Ultrasonic Machine 800ML Jewelry Cleaner 40kHz - Precise Digital Timer

In this review the Ultrasonic Machine 800ML jewelry cleaner proves to be a compact, practical option for anyone who needs reliable small-part cleaning. Its single biggest reason to buy is the combination of a strong 40kHz ultrasonic frequency and a manageable 800ML tank that removes grime from delicate items without aggressive handling. The machine is aimed at hobbyists, optical technicians, dental labs with small workloads, and homeowners who want a better clean for jewelry, glasses, and small metal parts.

Key Features

• 40kHz Ultrasonic Frequency: Delivers consistent cavitation that loosens dirt and contaminants from intricate surfaces and small crevices.
• 35W Power: Provides efficient cleaning action for delicate items without requiring excessive run time.
• 800ML Stainless Steel Tank: The 304 stainless tank resists corrosion and fits rings, glasses, watch parts, and dental pieces while remaining durable over time.
• Degas Mode: Removes gas from the liquid to improve cleaning efficiency and protect sensitive samples or small components.
• LED Digital Timer: Time settings from 0 to 30 minutes give precise control so users can match cycle length to the item and soil level.
• Secure Transducer Bonding: A high-strength adhesive keeps the vibrating head firmly attached so the unit runs reliably without the transducer coming loose.

Who It's For

This ultrasonic cleaner is well suited for jewelry makers, eyeglass shops, hobbyists who clean small metal parts, and dental technicians who need a compact unit for dentures and oral irrigator parts. The size and materials make it convenient for bench use and occasional lab tasks without taking excessive space.

Those who need heated cleaning, industrial-scale throughput, or continuous heavy-duty cycles should look elsewhere; this model has no heating function and is optimized for small batches and delicate items rather than high-volume industrial use.

Pros & Cons

Pros

• Strong cleaning performance from the 40kHz frequency that handles fine details on jewelry and optics.
• Durable 304 stainless steel tank with a practical 800ML capacity that fits common small items.
• Useful degas mode and a precise LED digital timer for controlled cycles and better cleaning efficiency.
• Compact footprint and solid build quality that users reported as good value for money.

Cons

• Mixed feedback on noise level; some users find the unit noisy during operation.
• No heating function, which means certain cleaning tasks may require manual warming of the solution.

Specifications

Brand	granbo
Ultrasonic Frequency	40kHz
Power	35W
Tank Capacity	800ML
Tank Size	5.9 in x 3.4 in x 2.6 in
Tank Material	304 stainless steel
Timer	LED digital, 0-30 minutes

Our Verdict

The Ultrasonic Machine 800ML is a sensible choice for anyone needing an affordable, reliable cleaner for jewelry, glasses, watch parts, and small dental pieces. It offers strong cleaning power in a compact package, sensible controls, and a durable stainless tank, making it good value for light professional or dedicated home use.

Frequently Asked Questions

Does this unit heat the cleaning solution?
The unit does not include a heating function; it relies on ultrasonic action and a degas mode for improved cleaning.

What items can safely be cleaned?
Suitable items include jewelry, eyeglasses, watch parts, circuit boards, dentures, and other small metal or glass parts that tolerate immersion and ultrasonic cleaning.

How long are typical cleaning cycles?
Use the LED timer to set cycles up to 30 minutes; many delicate items are clean within a few minutes, while heavier soils may need longer single cycles.