{"product_id":"the-quiet-bath-ultrasonic-cleaner","title":"The Quiet Bath | 628ml Ultrasonic Cleaning Machine, 40kHz Stainless Tank","description":"\u003cp\u003eCleaning is a function of frequency. A brush reaches the surface; it cannot reach a watch bracelet pin, a denture clasp, or the twenty-micron gap under a circuit board component. An ultrasonic bath at 40kHz does not scrub at all. It drives cavitation: microscopic bubbles form in the liquid and collapse against the surface, lifting oil, polish residue and grime away without abrasion, without solvent, and without a single bristle touching the part.\u003c\/p\u003e\u003cp\u003eThe Quiet Bath is a 628ml stainless tank with a single button and a five-minute working cycle. That short cycle is deliberate. Cavitation is energetic, and parts that sit in it for half an hour lose more than they gain, especially soft stones and plated finishes. Five minutes at 30W to 50W is enough for a ring, a pair of glasses, a shaver head, dentures, a camera filter ring, or a board that failed a flux inspection, and the timer removes the temptation to overdo it.\u003c\/p\u003e\u003cp\u003eThe physical design solves the two annoyances of inexpensive baths. A stainless lid keeps the liquid from splashing out and slows evaporation between cycles, and four non-slip feet hold the chassis clear of the bench so water cannot wick into the housing. A vent hole in the base lets the driver board shed heat, which is the actual failure point on units that die within a year. The tank measures 168 by 42 by 89mm inside a 190 by 145 by 93mm body, so it occupies less bench space than a coffee mug footprint and a little more height.\u003c\/p\u003e\u003cp\u003eIt is not a jewelry-polishing machine and it does not remove scratches. It removes what should never have been left on the surface in the first place.\u003c\/p\u003e\u003cp\u003eLoading matters as much as frequency. Parts should sit in a basket or hang free with no two items touching, since contact points block cavitation and leave a visible line of untouched grime. Fill to the marked level, add a drop of surfactant, and run the bath for two minutes before introducing parts; this drives dissolved air out of the water, and degassed liquid cavitates far more aggressively than freshly poured tap water. Fragile items go in a beaker of solution standing in the bath, which isolates them from direct transducer energy while still cleaning by proxy.\u003c\/p\u003e\u003cdiv class=\"product-features\"\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;\"\u003e\n\u003cli\u003e✦ 40kHz cavitation cleaning without brushes, abrasion or harsh solvents\u003c\/li\u003e\n\u003cli\u003e✦ 628ml stainless steel tank sized for jewelry, eyewear, dentures and small parts\u003c\/li\u003e\n\u003cli\u003e✦ Single-button operation with a fixed five-minute working cycle\u003c\/li\u003e\n\u003cli\u003e✦ 30W to 50W transducer output across the model range\u003c\/li\u003e\n\u003cli\u003e✦ Stainless lid contains splash and slows evaporation between cycles\u003c\/li\u003e\n\u003cli\u003e✦ Four non-slip feet lift the chassis clear of standing water\u003c\/li\u003e\n\u003cli\u003e✦ Base vent keeps the driver board cool for longer service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-specs\"\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;\"\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eTank capacity:\u003c\/strong\u003e 628ml stainless steel\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eWorking frequency:\u003c\/strong\u003e 40kHz\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 30W to 50W depending on model\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eCycle time:\u003c\/strong\u003e approximately 5 minutes, single button\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eTank dimensions:\u003c\/strong\u003e 168 x 42 x 89mm\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eBody dimensions:\u003c\/strong\u003e 190 x 145 x 93mm\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e 110V US plug or 220V EU plug\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eLid:\u003c\/strong\u003e stainless steel, splash and evaporation control\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e four non-slip feet with heat vent\u003c\/li\u003e\n\u003cli style=\"border-bottom:1px solid #eee;padding:9px 0;\"\u003e\n\u003cstrong\u003eCompatible items:\u003c\/strong\u003e jewelry, eyewear, dentures, shaver heads, circuit boards, small instruments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-applications\"\u003e\n\u003ch3\u003eApplication Scenarios\u003c\/h3\u003e\n\u003cp\u003eOptical counters use it to lift skin oil off frame nose pads and temple tips before an adjustment. Jewelry retailers run a five-minute cycle before a customer tries on a ring, which turns a hygiene step into a presentation moment. Repair benches clean flux from small boards and connector housings where a brush would spread contamination. Dental and tattoo studios clean removable appliances and small stainless instruments as a pre-step before proper sterilization. Watch collectors use it on bracelets and cases, never on the movement itself.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\"\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I clean a whole mechanical watch in it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: No. Submerge the bracelet and case only, with the movement removed or the watch kept above the liquid line. Cavitation can displace lubricants inside an assembled movement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What liquid should I use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Warm tap water with a drop of dish soap covers most jobs. Use distilled water for optical parts and a dedicated ultrasonic solution for circuit boards where residue must not conduct.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will it damage soft or plated stones?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: It can. Opals, pearls, emeralds with fractures and thin plating should not go in. When in doubt, run a thirty-second test on an inconspicuous area first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why does the unit stop after five minutes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The fixed cycle protects the transducer and the parts. Repeat the cycle for heavy buildup rather than running continuously, and let the unit rest between long sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How often should I change the water?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Every session for biological items, and every two or three sessions for metal and glass. Empty, dry and wipe the tank after use to prevent mineral rings and rust at the seams.\u003c\/p\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why do my parts look dull after cleaning?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Overexposure. Plated finishes and soft alloys pit when cavitation runs too long. Reduce to one cycle, use a beaker to soften the energy, and avoid any acidic additive.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I clean more than one item at once?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, provided nothing touches. Cavitation needs liquid contact on every surface. Stacked rings or nested glasses will show contact shadows where the surfaces met.\u003c\/p\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why do my parts look dull after cleaning?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Overexposure. Plated finishes and soft alloys pit when cavitation runs too long. Reduce to one cycle, use a beaker to soften the energy, and avoid any acidic additive.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:15px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can I clean more than one item at once?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, provided nothing touches. Cavitation needs liquid contact on every surface. Stacked rings or nested glasses will show contact shadows where the surfaces met.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-promise\"\u003e\n\u003ch3\u003eThe EastSupplier Promise\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;\"\u003e\n\u003cli style=\"padding:7px 0;\"\u003e✦ Every unit inspected before dispatch, with the specifications listed on this page checked against the shipped item.\u003c\/li\u003e\n\u003cli style=\"padding:7px 0;\"\u003e✦ Tracked international shipping with a dispatch window confirmed at checkout.\u003c\/li\u003e\n\u003cli style=\"padding:7px 0;\"\u003e✦ Direct replacement for units that arrive damaged or fail within the warranty period, handled by message rather than by form.\u003c\/li\u003e\n\u003cli style=\"padding:7px 0;\"\u003e✦ Sourcing support for bulk and repeat orders, including consolidated shipping and custom quantity pricing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-gallery\" style=\"margin-top:30px;text-align:center;\"\u003e\n\u003ch3\u003eProduct Gallery\u003c\/h3\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sd3fd1cd7634c4a148eeafb5b21db4125u.webp?v=1710642546\" alt=\"The Quiet Bath | 628ml Ultrasonic Cleaning Machine, 40kHz Stainless Tank - view 1\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S2b6b7a96767d4dd6b1672fb8214d90042.webp?v=1710642547\" alt=\"The Quiet Bath | 628ml Ultrasonic Cleaning Machine, 40kHz Stainless Tank - view 2\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/See4a74e298194b85a7a123089319a7f8b.webp?v=1710642547\" alt=\"The Quiet Bath | 628ml Ultrasonic Cleaning Machine, 40kHz Stainless Tank - view 3\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S66626a586d8a4cd294982fdc3048dce52.webp?v=1710642547\" alt=\"The Quiet Bath | 628ml Ultrasonic Cleaning Machine, 40kHz Stainless Tank - view 4\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sb84b8a34c4de414899d746ef1c4ab3cf4.webp?v=1710642548\" alt=\"The Quiet Bath | 628ml Ultrasonic Cleaning Machine, 40kHz Stainless Tank - view 5\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S9f42b7bb9d4641e184276582666167c91.webp?v=1710642547\" alt=\"The Quiet Bath | 628ml Ultrasonic Cleaning Machine, 40kHz Stainless Tank - view 6\" loading=\"lazy\" style=\"max-width:100%;margin:0 0 12px;border-radius:6px;\"\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Product\", \"name\": \"The Quiet Bath | 628ml Ultrasonic Cleaning Machine, 40kHz Stainless Tank\", \"sku\": \"8393780330719\", \"description\": \"628ml ultrasonic cleaning machine at 40kHz with stainless tank, 5-minute cycle and 30 to 50W output. 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