Hechuang KH3200 Benchtop Ultrasonic Cleaner
| Brand | Hechuang |
|---|---|
| Origin | Jiangsu, China |
| Model | KH3200 |
| Capacity | 6 L |
| Ultrasonic Frequency | 40 kHz |
| Ultrasonic Power | 150 W |
| Adjustable Power | No |
| Adjustable Temperature | No |
| Adjustable Timer | Yes (1–30 min) |
| Heating Function | Not equipped in base model |
| Sound-Dampening Lid | Not included |
| Drain Valve | Manual |
| Tank Material | Stainless Steel (304) |
| External Dimensions (mm) | 320 × 174 × 320 |
| Internal Tank Dimensions (mm) | 300 × 150 × 150 |
Overview
The Hechuang KH3200 is a compact, benchtop ultrasonic cleaner engineered for precision cleaning and auxiliary processing tasks in academic laboratories, R&D facilities, electronics manufacturing support labs, and quality control environments. It operates on the principle of ultrasonic cavitation—generating high-frequency mechanical vibrations (40 kHz) in liquid media to produce transient microbubbles that collapse with localized energy release. This physical phenomenon enables effective removal of particulate contaminants, organic residues, flux residues, and weakly adhered biofilms from delicate substrates—including optical components, semiconductor wafers, microfluidic devices, glassware, and stainless-steel tools—without mechanical abrasion or chemical aggression. Designed for consistent performance under continuous operation, the KH3200 delivers reproducible cleaning efficacy across small-batch applications where controlled acoustic energy input is critical.
Key Features
- Benchtop form factor with space-efficient footprint (320 × 174 × 320 mm), suitable for standard laboratory workbenches and fume hood integration.
- Stainless steel (AISI 304) tank construction ensures corrosion resistance against aqueous and mild solvent-based cleaning solutions.
- Fixed-frequency transducer system operating at 40 kHz—optimized for general-purpose cleaning of fine particles and sub-micron contaminants.
- 150 W nominal ultrasonic power output, distributed uniformly across the tank bottom via bonded piezoelectric transducers.
- Digital timer with adjustable range from 1 to 30 minutes, supporting repeatable process definition and operator safety compliance.
- Manual drain valve located at the tank base facilitates solution exchange without tilting or lifting the unit.
- Integrated stainless-steel mesh basket (optional accessory) provides secure sample support while permitting full acoustic coupling and solution circulation.
Sample Compatibility & Compliance
The KH3200 accommodates a wide range of sample geometries and materials, including but not limited to glass vials, ceramic substrates, metal fixtures, printed circuit boards (PCBs), and polymer-based microcomponents. Its non-contact cleaning mechanism preserves surface integrity and avoids micro-scratching. While the base configuration lacks temperature control and sound-dampening features, it remains compatible with ISO 13485-aligned cleaning validation protocols when used with documented cleaning agents and cycle parameters. For laboratories operating under GLP or GMP frameworks, users may integrate external temperature monitoring probes and log timer actuation events manually to support audit readiness. The device complies with IEC 61000-6-3 (EMC emission standards) and IEC 61000-6-2 (immunity requirements) for laboratory-grade electrical equipment.
Software & Data Management
The KH3200 operates via a dedicated digital control panel with LED display—no software interface, USB connectivity, or data logging capability is provided. All operational parameters are set locally and retained only during active use; no persistent memory or event history is stored. This design prioritizes simplicity, reliability, and electromagnetic compatibility in electromagnetically sensitive lab environments (e.g., near NMR spectrometers or electron microscopes). For traceability-critical workflows, users are advised to maintain manual logs referencing batch numbers, cleaning duration, solution composition, and post-cleaning inspection results—consistent with FDA 21 CFR Part 11 principles for paper-based records.
Applications
- Pre-analytical preparation of HPLC vials, GC syringes, and pipette tips to eliminate carryover contamination.
- Removal of solder paste residues and rosin flux from PCB assemblies prior to AOI or functional testing.
- Deagglomeration and dispersion of nanoparticle suspensions in material science research.
- Cell lysis support in molecular biology workflows, particularly for soft-tissue homogenization when combined with appropriate lysis buffers.
- Ultrasonic degassing of solvents prior to chromatographic analysis or thin-film deposition processes.
- Routine cleaning of reusable laboratory glassware, crucibles, and filtration apparatus in teaching labs and QC settings.
FAQ
Does the KH3200 support variable frequency operation?
No. The unit operates exclusively at 40 kHz. A separate model variant (KH3200-25) is available for applications requiring lower-frequency cavitation intensity.
Is heating functionality included in the standard KH3200 configuration?
No. The base KH3200 model does not include a built-in heater. Hechuang offers the KH3200H variant with 600 W heating and temperature control up to 80 °C.
Can the KH3200 be used with flammable solvents?
Not recommended. The unit is designed for aqueous and water-miscible cleaning solutions. Use in flammable solvent environments requires explosion-proof certification and is outside the scope of this model’s safety rating.
What maintenance is required for long-term reliability?
Regular descaling of the tank interior using diluted acetic acid (5%) every 200 operating hours; visual inspection of transducer bonding integrity; and periodic verification of timer accuracy using a calibrated stopwatch.
Is a sound-dampening lid available as an accessory?
Yes. Hechuang supplies an optional acrylic lid (Part No. KH-LID-ACR) that reduces airborne noise by approximately 12 dB(A) and minimizes solvent evaporation during extended cycles.
