22L Granbo Ultrasonic Cleaner 40KHz 900W Digital Degas PCB
22L Industrial Ultrasonic Cleaner – 40KHz | 480W–900W | Digital Degassing
The Granbo 22L Industrial Ultrasonic Cleaner delivers powerful, high-frequency cavitation cleaning at 40KHz with selectable ultrasonic power from 480W up to 900W (semiwave mode). Whether you're cleaning PCB boards, auto parts, hardware, jewelry, carburetors, or precision instruments, this professional-grade machine cuts through grease, flux residue, rust, and contaminants in minutes — without abrasion or manual scrubbing.
Engineered with a SUS 304 stainless steel tank (500×300×150mm) and a robust 600W heating element adjustable from 20°C to 80°C, it combines heat and ultrasonic energy for thorough, efficient cleaning cycles. The built-in digital degassing function removes dissolved gas from the liquid to maximize cavitation performance from the very first use.
Key Features
- 22L Large Capacity Tank — 500×300×150mm SUS 304 stainless steel, handles large auto parts, PCBs, and industrial hardware with ease
- Adjustable Ultrasonic Power — 480W / 600W / 720W / 900W selectable; semiwave mode available for delicate or precision components
- 40KHz Ultrasonic Frequency — Deep-penetrating cavitation action removes contaminants from blind holes, threads, and fine geometries
- Digital Degassing Mode — Actively removes dissolved gas before cleaning cycles to maximize cavitation efficiency
- 600W Heating System — Adjustable temperature 20°C–80°C for optimal cleaning with chemical solutions or plain water
- 0–30 Minute Digital Timer — Precise cycle control with easy-to-read digital display
- Cooling Fan Included — Protects internal electronics during extended or high-power operation
- Dual Voltage Compatible — Works on both 110V and 220V power supplies for global use
- CE & RoHS Certified — Meets international safety and environmental standards
- Includes: Stainless steel mesh basket, user manual, and power cord
Technical Specifications
| Brand | Granbo (Granbosonic) |
| Model | GW1022 / GW1222 / GW1522 |
| Tank Capacity | 22 Litres |
| Tank Size | 500 × 300 × 150 mm |
| Unit Dimensions | 530 × 330 × 280 mm |
| Tank Material | Stainless Steel 304 |
| Ultrasonic Frequency | 40 kHz |
| Ultrasonic Power (normal) | 480W / 600W / 720W |
| Ultrasonic Power (semiwave) | 600W / 720W / 900W |
| Heating Power | 600W |
| Heater Range | 20°C – 80°C |
| Timer | 0 – 30 Minutes |
| Voltage | 110V / 220V |
| Degassing | Supported |
| Semiwave Mode | Supported |
| Cooling Fan | Yes |
| Certifications | CE, RoHS |
| Country of Origin | Made in Mainland China |
What Can You Clean?
This versatile industrial ultrasonic cleaner is ideal for a wide range of applications:
- PCB boards & electronic components
- Auto parts: carburetors, fuel injectors, brake components, bearings
- Hardware: nuts, bolts, gears, molds, and machined parts
- Jewelry, watches, and precision instruments
- Medical & dental instruments (general lab use)
- Optical lenses and eyeglass frames
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Frequently Asked Questions
Q: What is the difference between normal mode and semiwave mode on this ultrasonic cleaner?
A: In normal mode, the transducers operate at full-wave power (480W, 600W, or 720W), ideal for general-purpose heavy-duty cleaning. Semiwave mode increases the peak power output (up to 900W) by delivering half-wave ultrasonic pulses, which generates stronger cavitation bursts — particularly effective for stubborn grease, carbon deposits, and tightly packed assemblies like auto parts and industrial hardware.
Q: Do I need to use a cleaning solution, or can I just use water?
A: Plain water works for basic cleaning, but using a compatible ultrasonic cleaning solution or diluted industrial degreaser significantly improves results for grease, flux, oxidation, and mineral deposits. The built-in heater (adjustable up to 80°C) further activates cleaning chemistry for faster and more thorough results.
Q: Is this cleaner safe for PCBs and sensitive electronic components?
A: Yes. When used with an appropriate PCB-safe cleaning fluid and the semiwave or lower power setting, this cleaner is well-suited for washing circuit boards. Always ensure components are fully dry before powering up any electronics after cleaning.
Q: What voltage does this unit support?
A: The Granbo 22L ultrasonic cleaner supports both 110V and 220V, making it compatible with standard outlets in North America, Europe, Asia, and other regions worldwide.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.