220V / 240V supply only. This unit requires higher-voltage supply (220V / 240V). Plugging it into a standard North American 110V / 120V outlet will prevent it from running properly. Confirm your outlet voltage before powering on.
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The Best Built SD-330HT 3/4 Gallon Pro Ultrasonic – 220V Money Saving Kit delivers professional-grade ultrasonic cleaning power for busy jewelry shops that demand fast, thorough results. Designed for countries with standard 220V power — or shops equipped with 220V outlets — this unit ships with a standard North American plug and requires a local outlet adapter.
In side-by-side aluminum foil testing, the Best Built line outperformed competing ultrasonics, producing noticeably more cavitation holes — a clear indicator of superior cleaning power. Industrial-grade transducers running at 40 kHz and 100 watts drive cleaning solution into every recessed corner, removing polishing compounds and grime quickly and completely.
The SD-330HT features a thermostatically adjustable heater (86°F–185°F / 30°C–85°C), a 0–30 minute timer, and illuminated on/off switches — all controlled by German-made analog controls that are straightforward to operate and service. The tank and housing are stainless steel construction throughout, and a stainless steel lid is included.
German-made timers and switches with illuminated on/off controls
Stainless steel tank, housing, and lid
220V operation — supplied with standard North American plug (local outlet adapter required)
1-year manufacturer's warranty; 2-year warranty on transducers
Specifications
Model
SD-330HT
Voltage
220V
Frequency
40 kHz
Power
100 watts
Capacity
3.5 qt / 3.3 L / 0.86 gal
Tank Dimensions
9-3/8" L × 5-1/2" W × 3-7/8" deep
Overall Dimensions
11-1/2" L × 6-1/2" W × 10" deep
Temperature Range
86°F–185°F (30°C–85°C)
Timer Range
0–30 minutes
Sound Level
90 dB
Construction
Stainless steel
What's Included
Best Built SD-330HT 220V Ultrasonic Cleaner with stainless steel lid
123.663CLIP – Stainless Steel Basket (handles should be bent so basket bottom does not contact tank bottom)
123.627 – Black PVC Coating Single Rack (should be bent so hooks are submerged in the bath)
123.620 – Small Parts Cleaning Basket, Spring Type
145.505 – TivaClean Cleaning Powder
Notes
Do not place items directly on the tank bottom — contact with the bottom can damage the transducer and will void the warranty.
Always use a non-ammoniated, non-flammable ultrasonic cleaning solution; do not operate with plain water alone.
Keep solution level at 7/8 capacity for best performance; never operate below 3/4 full.
Allow the ultrasonic to run (degas) for a few minutes before cleaning. 95% of cleaning occurs in the first 30 seconds.
Do not operate in continuous mode for extended periods; prolonged exposure can damage items.
Safe for gold, silver, platinum, diamonds, rubies, sapphires, amethyst, and citrine. Not recommended for emeralds, opals, turquoise, pearls, amber, or ivory.
Ultrasonics do not remove tarnish.
Do not submerge watches. Only the metal band should enter the solution, with the watch head suspended above the water line.
The included basket accessories are designed to be bent or modified to fit the tank properly.
California Prop 65 Warning: