Homepage Navigation Framework — Piezo Buzzer 27mm | Gd SWT Smart Tech Co., Ltd.
1. Company Profile
- About SWT — 30+ Years of Piezo Buzzer 27mm Manufacturing Heritage
- Founded 1991, headquartered in Dongguan City, Guangdong Province, China
- Brand "SWT" registered 2002; Listed on Board Beijing, 2016
- High-tech joint-equity enterprise and Specialized & Innovative SME
- Mission: Piezoelectric ceramic, ultrasonic, and electroacoustic solutions for global industries
- Global Presence & Production Scale
- Dongguan Headquarters: 24,000 sqm, 170 staff
- Guizhou Branch (Bijie City): 4,000 sqm, 40 staff
- Over 400 sets of instruments including automatic tunnel furnaces
- Annual output: ~250 million piezoelectric ceramic units, including piezo buzzer 27mm series
2. Certifications & Credentials
- Quality & Automotive-Grade Standards
- IATF 16949:2016 (Automotive Quality Management, obtained 2023)
- ISO 9001:2015 Quality Management System
- ISO 14001:2015 Environmental Management System
- RoHS and REACH Compliance across all piezo buzzer 27mm and related products
- Industry Authority & Standard-Setting
- Primary drafter of Chinese national standards for "Piezoelectric Sounders and Piezoelectric Buzzers"
- Drafter of "Electromagnetic Sounders and Electromagnetic Buzzers" standards
- Official recognition from the Quality and Technical Supervision Bureau of Guangdong Province
- Honors & Intellectual Property
- National High-Tech Enterprise (China)
- Specialized and Innovative "Little Giant" Enterprise (Guangdong Province & Dongguan City)
- National Patent Award (Excellence Award); Dongguan Excellent Patent Award
- 42 certified patents, including 9 invention patents
- Ranking top 3 within the piezoelectric component industry
3. Product Categories — Piezo Buzzer 27mm & Related Piezoelectric Ceramic Elements
- Piezoelectric Diaphragms & Discs (Featuring Piezo Buzzer 27mm)
- Ultra-thin design with low power consumption and stable frequency output
- Soft and hard ceramic material options; single-sided and double-sided electrode patterns
- Key Model: 3S27+3.9EA (27mm) — the flagship piezo buzzer 27mm diaphragm for signaling applications
- Related sizes: 3B12+9.0TEAWC (12mm), 3B35+2.6EA (35mm)
- Buzzer & Alarm Series
- SMD/SMT Buzzers: reflow-soldering compatible, high sound pressure level
- Key Models: PSE1230+4003SA (3V), MS7525+2705SA (5V)
- Active & Passive Buzzers (Magnetic & Piezo): internal or external drive circuit options
- Applications: automotive seatbelt reminders, smoke alarms, household appliances
- SMD/SMT Buzzers: reflow-soldering compatible, high sound pressure level
- Ultrasonic Atomization Series
- Microporous Mesh Atomizers (Piezo Mesh): medical-grade particle sizes 2–5μm
- World's smallest piezo atomizer at 8mm diameter
- Key Models: ATC16-0108SDWKI (16mm), ATC08-0210SDWF (8mm)
- Glass Glaze/Ultrasonic Atomization Sheets for humidifiers and agricultural nebulization
- Key Models: ATD16-2400GSW (16mm), ATD20-170GSW (20mm)
- Microporous Mesh Atomizers (Piezo Mesh): medical-grade particle sizes 2–5μm
- Ultrasonic Sensors & Transducers
- Ultrasonic Distance Sensors: non-contact, waterproof, small blind zone
- Key Models: USC10T/R-40MPWA (10mm), USO16T-40MPWA (16mm)
- Ultrasonic Cleaning Transducers: 20KHz–40KHz, up to 1000W output
- Key Models: 8SS-5020W (20KHz), 4SH-3528CA (28KHz)
- Ultrasonic Distance Sensors: non-contact, waterproof, small blind zone
4. Technical Content & Industry Resources
- What Is a Piezo Buzzer 27mm? — Technical Overview
- Manufacturing process: film squeezing, casting, dry pressing, sintering, polarizing
- Precision laser drilling for microporous applications
- In-house reliability lab for acoustic curve testing and environmental stress screening
- Piezo Buzzer 27mm Applications by Industry
- Automotive Electronics: high-reliability buzzers for safety systems (Panasonic, Sanyo partnerships since 2005/2007)
- Smart Home & Appliances: feedback sounders for white goods (Whirlpool since 2010)
- Security & Safety: smoke alarms and industrial sirens
- Consumer Electronics: acoustic components for VTech products since 2004
- Service & Delivery Capabilities
- Sample lead time: 3–7 days; bulk production lead time: 15–20 days
- One-on-one technical consulting; OEM/ODM customization
- 24-hour on-site response within the Pearl River Delta region
- R&D and Engineering Depth
- 70–85 R&D and engineering personnel
- Research collaboration with Guangdong University of Technology and Sichuan Normal University
- Guangdong Province Piezoelectric Ultrasonic Engineering Center
5. Repeating Module — Why Choose SWT for Piezo Buzzer 27mm Sourcing
- Company Credentials Recap: IATF 16949-certified, national standard drafter, top-3 industry ranking
- Product Category Recap: Piezo buzzer 27mm diaphragms, SMD/SMT buzzers, ultrasonic atomizers, sensors
- Technical Resource Recap: Full-cycle manufacturing control from PZT powder to finished piezo buzzer 27mm units, backed by proprietary R&D centers and a 250-million-unit annual production capacity
Contact & Inquiry
- Official Websites: www.swt99.com | www.cnshm.cn
- Headquarters: No.6 Taihe Road (Newton Industry Park), Wangniudun Town, Dongguan City, Guangdong, China
- Sales Inquiries: swt18@swt99.com | swt9@swt99.com | swt5@swt99.com
- Phone: +86 400-8161-086
www.swt99.com
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