{"product_id":"granbo-4-8l-multi-frequency-ultrasonic-cleaner-28-33-40khz-mute","title":"Granbo 4.8L Multi-Frequency Ultrasonic Cleaner 28\/33\/40KHz","description":"\n\u003ch2\u003eGranbo 4.8L Multi-Frequency Ultrasonic Cleaning Machine | 28\/33\/40KHz | Quiet Operation\u003c\/h2\u003e\n\n\u003cp\u003eMeet the \u003cstrong\u003eGranbosonic GL0205\u003c\/strong\u003e — a professional-grade, 4.8-litre ultrasonic cleaner engineered for labs, clinics, jewellers, and workshops that demand thorough, consistent cleaning with minimal noise. Three selectable ultrasonic frequencies (28, 33, and 40 kHz), a sound-insulated housing, and a corrosion-resistant stainless steel tank make this machine a true workhorse for both delicate instruments and heavy-duty components.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eWhy Choose the Granbosonic GL0205?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThree Switchable Frequencies (28 \/ 33 \/ 40 kHz)\u003c\/strong\u003e — Choose 28 kHz for robust parts, 33 kHz for general-purpose use, or 40 kHz for delicate items like jewellery, optical lenses, and circuit boards. ±1 kHz sweep frequency ensures even cavitation across the entire tank.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWhisper-Quiet Mute Design\u003c\/strong\u003e — The unit is wrapped in sound-insulation cotton, dramatically reducing operating noise — ideal for dental surgeries, optical labs, university labs, and shared workspaces.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e4.8L Stainless Steel Tank (240 × 135 × 150 mm)\u003c\/strong\u003e — Corrosion-resistant construction handles a wide range of cleaning solutions. Large enough for professional batch cleaning runs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePulse Mode\u003c\/strong\u003e — Activates alternating high-intensity bursts for extra cleaning power on stubborn residue, without damaging sensitive parts.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e300W Digital Heating System\u003c\/strong\u003e — Built-in heater with precise temperature control ensures optimal cleaning solution performance. Typical steam-cycle duration: 10–15 minutes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100W Ultrasonic Power\u003c\/strong\u003e — Efficient transducers deliver consistent cavitation energy throughout every cycle.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Voltage (110V \/ 220V)\u003c\/strong\u003e — Ready to use worldwide straight out of the box.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoHS \u0026amp; CE Certified\u003c\/strong\u003e — Meets international safety and environmental standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrequency Customisation Supported\u003c\/strong\u003e — Can be tailored to specific industrial or research frequency requirements on request.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eWide Range of Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e🔬 \u003cstrong\u003eLab \u0026amp; Research\u003c\/strong\u003e — Glassware, pipettes, micro-instruments\u003c\/li\u003e\n  \u003cli\u003e💎 \u003cstrong\u003eJewellery \u0026amp; Watches\u003c\/strong\u003e — Rings, chains, watch movements, bracelets\u003c\/li\u003e\n  \u003cli\u003e🦷 \u003cstrong\u003eDental \u0026amp; Medical Tools\u003c\/strong\u003e — Handpieces, mirrors, scalers, forceps\u003c\/li\u003e\n  \u003cli\u003e⚙️ \u003cstrong\u003eAuto \u0026amp; Industrial Parts\u003c\/strong\u003e — Carburettors, injectors, gears, bearings\u003c\/li\u003e\n  \u003cli\u003e🔌 \u003cstrong\u003eElectronics\u003c\/strong\u003e — PCBs, connectors, precision sensors\u003c\/li\u003e\n  \u003cli\u003e👓 \u003cstrong\u003eOptics\u003c\/strong\u003e — Lenses, frames, microscope components\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eFull Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGL0205\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTank Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.8 L\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTank Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e240 × 135 × 150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUnit Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e265 × 165 × 330 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUltrasonic Frequencies\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e28 \/ 33 \/ 40 kHz (±1 kHz sweep)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUltrasonic Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeating Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300W\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e110V \/ 220V\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePulse Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMute Design\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSound insulation cotton\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSteam Duration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10–15 minutes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCertifications\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRoHS, CE\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMainland China\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/nitrile-work-gloves-anti-slip-full-finger-5-pair\"\u003e5-Pair Nitrile Work Gloves – Anti-Slip Full Finger Safety\u003c\/a\u003e — Protect your hands when handling parts before and after cleaning.\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/10-pack-65mm-oscillating-multi-tool-saw-blades-high-carbon-steel\"\u003e10-Pack 65mm Oscillating Multi-Tool Saw Blades | Carbon Steel\u003c\/a\u003e — Keep your workshop toolset complete.\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/adjustable-woodworking-compass-layout-gauge-carpenter\"\u003eAdjustable Woodworking Compass Layout Gauge for Carpenters\u003c\/a\u003e — Precision tools for your workspace.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.epa.gov\/pesticide-registration\/selected-epa-registered-disinfectants\" target=\"_blank\" rel=\"noopener\"\u003eEPA registered disinfectants\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\n\u003ch4\u003eQ: What is the difference between the 28 kHz, 33 kHz, and 40 kHz frequency settings on this ultrasonic cleaner?\u003c\/h4\u003e\n\u003cp\u003eA: Each frequency produces a different cavitation bubble size. The \u003cstrong\u003e28 kHz\u003c\/strong\u003e setting generates larger, more aggressive bubbles suited to robust metal parts, auto components, and heavily soiled items. \u003cstrong\u003e33 kHz\u003c\/strong\u003e is a versatile mid-range setting for general workshop and lab use. \u003cstrong\u003e40 kHz\u003c\/strong\u003e produces finer, gentler bubbles ideal for delicate items such as jewellery, optical lenses, watch movements, and printed circuit boards. Matching the frequency to the item type ensures thorough cleaning without surface damage.\u003c\/p\u003e\n\n\u003ch4\u003eQ: How quiet is the mute design in practice?\u003c\/h4\u003e\n\u003cp\u003eA: The GL0205 is lined internally with sound-insulation cotton, which noticeably dampens the high-frequency vibration noise common in standard ultrasonic cleaners. While no ultrasonic cleaner is completely silent, this model is well suited to noise-sensitive environments such as dental surgeries, optical labs, and shared office spaces.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this cleaner compatible with standard cleaning solutions and tap water?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The stainless steel tank is compatible with tap water, distilled water, and most commercially available ultrasonic cleaning concentrates. For best results, use a purpose-formulated cleaning solution appropriate for the items being cleaned (e.g. jewellery cleaner, electronics flux remover, or general degreaser). Always follow the solution manufacturer's dilution guidelines.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can I use this machine on 110V power supplies (e.g. in the USA)?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. The Granbosonic GL0205 supports both 110V and 220V input voltages, making it universally compatible for use in North America, Europe, Australia, and most other regions without requiring a separate voltage converter.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What does Pulse Mode do?\u003c\/h4\u003e\n\u003cp\u003eA: Pulse Mode alternates the ultrasonic power output in rapid bursts rather than running continuously. This creates turbulence within the tank that can dislodge stubborn contaminants more effectively than standard continuous mode, while still being gentle enough for precision components.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the difference between the 28 kHz, 33 kHz, and 40 kHz frequency settings on this ultrasonic cleaner?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Each frequency produces a different cavitation bubble size. The 28 kHz setting generates larger, more aggressive bubbles suited to robust metal parts, auto components, and heavily soiled items. 33 kHz is a versatile mid-range setting for general workshop and lab use. 40 kHz produces finer, gentler bubbles ideal for delicate items such as jewellery, optical lenses, watch movements, and printed circuit boards. Matching the frequency to the item type ensures thorough cleaning without surface damage.\"}}, {\"@type\": \"Question\", \"name\": \"How quiet is the mute design in practice?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The GL0205 is lined internally with sound-insulation cotton, which noticeably dampens the high-frequency vibration noise common in standard ultrasonic cleaners. While no ultrasonic cleaner is completely silent, this model is well suited to noise-sensitive environments such as dental surgeries, optical labs, and shared office spaces.\"}}, {\"@type\": \"Question\", \"name\": \"Is this cleaner compatible with standard cleaning solutions and tap water?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The stainless steel tank is compatible with tap water, distilled water, and most commercially available ultrasonic cleaning concentrates. For best results, use a purpose-formulated cleaning solution appropriate for the items being cleaned (e.g. jewellery cleaner, electronics flux remover, or general degreaser). Always follow the solution manufacturer's dilution guidelines.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use this machine on 110V power supplies (e.g. in the USA)?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Absolutely. The Granbosonic GL0205 supports both 110V and 220V input voltages, making it universally compatible for use in North America, Europe, Australia, and most other regions without requiring a separate voltage converter.\"}}, {\"@type\": \"Question\", \"name\": \"What does Pulse Mode do?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Pulse Mode alternates the ultrasonic power output in rapid bursts rather than running continuously. This creates turbulence within the tank that can dislodge stubborn contaminants more effectively than standard continuous mode, while still being gentle enough for precision components.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/wb8bmu-rg.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/wb8bmu-rg.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Granbo 4.8L Multi-Frequency Ultrasonic Cleaner 28\/33\/40KHz\", \"item\": \"https:\/\/wb8bmu-rg.myshopify.com\/products\/granbo-4-8l-multi-frequency-ultrasonic-cleaner-28-33-40khz-mute\"}]}\u003c\/script\u003e","brand":"XPND","offers":[{"title":"28KHz \/ UK","offer_id":67774997922029,"sku":"14:29#28KHz;200009209:200660851","price":1229.34,"currency_code":"USD","in_stock":true},{"title":"28KHz \/ AU","offer_id":67774997954797,"sku":"14:29#28KHz;200009209:200660852","price":1229.34,"currency_code":"USD","in_stock":true},{"title":"33KHz \/ US","offer_id":67774997987565,"sku":"14:366#33KHz;200009209:200660849","price":1298.84,"currency_code":"USD","in_stock":true},{"title":"33KHz \/ EU","offer_id":67774998020333,"sku":"14:366#33KHz;200009209:200660850","price":1298.84,"currency_code":"USD","in_stock":true},{"title":"33KHz \/ UK","offer_id":67774998053101,"sku":"14:366#33KHz;200009209:200660851","price":1298.84,"currency_code":"USD","in_stock":true},{"title":"33KHz \/ AU","offer_id":67774998085869,"sku":"14:366#33KHz;200009209:200660852","price":1298.84,"currency_code":"USD","in_stock":true},{"title":"40KHz \/ US","offer_id":67774998118637,"sku":"14:10#40KHz;200009209:200660849","price":1170.27,"currency_code":"USD","in_stock":true},{"title":"40KHz \/ EU","offer_id":67774998151405,"sku":"14:10#40KHz;200009209:200660850","price":1170.27,"currency_code":"USD","in_stock":true},{"title":"40KHz \/ UK","offer_id":67774998184173,"sku":"14:10#40KHz;200009209:200660851","price":1170.27,"currency_code":"USD","in_stock":true},{"title":"40KHz \/ AU","offer_id":67774998216941,"sku":"14:10#40KHz;200009209:200660852","price":1170.27,"currency_code":"USD","in_stock":true},{"title":"28 40KHz dual frq \/ US","offer_id":67774998249709,"sku":"14:175#28 40KHz dual frq;200009209:200660849","price":1972.97,"currency_code":"USD","in_stock":true},{"title":"28 40KHz dual frq \/ EU","offer_id":67774998282477,"sku":"14:175#28 40KHz dual frq;200009209:200660850","price":1972.97,"currency_code":"USD","in_stock":true},{"title":"28 40KHz dual frq \/ UK","offer_id":67774998315245,"sku":"14:175#28 40KHz dual frq;200009209:200660851","price":1972.97,"currency_code":"USD","in_stock":true},{"title":"28 40KHz dual frq \/ AU","offer_id":67774998348013,"sku":"14:175#28 40KHz dual frq;200009209:200660852","price":1972.97,"currency_code":"USD","in_stock":true},{"title":"28KHz \/ US","offer_id":67774998380781,"sku":"14:29#28KHz;200009209:200660849","price":1229.34,"currency_code":"USD","in_stock":true},{"title":"28KHz \/ EU","offer_id":67774998413549,"sku":"14:29#28KHz;200009209:200660850","price":1229.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0840\/1269\/5789\/files\/S5e5f6897d7684ee6ab0c10da573e747dV.webp?v=1791995438","url":"https:\/\/xpndservice.com\/products\/granbo-4-8l-multi-frequency-ultrasonic-cleaner-28-33-40khz-mute","provider":"XPND","version":"1.0","type":"link"}