Supmile KQ-400GKDV Benchtop Temperature-Controlled Ultrasonic Cleaner

Overview

The Supmile KQ-400GKDV is a benchtop temperature-controlled ultrasonic cleaner engineered for laboratories requiring precise thermal stability during sonication. Unlike conventional ultrasonic cleaners that only heat the cleaning bath, the KQ-400GKDV integrates a closed-cycle, non-chlorofluorocarbon (non-CFC) refrigeration system with independent heating and cooling modules. This dual-temperature control architecture enables active regulation of bath temperature within ±0.5 °C across the full 0–80 °C range—critical for applications where thermal drift compromises reproducibility, such as phytochemical extraction, polymer dissolution, or enzyme-sensitive sample preparation. The unit operates at a fixed frequency of 40 kHz, optimized for broad-spectrum cavitation efficiency in aqueous and mild solvent-based media. Its 13-liter stainless steel tank (300 × 240 × 180 mm internal) supports consistent energy distribution and accommodates standard laboratory glassware, filtration assemblies, and small instrumentation components.

Key Features

• Integrated thermoregulation system: Simultaneous Peltier-assisted cooling and resistive heating maintain stable bath temperature without external chillers or ice baths.
• Digital programmable controller: Full numeric interface for independent setting of ultrasonic power (40–100% of 400 W), temperature (0–80 °C), and timer (1–480 min), with real-time display of actual bath temperature and elapsed time.
• Acoustically optimized stainless steel construction: 304-grade tank, basket, lid, and housing ensure corrosion resistance, structural rigidity, and long-term dimensional stability under thermal cycling.
• Active noise suppression: Hinged, insulated sound-dampening lid reduces airborne noise to ≤55 dB(A) at 1 m distance, meeting ISO 7779 requirements for laboratory acoustic environments.
• Automated fluid management: Electrically actuated inlet and outlet valves enable repeatable fill/drain cycles; water level is adjustable between 80–130 mm to optimize cavitation zone depth for varied load geometries.
• Thermal insulation layer: Vacuum-sealed perimeter insulation minimizes heat loss and condensation, improving energy efficiency and operator safety during extended operation.

Sample Compatibility & Compliance

The KQ-400GKDV is validated for use with aqueous solutions, ethanol/water mixtures, isopropanol, and low-viscosity organic solvents compatible with 304 stainless steel. It complies with IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity to electrostatic discharge and RF fields). While not certified to GLP or GMP standards out-of-the-box, its digital parameter logging, non-volatile memory for up to 10 user-defined protocols, and tamper-resistant settings support audit-ready workflows when integrated into SOP-driven environments. Temperature calibration traceability follows ISO/IEC 17025 guidelines using NIST-traceable RTD sensors embedded in the tank wall.

Software & Data Management

The device features embedded firmware with non-volatile memory storing operational history—including date/time stamps, setpoints, and cycle completion status—for up to 1,000 runs. No proprietary software or PC connection is required for basic operation; however, optional RS-232 or USB-to-serial adapters enable integration with LabVantage, Empower, or custom SCADA systems for centralized monitoring. All parameter changes are logged with timestamp and user ID (when configured via external authentication), satisfying FDA 21 CFR Part 11 requirements for electronic records when paired with appropriate access controls and audit trail validation.

Applications

• Phytochemical extraction: Controlled-temperature sonication of botanical matrices (e.g., ginseng, turmeric) to enhance yield while preserving thermolabile compounds.
• Surface preparation: Removal of organic residues from silicon wafers, optical lenses, and MEMS devices prior to coating or metrology.
• Pharmaceutical QC: Cleaning of HPLC vial inserts, filter housings, and dissolution apparatus parts without thermal degradation of residual analytes.
• Nanomaterial processing: Dispersion of carbon nanotubes and metal oxide nanoparticles in aqueous suspensions under isothermal conditions to prevent agglomeration.
• Biomedical device reprocessing: Decontamination of reusable surgical instruments and endoscopic components per AAMI ST33 and ISO 15883-1 guidelines (when used with validated detergents).

FAQ

Does the KQ-400GKDV support continuous operation at elevated temperatures?
Yes—the integrated refrigeration system allows uninterrupted operation at any setpoint between 0 °C and 80 °C, including prolonged runs at 60–70 °C, provided ambient room temperature remains below 30 °C and ventilation clearance exceeds 10 cm on all sides.
Can the ultrasonic frequency be changed?
No—the transducer array is fixed at 40 kHz, selected for optimal balance of penetration depth and cavitation intensity in mid-volume tanks. Frequency modulation is not supported.
Is the stainless steel tank electropolished?
The tank interior features mechanical polishing (Ra ≤ 0.8 µm) but not electropolishing; this meets ASTM A967 for passivation of austenitic stainless steels and ensures compatibility with USP cleanroom cleaning protocols.
What maintenance is required for the refrigeration system?
The sealed compressor requires no scheduled lubrication or refrigerant replenishment over its rated service life of ≥20,000 hours; periodic inspection of condensate drain lines and air intake filters is recommended every 6 months.
Can the unit be rack-mounted or installed in a fume hood?
It is designed exclusively for benchtop use. Installation inside a fume hood is not advised due to restricted airflow affecting thermal management and potential condensation on electrical components.