KQ-1500DE is a floor-standing, digitally controlled ultrasonic cleaner engineered for high-reliability cleaning of large-volume or bulky components in industrial QA/QC laboratories, R&D facilities, and precision manufacturing environments. It operates on the principle of cavitation—generating high-frequency (40 kHz) acoustic pressure waves in aqueous or solvent-based media to produce microbubbles that collapse with localized energy release, effectively dislodging particulate contaminants, oils, oxides, and biofilms from complex geometries. Unlike benchtop units, its 112-liter tank volume and reinforced structural design support consistent energy distribution across large loads, minimizing standing-wave interference and ensuring uniform cleaning intensity throughout the bath. The integrated automatic frequency sweeping circuit dynamically adjusts the driving signal within a narrow band around 40 kHz to maintain optimal transducer resonance under varying load and solution conditions—thereby improving electroacoustic conversion efficiency and reducing reactive power loss. This feature enhances reproducibility across repeated cleaning cycles, a critical requirement for method validation under GLP and ISO 13485-aligned workflows.

Key Features

• Floor-standing architecture with ergonomic height (800 mm working height) and stable base (900 × 650 mm footprint) for integration into production-line or central lab settings.
• Digital microcontroller-based interface with backlit LCD display showing real-time parameters: bath temperature, elapsed/remaining time, ultrasonic power setting (%), liquid level (1–300 mm), and fault status codes.
• Adjustable ultrasonic output (40–100% of 1000 W nominal) enables optimization for delicate substrates (e.g., optical lenses, semiconductor wafers) or heavily soiled parts (e.g., engine components, surgical instruments).
• Precise thermostatic control (±1 °C accuracy) over 10–80 °C range, powered by a 6000 W immersed heating system with PID regulation and thermal cut-off protection.
• Integrated safety logic monitors voltage, current, temperature, and liquid level continuously; halts operation automatically upon detection of dry-run, over-temperature (>85 °C), or low-level condition (<10 mm).
• Sound-dampening lid constructed from multi-layer stainless steel (304) with thermal insulation minimizes airborne noise (<65 dB(A) at 1 m) and reduces heat loss during heated cycles.
• All wetted surfaces—including tank, basket, lid, and drain assembly—fabricated from AISI 304 stainless steel for corrosion resistance against alkaline detergents, mild solvents, and deionized water.

Sample Compatibility & Compliance

The KQ-1500DE accommodates a broad range of sample types: metal machined parts (aluminum, stainless steel, titanium), glassware (volumetric flasks, reaction vessels), ceramic substrates, printed circuit boards (PCBs), medical devices (endoscopes, laparoscopic tools), and laboratory consumables (filter housings, chromatography columns). Its cleaning performance is compatible with ASTM D2602 (Standard Test Method for Ultrasonic Cleaning of Metals), ISO 16232 (Road Vehicles – Cleanliness of Components of Fluid Circuits), and USP particulate matter testing preparation protocols. While not certified for Class A sterilization, it supports pre-sterilization cleaning validated under FDA 21 CFR Part 820 and ISO 13485 quality systems. The unit complies with IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity requirements), and meets CE marking directives for machinery safety (2006/42/EC) and low-voltage equipment (2014/35/EU).

Software & Data Management

The KQ-1500DE does not include PC connectivity or proprietary software but provides full local data traceability through its embedded non-volatile memory. All operational events—including cumulative runtime, total number of cycles executed, date of manufacture, and historical fault logs—are retained without battery backup. Time, temperature, and power settings are digitally stored and recalled between sessions, supporting repeatable method execution per SOP documentation. For regulated environments, users may integrate external data loggers (via RS-232 or analog 4–20 mA outputs, optional) to capture timestamped process variables for audit trails compliant with FDA 21 CFR Part 11 Annex 11 requirements. Calibration records for temperature and timer functions can be maintained manually using NIST-traceable references.

Applications

• Pre-assembly cleaning of aerospace turbine blades and fuel system components prior to non-destructive testing (NDT).
• Removal of polishing compounds and grinding residues from precision optics and metrology standards.
• Decontamination of reusable surgical instruments in hospital central sterile supply departments (CSSD).
• Extraction support for environmental sample preparation (e.g., PCBs from soil matrices, pesticide residues from plant tissue).
• Dispersion of nanomaterials (e.g., graphene oxide, TiO₂ nanoparticles) in aqueous suspensions for colloid stability studies.
• Cell lysis and protein extraction in molecular biology workflows where mechanical shear must be minimized relative to sonication duration.
• Ultrasonic-assisted degassing of resins and adhesives prior to vacuum casting or coating applications.

FAQ

Is the KQ-1500DE suitable for use with flammable solvents?
No. This unit is designed exclusively for aqueous solutions and non-flammable, low-volatility cleaning agents. Use with acetone, ethanol, or chlorinated solvents requires explosion-proof certification not provided by this model.
Can the ultrasonic frequency be changed to 28 kHz or 60 kHz?
No. The transducer array is fixed at 40 kHz. Alternate frequencies require hardware redesign and are available only in dedicated models (e.g., KQ-1500D28, KQ-1500D60) subject to factory order.
What is the maximum recommended operating temperature for continuous duty?
75 °C for extended periods (>2 hours); prolonged operation above 80 °C risks accelerated seal degradation and reduced transducer lifespan.
Does the unit include a filtration system for solvent recirculation?
No. The KQ-1500DE features manual inlet/drain only. Solvent filtration capability is available in the AS-series variants (e.g., KQ-AS1500DE), which integrate a dual-stage particulate filter and activated carbon cartridge.
How often should the tank be descaled, and what agent is recommended?
Descaling is advised every 200–300 operating hours when using hard water. Use 5–10% citric acid solution at 50 °C for 60 minutes, followed by thorough rinsing with deionized water.