Ningbo Scientz SB-300DTY Sweep-Frequency Dual-Frequency Ultrasonic Cleaner

Overview

The Ningbo Scientz SB-300DTY Sweep-Frequency Dual-Frequency Ultrasonic Cleaner is an engineered solution for high-reliability laboratory and light industrial cleaning applications. It operates on the physical principle of acoustic cavitation—where high-frequency sound waves propagate through a liquid medium, generating transient microbubbles that grow and collapse violently under alternating pressure cycles. This implosive collapse releases localized energy in the form of shockwaves and microjets (up to ~5,000 K and ~1,000 atm), enabling mechanical disruption of contaminants adhering to surfaces—even within complex geometries such as capillary tubes, blind holes, and microstructured substrates. Unlike fixed-frequency units, the SB-300DTY implements sweep-frequency modulation across two discrete resonant bands (25.33 kHz and 40.59 kHz), minimizing standing wave formation and ensuring uniform energy distribution throughout the tank volume. This architecture enhances cleaning reproducibility across heterogeneous sample loads and reduces the risk of ultrasonic hotspots or localized surface erosion.

Key Features

• Sweep-frequency dual-transducer array operating at 25.33 kHz and 40.59 kHz—engineered to suppress node/antinode patterns and improve cleaning homogeneity
• 360 W total ultrasonic power output delivered via high-efficiency piezoelectric transducers bonded to the stainless-steel tank base
• Digital timer with adjustable range from 1 to 999 minutes—supports precise process control and repeatable protocol execution
• Integrated sound-dampening lid with safety interlock—reduces ambient noise by ≥15 dB(A) and prevents solvent evaporation during operation
• Standard drain-and-fill fittings (1/4″ NPT)—enabling rapid tank emptying, solvent exchange, and integration into semi-automated cleaning workflows
• Stainless-steel 304 tank construction (10 L capacity)—resistant to corrosion from aqueous and mild organic solvents including isopropanol, ethanol, and alkaline detergent solutions

Sample Compatibility & Compliance

The SB-300DTY accommodates a broad spectrum of laboratory and technical samples without requiring specialized fixtures. Compatible load types include borosilicate glassware (vials, centrifuge tubes, Petri dishes), fused silica and quartz optics, stainless-steel surgical instruments, precision-machined metal components (e.g., fuel injectors, watch gears), and polymer-based substrates (PC, PEEK, PMMA). While the unit does not incorporate active heating or variable power control, its dual-frequency sweep mode ensures consistent cavitation intensity across temperature gradients commonly observed during extended cleaning cycles (20–45°C typical operational range). The device complies with IEC 61000-6-3 (EMC emission standards) and meets CE marking requirements for laboratory equipment. It supports GLP-aligned documentation practices when paired with external temperature loggers and timer validation protocols.

Software & Data Management

The SB-300DTY operates via an embedded microcontroller-based interface with no external software dependency. All operational parameters—including elapsed time, remaining time, and real-time status—are displayed on a backlit LCD panel. Though it lacks USB or Ethernet connectivity, the unit supports audit-ready manual logging: timer settings are retained after power interruption (non-volatile memory), and each cycle’s duration can be recorded alongside batch identifiers for traceability. For laboratories subject to FDA 21 CFR Part 11 or ISO/IEC 17025 requirements, users may integrate the cleaner into validated workflows using third-party data acquisition systems connected to the timer’s dry-contact output signal (optional accessory).

Applications

• Cleaning of analytical glassware prior to HPLC, GC, or ICP-MS analysis—reducing carryover and baseline drift
• Preparation of electron microscopy specimens by removing hydrocarbon residues from TEM grids and SEM stubs
• De-gassing of mobile phases and calibration standards to eliminate bubble formation in precision fluidic systems
• Surface preparation of sensors, MEMS devices, and photomasks prior to thin-film deposition or bonding
• Routine maintenance of reusable medical devices in ISO 13485-certified facilities—when used with validated cleaning chemistries and rinse protocols
• Restoration of optical clarity in microscope objectives and camera lenses contaminated with fingerprint oils or polishing compounds

FAQ

Does the SB-300DTY support temperature regulation during operation?
No. The unit operates at ambient temperature only and does not include a heating element or thermostat.
Can the ultrasonic power output be adjusted?
No. The device delivers fixed 360 W output across both frequencies; power modulation is not supported.
Is sweep-frequency operation automatic or manually selected?
Sweep mode is enabled by default—no user selection is required. The controller continuously modulates between 25.33 kHz and 40.59 kHz at programmable dwell intervals to optimize cavitation distribution.
What is the maximum permissible liquid depth for optimal performance?
For full 10 L capacity, fill level should not exceed 8.5 L (85% of tank volume) to maintain effective acoustic coupling and avoid overflow during intense cavitation.
Are replacement transducers or service kits available directly from Scientz?
Yes. Original-specification transducer assemblies and gasket kits are supplied under part numbers SC-TX-25K and SC-TX-40K, with lead times of 4–6 weeks for international distribution channels.