3.2L Benchtop 40kHz Ultrasonic Cleaner with 150W Power Control for Small Hardware, Manicure Tools & Optical Components
$190.00 piece
Featuring 150W adjustable power and 80°C heating, this 3.2L 40kHz benchtop ultrasonic cleaner delivers balanced acoustic cavitation for non-destructive cleaning of small hardware, manicure tools, optical components, and precision beaker sample preparation.
| Quantity | Price | Discount |
|---|---|---|
| 2-20 | $180.50 piece | 5% |
| 21-100 | $171.00 piece | 10% |
| 101+ | $161.50 piece | 15% |
Shipping & Delivery
-
Express Air Delivery
Door-to-door with tracking
7-15 Business Days
Calculated at checkout
-
Standard Ocean Freight
Best for bulk & heavy cargo
25-35 Business Days
Calculated at checkout
-
Warranty 1 year
-
Free 30-Day returns
Specification
Overview
| Model | GL0303-40 |
|---|---|
| Brand | Granbo |
| Manufacturer | Granbo Technology Industrial Shenzhen Co., Ltd. |
| Origin | China |
| Capacity | 3.2L |
| Frequency | 40kHz |
| Power | 0–150W |
| Tank Material | SUS304 Stainless Steel |
| Housing Material | SUS304 Stainless Steel |
| Function | Degassing, Digital Control, Heating, Noise Reduction, Power Adjustable, Pulse, Semiwave, Sweep, Timer |
| Heater | RT~80°C |
| Heating Power | 300W |
| Timer | 1-9999s |
| Tank Size(mm) | 240 x 135 x 100 |
| Unit Size(mm) | 265 x 165 x 280 |
| Voltage | 100V-120V ~ 60Hz / 220V-240V ~ 50Hz |
| Plug Type | AU Plug, EU Plug, Other Plugs, UK Plug, US Plug |
| Warranty | 1 Year |
| Customization | 485 Port, Frequency, PLC System, Tanks Numbers |
| Certificates | CE, FCC, ISO 9001, RoHS |
| Applications | Automotive Valves, Beaker Sample Preparation, Coarse Powder Dispersion, Dental Instruments, Fuel Injectors, Optical Components, Resin Parts Cleaning, Small Hardware, Solvent Degassing, Threaded Fasteners |
Packaging
| Chargeable Weight | 6.1 kg |
|---|---|
| Package Dimensions | 35 × 24.5 × 35 cm |
Description
Balanced 40kHz Frequency for Safe, High-Efficiency Surface Cleaning
Operating at the universal benchmark frequency of 40kHz, this system produces balanced acoustic cavitation (~36.2mm wavelength) that delivers powerful micro-scrubbing without substrate erosion. Driven by 3 high-efficiency 50W transducers (150W total output), it provides the ideal balance between mechanical cleansing force and material protection.
- Micron-Scale Particle Extraction: Effortlessly strips dust, oil films, fingerprints, and particulate matter greater than 10μm from delicate geometries without scratching soft metals or cracking rigid polymers.
- Broad Material Compatibility: Safe for cleaning stainless steel, titanium, glass, ABS, PVC, and ceramics, making it exceptionally reliable for Manicure Tools, Optical Components, and Resin Parts Cleaning.
- Intricate Crevice Penetration: Penetrates fine internal grooves, blind recesses, and external threading on Small Hardware and precision Threaded Fasteners that manual brushing cannot reach.
Versatile 3.2L Capacity for Benchtop Components and Vessel Processing
With an internal tank dimension of 240 × 135 × 100 mm (L × W × H), this compact 3.2L capacity ultrasonic bath provides a versatile footprint for space-constrained workbenches while optimizing energy density.
- Precision Mechanical & Maintenance Parts: Accommodates targeted batches of Small Hardware, Automotive Valves, Fuel Injectors, and precision Threaded Fasteners placed inside the protective stainless steel wire basket.
- Salon & Laboratory Vessel Processing: Ideal for submerging instrument trays with Manicure Tools and Optical Components, as well as hosting beakers up to 500mL for accelerated Beaker Sample Preparation, Powder Dispersion, and rapid Solvent Degassing.
- Direct Fluid Agitation: Concentrated 150W power density delivers rapid energy transfer for Beaker Sample Preparation and fine Powder Dispersion without acoustic dead zones.
Digital Thermal and Cycle Control Architecture
- 0–150W Adjustable Output: Dial in precise ultrasonic intensity to prevent cavitation damage on fragile Manicure Tools or increase power for stubborn grease on Small Hardware.
- Ambient to 80°C Adjustable Heater: Lowers surface tension and melts hardened waxes or lubricants, boosting detergent activity on Automotive Valves and Fuel Injectors.
- 1–9999s Digital Timer: Provides exact cycle programming for consistent, automated runs across all Beaker Sample Preparation and Solvent Degassing protocols.
- Industrial SUS304 Construction: Cavitation-resistant pressed stainless steel inner tank ensures long-term resistance against chemical erosion and continuous operation.
Control Panel Overview
Control Button Guide
Sweep Frequency Technology Overview
Pulse Mode Overview
Granbo PCB vs. Standard Ultrasonic Cleaner PCB
Multi-Layer Noise Reduction Design
Box Contents:
- 1 x Professional Ultrasonic Cleaner
- 1 x Durable Mesh Cleaning Basket
- One cover, one power cord, one manual warranty card certificate of conformity.
Packing type:
- One unit filled with thick foam, then standard export corrugated carton or wooden box.
Real Customer Feedback
Support & FAQ
Frequency determines cavitation bubble size, impact force, and penetration depth. Lower frequencies produce violent impact for heavy dirt, while higher frequencies provide dense, gentle cleaning for sub-micron microstructures:
• 28kHz: Heavy oil, scale, rust, polishing wax, cutting dust, and thick contaminants (>10μm) on heavy metal/resin parts.
• 40kHz: Universal choice for standard labware, stainless steel, glass, and general maintenance (>10μm particles).
• 68kHz / 80kHz: Fine cleaning for PCBs, watch components, optics, medical instruments, and micro-grooves (5–10μm particles).
• 120kHz: Precision cleaning for micro-blind holes (<0.1mm), semiconductors, ICs, optical lenses, and MEMS (1–5μm particles).
• 200kHz: Ultra-precision cleaning for silicon wafers, MEMS, thin films, and sub-micron / nano-scale contamination (<1μm).
Based on Granbo multi-frequency switchable configurations (Single/Dual/Triple/Quad), we recommend:
| Process | Recommended Frequency | Application Context |
|---|---|---|
| Dispersion | 17-28kHz / 40kHz / 120kHz | 17-28kHz for coarse solid chunks; 40kHz for powders; 120kHz for micro/nano suspensions. |
| Emulsification | 28kHz / 40kHz | 28kHz generates stronger shear force for heavy liquid blending. |
| Extraction | 40kHz / 120kHz | 120kHz is standard for intracellular substance extraction and cell disruption. |
| Mixing/Catalysis | 40kHz / 120kHz | 40kHz for routine mixing; 120kHz for micro-particle homogenization. |
| Synthesis | 80kHz / 120kHz | Prevents molecular degradation during material synthesis. |
| Environmental | 20kHz | High-power sonication for sludge treatment, sewage, and algae disruption. |
To resist cavitation erosion, Granbo customizes tank thickness and welding based on operating frequency:
| Frequency Range | Inner Tank (SUS304) | Outer Shell | Common Tank Capacities & Process |
|---|---|---|---|
| 28kHz - 200kHz | 1.5 mm Thickness | SUS304 (1.0 mm) | 3–10L, 14–22L, 30–58L, 61–135L. Industrial precision stamping & TIG welding. |
| 25kHz | 2.0 mm Thickness | SUS201 (1.0 mm) | Thickened tank; Manual oxy-acetylene heavy welding. |
| 17kHz & 20kHz | 3.0 mm Thickness | SUS201 (1.0 mm) | Ultra-thickened tank; Manual oxy-acetylene heavy welding. |
*Material Safety Tip: Soft metals (aluminum, brass, gold) and delicate glass/ceramics may scratch or fracture at 28kHz. We recommend 40kHz to 80kHz or pre-testing for delicate substrates.
When a workpiece has both stubborn contaminants and sub-micron precision requirements, use a multi-stage approach:
- Stage 1 (Pre-cleaning / 28kHz or 40kHz): Strips heavy grease, rust, polishing paste, scale, or coarse metal particles.
- Stage 2 (Fine Cleaning / 68kHz or 80kHz): Removes fine particles (5–10μm) from blind holes, threads, and complex internal geometry.
- Stage 3 (Ultra-Precision Rinse / 120kHz or 200kHz): Eliminates sub-micron (<1μm) residues without damaging fragile surfaces or thin films.
- Sweep Mode: Automatically sweeps ±1kHz around the center frequency to eliminate standing waves, ensuring uniform cavitation across the bath.
- Degas Mode: Uses pulsed ultrasound intervals (e.g., 5s on / 5s off) to purge dissolved air/gas from liquids—crucial for HPLC sample prep and max cavitation efficiency.
- Pulse Mode: Rapidly cycles power from 100% to 0% to produce a "blasting" impact that removes tough or baked-on residues.
Granbo units utilize Full-Bridge Separately Excited PCB Driver Boards rather than cheap self-excited circuits:
- Visualized Real-time Data: Displays live Power, Frequency, and Current for strict laboratory protocol logging.
- High Power Density: Guarantees a standard ≥ 0.3W/cm² for thorough cleaning. Power Density = Ultrasonic Power (W) / Radiating Area (cm²)
- Low Noise Operation: While 28kHz operation naturally produces more audible mechanical noise, Granbo's multi-layer noise-reduction design enables high-frequency units (≥68kHz) to operate at noise levels below 80dB.
Ultrasonic frequency determines sound wavelength and cavitation bubble collapse intensity:
- 20kHz (λ ≈ 72.5mm): Large bubbles, high collapse force. Best for heavy rust, sludge, and thick scale.
- 40kHz (λ ≈ 36.2mm): Medium bubbles. Ideal balance between cleaning power and component safety.
- 120kHz (λ ≈ 12.0mm): Micro bubbles. High penetration depth for sub-micron cracks and fragile silicon/semiconductor parts.
Beaker Size Matching:
• Beaker ≤ 500mL → 3.2L to 6.5L Tank.
• Beaker ≥ 800mL → 10L to 30L Tank (10L is the most popular size for general lab applications).
Temperature Management:
Ultrasonic activity inherently raises liquid temperature. Although Granbo heating goes up to 80°C, cavitation effectiveness drops significantly above 72°C–80°C due to increased vapor pressure. For temperature-sensitive or low-temp processes, use cooling coils or ice packs in the bath.
Standard production lead times for out-of-stock or customized Granbo models:
- 28kHz - 200kHz Models (Single, Dual, Triple, Quad Frequency): 3 - 5 business days for shipping.
- Ultra-Low Frequency (17kHz, 20kHz, 25kHz): 14 - 20 business days for shipping.
*Note: Customizations like RS-485 communication or PLC integration may slightly adjust delivery timelines. Contact us for precise scheduling.
More Models & Specifications
Click a model name to view its corresponding product page and detailed specifications.
40kHz Series
| Model | Transducers
(PCS) |
Capacity
(L) |
Tank Size
(LxWxH mm) |
Unit Size
(LxWxH mm) |
Frequency
(kHz) |
Ultrasonic Power
(W) |
Heating Power
(W) |
Temp.
(C) |
Timer
(S) |
| GL0203-40 | 2 | 3.2 | 240x135x100 | 265x165x280 | 40 | 0-100 | 300 | 20-80 | 1-9999 |
| GL0205-40 | 2 | 4.8 | 240x135x150 | 265x165x330 | 40 | 0-100 | 300 | 20-80 | 1-9999 |
| GL0304-40 | 3 | 4.5 | 300x150x100 | 325x175x280 | 40 | 0-150 | 450 | 20-80 | 1-9999 |
| GL0306-40 | 3 | 6.5 | 300x150x150 | 325x175x330 | 40 | 0-150 | 450 | 20-80 | 1-9999 |
| GL0410-40 | 4 | 10 | 300x240x150 | 325x265x330 | 40 | 0-200 | 600 | 20-80 | 1-9999 |
| GL0414-40 | 4 | 14 | 300x240x200 | 325x265x380 | 40 | 0-200 | 600 | 20-80 | 1-9999 |
| GL0615-40 | 6 | 15 | 330x300x150 | 355x325x330 | 40 | 0-300 | 1000 | 20-80 | 1-9999 |
| GL0619-40 | 6 | 19 | 330x300x200 | 355x325x380 | 40 | 0-300 | 1000 | 20-80 | 1-9999 |
| GL1022-40 | 10 | 22 | 500x300x150 | 530x330x335 | 40 | 0-500 | 1000 | 20-80 | 1-9999 |
| GL1030-40 | 10 | 30 | 500x300x200 | 530x330x385 | 40 | 0-500 | 1000 | 20-80 | 1-9999 |
| GL0303-40 | 3 | 3.2 | 240x135x100 | 265x165x280 | 40 | 0-150 | 300 | 20-80 | 1-9999 |
| GL0305-40 | 3 | 4.8 | 240x135x150 | 265x165x330 | 40 | 0-150 | 300 | 20-80 | 1-9999 |
| GL0404-40 | 4 | 4.5 | 300x150x100 | 325x175x280 | 40 | 0-200 | 450 | 20-80 | 1-9999 |
| GL0406-40 | 4 | 6.5 | 300x150x150 | 325x175x330 | 40 | 0-200 | 450 | 20-80 | 1-9999 |
| GL0810-40 | 8 | 10 | 300x240x150 | 325x265x330 | 40 | 0-400 | 600 | 20-80 | 1-9999 |
| GL0814-40 | 8 | 14 | 300x240x200 | 325x265x380 | 40 | 0-400 | 600 | 20-80 | 1-9999 |
| GL1015-40 | 10 | 15 | 330x300x150 | 355x325x330 | 40 | 0-500 | 1000 | 20-80 | 1-9999 |
| GL1019-40 | 10 | 19 | 330x300x200 | 355x325x380 | 40 | 0-500 | 1000 | 20-80 | 1-9999 |
| GL1622-40 | 16 | 22 | 500x300x150 | 530x330x335 | 40 | 0-800 | 1000 | 20-80 | 1-9999 |
| GL1630-40 | 16 | 30 | 500x300x200 | 530x330x385 | 40 | 0-800 | 1000 | 20-80 | 1-9999 |
3.2L Capacity
| Model | Transducers (PCS) |
Capacity (L) |
Tank Size (L×W×H mm) |
Unit Size (L×W×H mm) |
Frequency (kHz) |
Ultrasonic Power (W) |
Heating Power (W) |
Temp. (°C) |
Timer (S) |
|---|---|---|---|---|---|---|---|---|---|
| GNLH0203-17 | 2 | 3.2 | 240×135×100 | 340×195×320 | 17 | 0–160 | 300 | 20–80 | 1–9999 |
| GNLH0203-20 | 2 | 3.2 | 240×135×100 | 340×195×320 | 20 | 0–200 | 300 | 20–80 | 1–9999 |
| GNL0303-25 | 3 | 3.2 | 240×135×100 | 340×195×320 | 25 | 0–150 | 300 | 20–80 | 1–9999 |
| GL0203-28 | 2 | 3.2 | 240×135×100 | 265×165×290 | 28 | 0–100 | 300 | 20–80 | 1–9999 |
| GL0203-33 | 2 | 3.2 | 240×135×100 | 265×165×290 | 33 | 0–100 | 300 | 20–80 | 1–9999 |
| GL0203-40 | 2 | 3.2 | 240×135×100 | 265×165×280 | 40 | 0–100 | 300 | 20–80 | 1–9999 |
| GL0303-40 | 3 | 3.2 | 240×135×100 | 265×165×280 | 40 | 0–150 | 300 | 20–80 | 1–9999 |
| GLS0603-50 | 6 | 3.2 | 240×135×100 | 265×165×280 | 50 | 0–180 | 300 | 20–80 | 1–9999 |
| GLS0603-53 | 6 | 3.2 | 240×135×100 | 265×165×280 | 53 | 0–210 | 300 | 20–80 | 1–9999 |
| GL0303-68 | 3 | 3.2 | 240×135×100 | 265×165×290 | 68 | 0–150 | 300 | 20–80 | 1–9999 |
| GL0303-80 | 3 | 3.2 | 240×135×100 | 265×165×280 | 80 | 0–150 | 300 | 20–80 | 1–9999 |
| GL0303-120 | 3 | 3.2 | 240×135×100 | 265×165×280 | 120 | 0–150 | 300 | 20–80 | 1–9999 |
| GL0303-130 | 3 | 3.2 | 240×135×100 | 265×165×280 | 130 | 0–180 | 300 | 20–80 | 1–9999 |
| GLS0603-200 | 6 | 3.2 | 240×135×100 | 265×165×280 | 200 | 0–150 | 300 | 20–80 | 1–9999 |
| GL0203-2840 | 2 | 3.2 | 240×135×100 | 265×165×290 | 28/40 | 0–100 | 300 | 20–80 | 1–9999 |
| GL0303-4068 | 3 | 3.2 | 240×135×100 | 265×165×290 | 40/68 | 0–150 | 300 | 20–80 | 1–9999 |
| GL0303-4080 | 3 | 3.2 | 240×135×100 | 265×165×280 | 40/80 | 0–150 | 300 | 20–80 | 1–9999 |
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