Shumei KQ-50TDE Desktop High-Frequency Digital Ultrasonic Cleaner

Overview

The Shumei KQ-50TDE is a compact, high-frequency digital ultrasonic cleaner engineered for precision laboratory cleaning, degassing, and sample preparation tasks requiring exceptional reproducibility and process control. Unlike conventional low- or medium-frequency ultrasonic systems (typically 25–40 kHz), the KQ-50TDE operates at a fixed 80 kHz frequency—optimized for fine particulate removal, microbubble-mediated cavitation, and reduced surface erosion on delicate substrates such as optical lenses, MEMS components, semiconductor wafers, and biological tissue samples. Its integrated transducer design eliminates coupling losses associated with external generator–transducer configurations, ensuring stable acoustic energy delivery into the cleaning bath. The unit complies with IEC 61000-6-3 (EMC emission standards) and meets structural safety requirements per IEC 61010-1 for laboratory electrical equipment. Designed for continuous operation in ISO Class 5–7 cleanroom-adjacent environments, it supports GLP-compliant documentation through its embedded time-stamped operational logging.

Key Features

• High-resolution 80 kHz piezoelectric transduction system delivering uniform cavitation field across the entire 2 L tank volume
• Digital microprocessor-based control with real-time feedback on bath temperature (±0.5 °C accuracy), liquid level (capacitive sensing), ultrasonic power output (40–99% stepless adjustment), and elapsed/remaining cycle time
• Integrated 200 W PTC-heated stainless steel tank with dual-sensor thermal regulation (setpoint ±0.3 °C stability over full 10–80 °C range)
• Self-diagnostic firmware with visual alerts for low liquid level, open-circuit transducers, over-temperature conditions, and current overload
• Acoustically damped lid with integrated vapor condensation channel—reducing ambient noise by ≥15 dB(A) and recovering volatile solvent vapors (optional TDV-series configuration)
• Automated fill/drain solenoid valves controlled via front-panel interface or optional RS-232/USB command protocol
• Cumulative runtime counter (999,999 h resolution) with non-volatile memory retention for maintenance scheduling and audit trail generation
• Front-panel LCD display showing simultaneous readouts: actual bath temperature, set temperature, ultrasonic power %, remaining time, liquid level status, and system voltage/current

Sample Compatibility & Compliance

The KQ-50TDE accommodates standard laboratory glassware (e.g., beakers up to 100 mL, cuvettes, capillary tubes), silicon wafers (≤150 mm diameter), printed circuit boards, dental instruments, and histological slides. Its 150 × 140 × 100 mm stainless steel tank—fabricated from electropolished 304 SS—resists corrosion from aqueous alkaline, acidic, and mild organic cleaning solutions (e.g., 0.1–2% sodium hydroxide, citric acid, isopropanol/water mixtures). The unit conforms to ASTM D2603 (Standard Test Method for Sonic Shear Stability of Polymer Solutions) for cavitation intensity validation and supports method development aligned with USP for subvisible particle testing in pharmaceutical containers. All electrical interfaces comply with CE marking requirements under Directive 2014/30/EU (EMC) and 2014/35/EU (LVD).

Software & Data Management

While the KQ-50TDE operates as a standalone instrument, its RS-232 port enables integration with laboratory information management systems (LIMS) or custom SCADA platforms using ASCII command sets (e.g., “GET_TEMP”, “SET_PWR 75”, “START”). Operational logs—including start/stop timestamps, temperature profiles, power settings, and fault codes—are stored in internal EEPROM and exportable via serial dump. Audit trails meet FDA 21 CFR Part 11 requirements when paired with validated third-party software providing electronic signatures, role-based access control, and immutable log archiving. Firmware updates are performed via USB flash drive using signed binary packages verified via SHA-256 checksum.

Applications

• Removal of submicron contaminants from optical components and photomasks prior to metrology
• Pre-analytical sample preparation for ICP-MS and HPLC, including digestion vessel cleaning and trace metal decontamination
• Cell lysis and homogenization in molecular biology workflows (e.g., bacterial pellet resuspension, chromatin shearing)
• Degassing of HPLC mobile phases and casting solutions for thin-film fabrication
• Surface activation of polymers and metals prior to coating or bonding processes
• Extraction of metabolites from plant tissues and microbial cultures under controlled thermal-acoustic conditions
• Validation of cleaning efficacy per ISO 15883-5 for reprocessable medical devices (when used with compatible detergents)

FAQ

What is the recommended cleaning solution for use with the KQ-50TDE?
Aqueous alkaline or neutral pH detergents formulated for ultrasonic applications are preferred. Avoid halogenated solvents unless the optional vapor recovery module (TDV configuration) is installed and certified for that chemistry.
Can the unit operate continuously for extended periods?
Yes—the KQ-50TDE is rated for Class B continuous duty (IEC 60034-1). Thermal management includes forced-air cooling of power electronics and automatic duty-cycle modulation above 60 °C bath temperature.
Is calibration required, and how often?
Temperature sensor calibration is traceable to NIST standards and should be verified annually using a calibrated PT100 probe. Cavitation intensity verification may be performed quarterly using ASTM E1553 aluminum foil erosion test.
Does the device support remote monitoring or network connectivity?
Native Ethernet or Wi-Fi is not included; however, RS-232 communication allows connection to industrial gateways supporting Modbus RTU or MQTT translation for cloud-based telemetry.
What safety certifications does the KQ-50TDE hold?
CE-marked per EN 61010-1:2010+A1:2019 (Safety Requirements for Electrical Equipment for Measurement, Control, and Laboratory Use) and EN 61326-1:2013 (EMC for Laboratory Equipment).