650ml Ultrasonic Cleaner 5 Modes & Timer | Jewelry & Glasses
Deep Clean Everything in Minutes – Without the Scrubbing
Meet the 650ml Ultrasonic Sonic Cleaner (Model SJ-W3) — a compact, powerful home cleaning device that uses 45kHz ultrasonic waves to gently but thoroughly clean your most delicate everyday items. Jewelry, eyeglasses, dentures, watch straps, razors — all come out sparkling without a drop of harsh chemicals or manual effort. Made in Mainland China.
Why You'll Love It
- 5 Cleaning Modes – Choose the perfect intensity for each item. Five selectable timer settings (90s / 180s / 280s / 380s / 480s) give you total control over every wash cycle.
- Digital Timer Display – A clear digital countdown keeps you informed from start to finish. No guessing, no over-cleaning.
- 45kHz Ultrasonic Frequency – High-frequency micro-bubbles (cavitation) get into every tiny groove, crevice, and setting that a brush simply can't reach, lifting away oils, grime, and residue with ease.
- Generous 650ml Tank – The spacious 160×90×50mm tank handles multiple items in a single cycle, saving you time and water.
- USB / Type-C Powered – Plug into any USB port or Type-C adapter. No proprietary power brick required — perfect for home, office, or travel use.
- 35W Efficient Motor – Plenty of power packed into a lightweight 0.95kg body.
- Water-Only Cleaning – Just fill with water. No special tablets or solvents needed (though water + a drop of mild liquid soap works great for extra greasy items).
- Durable Plastic Housing – Lightweight, corrosion-resistant construction built to last, backed by a 1-year warranty on core components.
What Can You Clean?
This versatile machine works beautifully on a wide range of everyday items:
- 🔮 Jewelry (rings, necklaces, earrings, bracelets)
- 👓 Eyeglasses & sunglasses frames
- 🦷 Dentures & retainers
- ⌚ Watch straps & watch heads
- 🪒 Razors & grooming tools
- 🔩 Small metal parts, coins & keys
Specifications
| Model | SJ-W3 |
| Tank Capacity | 650ml |
| Tank Dimensions | 160 × 90 × 50 mm |
| Ultrasonic Frequency | 45 kHz |
| Power | 35W |
| Power Source | USB / Type-C |
| Timer Modes | 90s / 180s / 280s / 380s / 480s (5 modes) |
| Weight | 0.95 kg |
| Warranty | 1 Year |
| Country of Origin | Made in Mainland China |
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Learn more: EPA Safer Choice cleaning product guidance
Frequently Asked Questions
Q: What items can I clean in this 650ml ultrasonic cleaner?
A: The SJ-W3 ultrasonic cleaner is ideal for jewelry (rings, earrings, necklaces), eyeglasses, dentures, retainers, watch straps, razors, small metal parts, coins, and more. If it fits in the 650ml tank, chances are it can be ultrasonically cleaned with just water.
Q: Do I need special cleaning solution, or can I just use water?
A: Plain water works for most items. For heavily soiled jewelry or greasy parts, you can add a small drop of mild dish soap or a jewelry-specific cleaning concentrate. Avoid harsh solvents or bleach.
Q: How do the 5 timer modes work?
A: Simply press the mode button to cycle through the five preset cleaning durations — 90, 180, 280, 380, and 480 seconds. A digital display counts down so you always know how much time remains. Choose a shorter cycle for lightly soiled items and a longer cycle for more thorough cleaning.
Q: How is the ultrasonic cleaner powered?
A: The cleaner uses a standard USB / Type-C connection, so you can power it from a USB wall adapter, a laptop, or a portable power bank. No proprietary charger is included or required.
Q: Is this ultrasonic cleaner safe for all types of jewelry?
A: Ultrasonic cleaning is safe for most solid metal jewelry (gold, silver, stainless steel, platinum) and hard gemstones (diamonds, sapphires, rubies). It is generally not recommended for pearls, opals, emeralds, or items with loose settings. When in doubt, consult a jeweler before cleaning valuable or antique pieces.
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.