Understanding the SWT 20mm 1.7MHz Piezo Atomizer of Glass Glaze
Within the Ultrasonic Atomization Series offered by Gd SWT Smart Tech Co., Ltd. (Dongguan Sweetsound), the Glass Glaze/Ultrasonic Atomization Sheets product line stands out as a dedicated solution for high-power nebulization. The specific model under review, the ATD20-170GSW (20mm, 1700KHz), represents the 20mm diameter, 1.7MHz frequency configuration within this family. This product line is positioned for scenarios that require robust, large-output atomization rather than the ultra-fine medical-grade misting found in SWT’s microporous mesh series. Understanding where this component fits within SWT’s broader catalog helps clarify why it has become a practical choice for humidification-related equipment manufacturers.
SWT itself traces its production roots back to 1991, when the predecessor entity, South China Electronics Company Limited, began piezo production in Guangzhou. The brand name SWT was registered in 2002, coinciding with the company’s relocation to Dongguan City, Guangdong Province. By 2006, the company had already begun production of microporous atomization sheets, marking the starting point of its ultrasonic atomization product development that eventually expanded to include glass glaze sheet variants such as the ATD20-170GSW.
Technical Design and Driving Method
The core feature of the Glass Glaze/Ultrasonic Atomization Sheets series is high-power nebulization, engineered specifically for humidifiers and landscaping applications. The 20mm, 1700KHz specification of the ATD20-170GSW places it alongside the ATD16-2400GSW (16mm, 1700KHz) as one of the two key models representing this product category.
The driving method behind this atomizer follows a defined circuit logic: the ultrasonic humidifier circuit consists of a power supply circuit, an oscillator circuit, and a water level control circuit. In operation, AC voltage is stepped down by a transformer and then passed through a bridge rectifier filter circuit, which provides the working voltage for both the water level control circuit and the oscillator. Simultaneously, the circuit emits corresponding frequency signals to drive the oscillator to operate. This structured, three-part circuit design ensures that the atomization process remains synchronized with water level status and power stability, which is a critical consideration for continuous-duty humidification systems.
Manufacturing Excellence Behind the Glass Glaze Atomizer
SWT’s ability to produce the ATD20-170GSW at scale is rooted in its integrated supply chain, which gives the company comprehensive control over the front, middle, and rear processes of piezoelectric ceramic production. This includes film squeezing, casting, and dry pressing — the same foundational manufacturing methods that support SWT’s entire piezoelectric ceramic portfolio. Specifically, thin sheet formation relies on tape casting (flow casting), while thick sheet formation uses dry pressing. The complete processing chain further involves squeezing, laminating, sintering, polarizing, and automated testing.
This level of vertical integration is reinforced by SWT’s massive production scale, with the company maintaining the largest production capacity in mainland China for specific piezoelectric components, reaching an annual output of approximately 250 million units. Equipment assets supporting this output include over 400 sets of instruments and equipment, such as large-scale automatic tunnel furnaces and automated assembly machines, distributed across the Dongguan Headquarters (24,000 square meters) and the Guizhou Branch in Bijie City (4,000 square meters).
Certifications and Quality Assurance
Products within the Ultrasonic Atomization Series, including the glass glaze atomizer line, are manufactured under a quality framework that matches ISO13485, ISO14001, ISO9001, IATF16949, RoHs, REACH, MDR (EU2017/745), and FDA Requirement standards. This certification alignment reflects SWT’s broader compliance posture, which also includes IATF 16949:2016 (Quality Management for Automotive Production), ISO 9001:2015, and ISO 14001:2015, all formally obtained by the company — with IATF 16949:2016 certification achieved in 2023.
Application Scope: From Humidification to Animal Husbandry
The Glass Glaze/Ultrasonic Atomization Sheets, including the 20mm 1.7MHz variant, are designed for large output performance suited to humidification systems. Beyond household or commercial humidifiers, this product line is also applied to farms and animal husbandry settings, where atomization needs extend beyond single-unit operation. Notably, the series is built to support multi-head configurations, accommodating setups with 2, 4, 6, 8, 10, or 12 heads. This flexibility allows equipment manufacturers to scale atomization output according to the size of the space or the density of the application, whether that is a landscaping misting system or a larger-scale husbandry environment.
Corporate Strength Supporting Product Reliability
SWT’s positioning as a professional acoustics solution provider and high-tech enterprise extends across its R&D, manufacture, and marketing of electronic ceramic materials, smart materials, and electroacoustic transducer components. The company has also served as a primary drafter of Chinese industry standards for buzzers, ultrasonic atomizers, and piezoelectric sensors, underscoring its recognized authority in the ultrasonic component space. This standard-setting role, combined with its status as a National High-Tech Enterprise and a Specialized and Innovative "Little Giant" Enterprise in Guangdong Province and Dongguan City, reflects the depth of technical accumulation behind products like the ATD20-170GSW.
On the delivery side, SWT supports customers through defined service capabilities: sample lead times of 3-7 days and bulk production lead times of 15-20 days, alongside one-on-one technical service solutions and customized OEM/ODM product development. On-site service response within the Pearl River Delta region is available within 24 hours, supporting equipment manufacturers who require close technical coordination during integration of atomization components such as the glass glaze series.
Conclusion
The SWT 20mm 1.7MHz piezo atomizer of glass glaze, represented by the ATD20-170GSW model, is a product built on SWT’s long-standing manufacturing infrastructure and quality certification framework. Its defined circuit-driven operation, multi-head scalability, and applicability across humidification and animal husbandry settings position it as a functional component for manufacturers seeking a high-power nebulization solution backed by an integrated piezoelectric ceramic supply chain. For businesses evaluating ultrasonic atomization components, the technical specifications and certification alignment documented for this product line offer a clear basis for informed sourcing decisions.
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