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A 330ml jewellery cleaner built on stainless steel, not painted plastic, for a tank that won't scratch or discolour

47kHz ultrasonic cleaning in a SUS304 stainless steel tank with a transparent lid, sized for rings, watches and everyday jewellery care.

Phniti's cleaner runs three timer modes across a 330ml SUS304 stainless steel tank, chosen specifically because the housing material affects both durability and how safely it holds water and cleaning solution over repeated use.

£53.98 inc. VAT
Fast, FREE United Kingdom delivery on all orders £40 or more. Orders under £40 pay a flat £4.99 delivery.

Phniti ultrasonic jewellery cleaner, 47kHz, 330ml SUS304 stainless steel tank. Three timer modes and an auto-shutoff LED display.

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SUS304 Stainless Steel TankA food-grade stainless alloy chosen for durability and resistance to corrosion from cleaning solutions.
Three Timer Modes300, 450 and 600-second cycles to match cleaning time to how dirty the item is.
Transparent CoverWatch the cleaning process without needing to open the lid mid-cycle.

Phniti Ultrasonic Jewellery Cleaner 47kHz

Phniti built the tank itself as the differentiator: SUS304 stainless steel rather than a coated or painted metal, chosen because it resists the corrosion that cleaning solution and repeated water exposure cause in lower-grade materials over months of regular use.

The 47kHz ultrasonic wave runs across three selectable cycles — 300, 450 and 600 seconds — long enough to match cleaning time to how dirty the item actually is rather than running one fixed cycle for a lightly-worn ring and a heavily tarnished chain alike.

At £53.98, it's one of the more affordable dedicated jewellery cleaners on this site, and the ABS housing around the stainless tank keeps the unit itself lightweight without compromising the part that actually holds the cleaning solution.

Specifications

BrandPhniti
Frequency47kHz
Tank Capacity330ml
CategoryJewellery & Watch Cleaners
Country of OriginChina

Phniti Ultrasonic Jewellery Cleaner 47kHz

£53.98 inc. VAT

Free United Kingdom delivery · easy returns · secure checkout

Frequently Asked Questions

Why does the tank material matter?

SUS304 stainless steel resists the corrosion that cleaning solution and hard water can cause in lower-grade or coated metal tanks over repeated use, extending the practical lifespan of the tank itself.

What do the three timer modes cover?

300 seconds for light daily buildup, 450 seconds for moderate dirt, and 600 seconds for heavier tarnish or grime — the LED screen counts down and shuts off automatically at the end.

Is it safe for all types of jewellery?

It is safe for most solid metals including gold, silver and platinum-set pieces; very soft or porous stones (opals, pearls, some emeralds) are generally better cleaned by hand, a caution that applies across ultrasonic cleaners generally, not just this one.

Does it need cleaning solution, or does water work?

Tap water alone will clean most items; adding a small amount of jewellery-safe detergent to the water improves results on heavier tarnish or oil residue.

Can I see the item while it cleans?

Yes — the transparent cover lets you watch the cleaning cycle without opening the lid, which also keeps water from escaping mid-cycle.

What does delivery cost and how long does it take?

Delivery cost and an estimated timescale for your address are calculated at checkout, before you pay. Free UK delivery applies over the qualifying order value.

Can I return this if it is not right for me?

Yes — return it unused, with the original packaging where possible, under our returns policy for an exchange or refund.

Which jewellery is actually safe to clean ultrasonically

3 min read Sonique

Ultrasonic cleaning is safe for the majority of jewellery — solid gold, silver, platinum, and most cut gemstones like diamonds, sapphires and rubies handle the cavitation process without issue. The exceptions are porous or structurally soft materials: pearls, opals, turquoise and emeralds (which are often treated with oil or resin to fill internal fractures) can be damaged by the vibration or by the cleaning solution stripping their treatment. Coated or plated jewellery is generally fine for occasional cleaning but shouldn't go through daily cycles, since repeated cavitation can gradually wear thin plating. When in doubt about a specific piece, a quick check with a jeweller before its first ultrasonic clean is the safer route.

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Page summary

Phniti Ultrasonic Jewellery Cleaner 47kHz is a jewellery ultrasonic cleaner from Phniti, priced at £53.98 GBP with a 4.2-star rating from 1784 reviews on Amazon UK. Tank capacity: 330ml. Frequency: 47kHz.

Phniti Ultrasonic Jewellery Cleaner 47kHz £53.98