22L Industrial Benchtop Low-Frequency 25kHz Ultrasonic Bath — 800W Power-Tuned Washer with Degas & Pulse Modes
$1,225.00 piece
| Quantity | Price | Discount |
|---|---|---|
| 2-20 | $1,163.75 piece | 5% |
| 21-100 | $1,102.50 piece | 10% |
| 101+ | $1,041.25 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 | GNL1622-25 |
|---|---|
| Brand | Granbo |
| Manufacturer | Granbo Technology Industrial Shenzhen Co., Ltd. |
| Origin | China |
| Capacity | 22L |
| Frequency | 25kHz |
| Power | 0–800W |
| 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 |
| Timer | 1-9999s |
| Tank Size(mm) | 500 x 300 x 150 |
| Unit Size(mm) | 600 x 360 x 380 |
| 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 | Cutting Dust Removal, Dispersion, Emulsification, Heavy Rust Removal, Long Metal Tools, Motor Shafts, Polishing Paste, Resin Molds, Scale Removal, Solvent Degassing |
Packaging
| Chargeable Weight | 63 kg |
|---|---|
| Package Dimensions | 75 × 45 × 48 cm |
Description
High-Impact 25kHz Cavitation & Intensive Acoustic Shear
Operating at a low 25kHz frequency, this ultrasonic cleaning system generates large cavitation bubbles that collapse with violent mechanical shock. The high-energy impact easily shears off stubborn deposits such as heavy rust, thick oil film, scale removal residues, cutting dust, and persistent polishing paste from robust metal substrates. Beyond aggressive surface scrubbing, the high acoustic energy provides powerful shear force for sonochemical liquid processing, excelling at solvent degassing, liquid emulsification, and coarse solid dispersion.
Extended 22L Shallow Tank Profile & Heavy-Duty Build
Featuring an expansive 22L tank volume with internal dimensions of 50 x 30 x 15 cm, this unit offers an ideal wide and shallow geometry for oversized items. It is specifically engineered to accommodate long metal tools, extended motor shafts, surgical instruments, long pipes, and flat resin molds that do not fit into standard vertical tanks, as well as side-by-side arrangements of multiple laboratory glassware beakers. To endure persistent low-frequency acoustic shock, the inner tank is constructed from 2.0mm thick SUS304 stainless steel welded by heavy manual oxy-acetylene processes for maximum erosion resistance.
Diverse Application Spectrum & Workpiece Compatibility
- Extended Hardware & Mechanical Tooling: Ideal for cleaning long metal tools, extended motor shafts, stainless steel pipes, cutting dies, and heavy resin molds.
- Aggressive Decontamination: Rapidly removes heavy rust, baked-on oil, tenacious scale removal buildup, cutting dust, and hardened polishing paste.
- Fluid Processing & Sample Preparation: Accelerates solvent degassing, high-shear liquid emulsification, particle dispersion, and uniform liquid mixing.
800W Variable Power Drive & Smart Digital Modes
- 0–800W Linear Power Tuning: Powered by 16 high-efficiency 50W transducers, offering full control from gentle fluid agitation up to 800W full-power scrubbing.
- Sweep & Pulse Operating Modes: Sweep mode alternates frequencies around 25kHz to eliminate standing waves across the 50cm wide basin, while Pulse mode delivers concentrated energy spikes to shatter resilient surface crusts.
- Integrated Degas & Thermal System: Degas mode swiftly evacuates entrapped gas from cleaning solutions to optimize ultrasonic efficiency, complemented by a RT–80°C heating circuit to liquefy stubborn grease and wax.
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.
25kHz 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) |
| GNL0303-25 | 3 | 3.2 | 240x135x100 | 340x195x320 | 25 | 0-150 | 300 | 20-80 | 1-9999 |
| GNL0305-25 | 3 | 4.8 | 240x135x150 | 340x195x370 | 25 | 0-150 | 300 | 20-80 | 1-9999 |
| GNL0404-25 | 4 | 4.5 | 300x150x100 | 400x210x220 | 25 | 0-200 | 450 | 20-80 | 1-9999 |
| GNL0406-25 | 4 | 6.5 | 300x150x150 | 400x210x370 | 25 | 0-200 | 450 | 20-80 | 1-9999 |
| GNL0810-25 | 8 | 10 | 300x240x150 | 400x300x370 | 25 | 0-400 | 600 | 20-80 | 1-9999 |
| GNL0814-25 | 8 | 14 | 300x240x200 | 400x300x420 | 25 | 0-400 | 600 | 20-80 | 1-9999 |
| GNL1015-25 | 10 | 15 | 330x300x150 | 430x360x370 | 25 | 0-500 | 1000 | 20-80 | 1-9999 |
| GNL1019-25 | 10 | 19 | 330x300x200 | 430x360x420 | 25 | 0-500 | 1000 | 20-80 | 1-9999 |
| GNL1622-25 | 16 | 22 | 500x300x150 | 600x360x380 | 25 | 0-800 | 1000 | 20-80 | 1-9999 |
| GNL1630-25 | 16 | 30 | 500x300x200 | 600x360x430 | 25 | 0-800 | 1000 | 20-80 | 1-9999 |
22L 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) |
|---|---|---|---|---|---|---|---|---|---|
| GNLH1422-17 | 14 | 22 | 500×300×150 | 600×360×380 | 17 | 0–1120 | 1000 | 20–80 | 1–9999 |
| GNLH1422-20 | 14 | 22 | 500×300×150 | 600×360×380 | 20 | 0–1400 | 1000 | 20–80 | 1–9999 |
| GNL1622-25 | 16 | 22 | 500×300×150 | 600×360×380 | 25 | 0–800 | 1000 | 20–80 | 1–9999 |
| GL1422-28 | 14 | 22 | 500×300×150 | 530×330×345 | 28 | 0–700 | 1000 | 20–80 | 1–9999 |
| GL1422-33 | 14 | 22 | 500×300×150 | 530×330×345 | 33 | 0–700 | 1000 | 20–80 | 1–9999 |
| GL1022-40 | 10 | 22 | 500×300×150 | 530×330×335 | 40 | 0–500 | 1000 | 20–80 | 1–9999 |
| GLS3222-50 | 32 | 22 | 500×300×150 | 530×330×335 | 50 | 0–960 | 1000 | 20–80 | 1–9999 |
| GLS3222-53 | 32 | 22 | 500×300×150 | 530×330×335 | 53 | 0–1120 | 1000 | 20–80 | 1–9999 |
| GL1622-68 | 16 | 22 | 500×300×150 | 530×330×345 | 68 | 0–800 | 1000 | 20–80 | 1–9999 |
| GL1622-80 | 16 | 22 | 500×300×150 | 530×330×335 | 80 | 0–800 | 1000 | 20–80 | 1–9999 |
| GL1622-120 | 16 | 22 | 500×300×150 | 530×330×335 | 120 | 0–800 | 1000 | 20–80 | 1–9999 |
| GL1622-130 | 16 | 22 | 500×300×150 | 530×330×335 | 130 | 0–960 | 1000 | 20–80 | 1–9999 |
| GLS3222-200 | 32 | 22 | 500×300×150 | 530×330×335 | 200 | 0–800 | 1000 | 20–80 | 1–9999 |
| GL1422-2840 | 14 | 22 | 500×300×150 | 530×330×345 | 28/40 | 0–700 | 1000 | 20–80 | 1–9999 |
| GL1622-4068 | 16 | 22 | 500×300×150 | 530×330×345 | 40/68 | 0–800 | 1000 | 20–80 | 1–9999 |
| GL1622-4080 | 16 | 22 | 500×300×150 | 530×330×335 | 40/80 | 0–800 | 1000 | 20–80 | 1–9999 |
| GL1622-40120 | 16 | 22 | 500×300×150 | 530×330×335 | 40/120 | 0–800 | 1000 | 20–80 | 1–9999 |
| GL1622-80120 | 16 | 22 | 500×300×150 | 530×330×335 | 80/120 | 0–800 | 1000 | 20–80 | 1–9999 |
| GL1622-255080120 | 16 | 22 | 500×300×150 | 530×330×335 | 25/50/80/120 | 0–800 | 1000 | 20–80 | 1–9999 |
| GL1622-4080100160 | 16 | 22 | 500×300×150 | 530×330×335 | 40/80/100/160 | 0–800 | 1000 | 20–80 | 1–9999 |
| GL1622-4080120170 | 16 | 22 | 500×300×150 | 530×330×335 | 40/80/120/170 | 0–800 | 1000 | 20–80 | 1–9999 |
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