What does a LeelaSonic ultrasonic jewellery cleaner do? It uses high-frequency sound waves (33–40 kHz) to create microscopic cavitation bubbles that lift dirt, skin oils, polishing rouge and embedded grime from gold, silver, platinum and diamond jewellery — including inside settings, prongs and filigree — in 3 to 10 minutes without scratching or abrasion.
How Ultrasonic Cleaning Works for Jewellery
The tank produces millions of microscopic vacuum bubbles per second through ultrasonic cavitation. When these bubbles collapse against jewellery surfaces, they create intense localised cleaning action that reaches inside prong settings, chains, engraving grooves and filigree where no brush can go — without contact, scratching or abrasion.
Technical Specifications
| Capacity | 2 Litres, 3.5 Litres, 6 Litres, 10 Litres |
|---|---|
| Frequency | 33 kHz / 40 kHz (gentle, jewellery-safe) |
| Tank Material | Stainless Steel 304 (die-pressed, seamless) |
| Heater | Preset 50°C / Digital control (model dependent) |
| Timer | 0–20 Minutes Digital Timer |
| Body | Stainless Steel housing |
| Price Range | ₹5,500 – ₹45,000 (factory direct) |
Ultrasonic vs Manual Jewellery Cleaning
| Factor | Ultrasonic | Manual Brush |
|---|---|---|
| Reaches under settings | ✓ Yes | ✗ No |
| Risk of scratching | ✓ None | ✗ Possible |
| Cleaning time | ✓ 3–10 min | ✗ 20–30 min |
| Consistent results | ✓ Every cycle | ✗ Varies |
| Suitable for filigree | ✓ Yes | ✗ Difficult |
Ultrasonic Jewellery Cleaner & Polishing Machine
LeelaSonic manufactures a commercial ultrasonic jewellery cleaning machine for jewellery showrooms, goldsmiths, diamond traders and manufacturing workshops across India. Our machines deliver professional-grade sparkling results in minutes — far faster and safer than manual brushing.
Jewellery accumulates skin oils, dust, lotion residue and — in goldsmith workshops — polishing compounds (rouge) that embed into settings and chains over time. Manual brushing cannot remove contamination trapped inside prong settings, diamond pavé, box chains or engraved surfaces. Ultrasonic cavitation reaches everywhere a brush cannot, lifting contamination without any contact or risk of surface damage.
Applications
- Jewellery Showrooms: Daily cleaning of gold, silver and diamond stock to maintain sparkle for display and customer try-on.
- Goldsmith Workshops: Removing buffing rouge (polishing compound) from finished pieces after polishing — the most common use in manufacturing.
- Diamond & Gem Traders: Cleaning loose and mounted stones before grading, inspection or sale to restore their natural brilliance.
- Jewellery Repair Centres: Pre- and post-repair cleaning to inspect solder joins and ensure a clean finish before customer handover.
- Dental Clinics & Labs: Cleaning dentures, partial plates, retainers and mouthguards — removing plaque, tartar and adhesive residues.
- Optical & Watch Retailers: Cleaning spectacle frames and metal watch bracelets without disassembly.
What Metals and Stones Are Safe?
- Gold (all karats): Safe — yellow, white and rose gold.
- Silver: Safe — removes tarnish and oxidation effectively.
- Platinum: Safe — excellent for intricate platinum settings.
- Diamonds: Safe — restores maximum brilliance.
- Rubies & Sapphires: Safe for untreated natural stones.
- Pearls, Opals, Emeralds: ⚠ Avoid — soft, porous or treated stones can be damaged.
- Loose or cracked settings: ⚠ Inspect before cleaning — ultrasonic action can dislodge already-loose stones.
How to Clean Jewellery — Step by Step
Fill the tank
Add warm water and a few drops of mild jewellery cleaning solution or dish soap. Fill below the max line. For workshop rouge removal, use a dedicated alkaline degreaser.
Pre-inspect items
Check for loose stones or cracked prongs before placing items in the basket. Remove any pearls, opals or soft stones.
Set temperature and timer
Set heater to 40–50°C. Set the timer to 3–5 minutes for lightly soiled pieces, 5–10 minutes for heavily soiled workshop pieces.
Run the cleaning cycle
Place the basket with jewellery in the tank and start the machine. Cavitation action works on all surfaces simultaneously — no manual scrubbing needed.
Rinse and dry
Remove basket, rinse items under clean water and dry with a soft lint-free cloth. Inspect under light — repeat if needed for heavily soiled pieces.
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View Sonicator BathFor correct model selection, share your typical items, batch size and whether you need rouge removal (workshop) or daily showroom cleaning. Call +91-98205-74207 or get a quote online.
Frequently Asked Questions
Yes — ultrasonic cleaning is safe for diamonds, rubies, sapphires, gold, silver and platinum. Avoid ultrasonic cleaning for soft or porous stones such as pearls, emeralds, opals, turquoise and coral, or for items with cracked or loose settings.
For daily showroom cleaning, warm water with a mild jewellery cleaning solution or a few drops of dish soap works well. For goldsmith workshops removing polishing rouge (buffing compound), use a dedicated alkaline degreaser solution. Always rinse thoroughly after cleaning.
Most jewellery pieces clean in 3 to 10 minutes. Lightly soiled daily-wear jewellery typically takes 3–5 minutes. Heavily soiled workshop pieces with embedded polishing compound may need 5–10 minutes or a repeat cycle.
Yes. Ultrasonic cleaning is very effective for silver — it removes tarnish, oil and oxidation from filigree, chains and engraved surfaces faster than manual polishing. Use a suitable silver-safe cleaning solution for best results.
For a jewellery showroom cleaning a few pieces at a time, a 2L or 3.5L model is typically sufficient. For a goldsmith workshop cleaning multiple pieces or larger items simultaneously, a 6L or 10L model is more appropriate.
Yes. LeelaSonic ultrasonic jewellery cleaners work effectively as denture cleaners for dental labs and clinics, removing plaque, tartar and adhesives from dentures, retainers and mouthguards in minutes.