Ningbo Scientz SB-120D Benchtop Ultrasonic Cleaner

Overview

The Ningbo Scientz SB-120D is a benchtop ultrasonic cleaner engineered for precision cleaning of delicate and complex laboratory components using controlled cavitation physics. It operates at a fundamental frequency of 40 kHz—optimized for balanced penetration depth and microbubble collapse energy—enabling effective removal of particulate contaminants, organic residues (e.g., oils, greases, proteins), and adsorbed films from surfaces with high geometric complexity, including capillary bores, threaded interfaces, and microstructured substrates. The device employs piezoelectric transducers bonded to the stainless-steel tank base, converting high-frequency electrical energy into mechanical vibrations transmitted uniformly through the cleaning medium (typically aqueous or mild solvent-based solutions). This acoustic energy induces transient cavitation: nucleation, growth, and implosive collapse of microbubbles within the liquid phase, generating localized shockwaves (~1000 atm) and microjets (>100 m/s) that act directly on contaminant–substrate interfaces without mechanical abrasion or thermal stress. Its fixed-power, fixed-frequency architecture ensures repeatable process conditions suitable for routine QC/QA workflows in regulated environments.

Key Features

• Benchtop compact design with dual-tank capacity options (3 L standard chamber + 5 L extended chamber) for flexible throughput scaling
• Stainless-steel tank and housing (304 grade) resistant to corrosion from common cleaning solvents and alkaline detergents
• Integrated sound-dampening lid with ergonomic latch mechanism, reducing ambient noise to ≤55 dB(A) during operation
• Digital LED timer interface supporting programmable cycle durations from 1 to 999 minutes with real-time countdown display
• Automatic shut-off with power-loss memory retention: resumes previously set timer value after brief interruption
• Transducer assembly sourced from certified industrial suppliers, ensuring long-term stability and minimal frequency drift (<±0.5% over 10,000 h)

Sample Compatibility & Compliance

The SB-120D accommodates a broad range of sample types across research, clinical, and industrial laboratories. Compatible loads include borosilicate glassware (vials, pipettes, cuvettes), polymer consumables (centrifuge tubes, microplates), metal components (surgical instruments, watch gears, fuel injectors), optical elements (lens assemblies, quartz cuvettes), and jewelry-grade substrates (gold, platinum, sapphire). It complies with IEC 61000-6-3 (EMC emissions) and IEC 61010-1 (safety requirements for electrical equipment used in laboratory settings). While not certified as a medical device under FDA 21 CFR Part 820 or ISO 13485, it supports GLP/GMP-aligned cleaning validation protocols when integrated into documented SOPs—including residue testing per USP , visual inspection per ASTM E2878, and bioburden reduction verification per ISO 15883-1 Annex D.

Software & Data Management

The SB-120D is a standalone analog-digital hybrid instrument with no embedded firmware, network interface, or data export capability. All operational parameters are controlled via front-panel push-button inputs and displayed on a 4-digit LED screen. No software installation, driver dependencies, or cybersecurity considerations apply. For audit-trail compliance in regulated labs, users are advised to log usage manually (e.g., in lab notebooks or LIMS entries) referencing batch ID, operator initials, start/end time, and solution composition. Optional external timers or PLC-integrated control modules may be deployed for automated multi-step cleaning sequences, though these fall outside the scope of factory-supplied functionality.

Applications

• Routine decontamination of reusable labware prior to sterilization or reuse—validated for residual protein removal per ASTM F2315
• Pre-analytical sample preparation: degassing of HPLC mobile phases, dispersion of nanomaterial suspensions, cell lysis support for RNA extraction protocols
• Maintenance cleaning of analytical instrumentation components: GC injectors, ICP-MS nebulizers, SEM sample stages
• Restoration of optical clarity in microscopy objectives and spectrophotometer cuvettes contaminated with hydrophobic films
• Supporting ISO/IEC 17025-accredited calibration labs in maintaining traceable cleanliness standards for reference material handling

FAQ

Is the SB-120D suitable for cleaning heat-sensitive polymers such as polycarbonate or PET?

Yes—provided appropriate low-temperature aqueous detergents are used and exposure duration is optimized to avoid prolonged acoustic fatigue; empirical validation is recommended for critical applications.
Does the unit meet CE or UL safety certification requirements?

It carries CE marking per Directive 2014/30/EU (EMC) and 2014/35/EU (LVD); UL listing is not available, but construction adheres to UL 61010-1 structural safety principles.
Can I use organic solvents like acetone or ethanol in the tank?

Only if the solvent is non-flammable and compatible with 304 stainless steel; flammable solvents require explosion-proof ultrasonic systems and are strictly prohibited in this model.
What maintenance is required for long-term reliability?

Monthly inspection of transducer bonding integrity, quarterly descaling with 5% citric acid solution, and annual verification of timer accuracy against a calibrated stopwatch.
Is there a service manual or spare parts list available for field repair?

Scientz provides authorized technical documentation and OEM replacement transducers, tanks, and control boards upon request through regional service partners—no user-serviceable internal components are accessible without voiding warranty.