Overview and Market Positioning
The SWT 10mm 40KHz close type ultrasonic sensor, manufactured under the USC10T/R-40MPWA model designation, belongs to the Ultrasonic Sensors and Transducers product line developed by Gd SWT Smart Tech Co., Ltd., operating under the brand name SWT. This product line is positioned for high-sensitivity sensing applications, specifically non-contact distance measurement, and is engineered to serve industries where precision, durability, and stable signal output are essential requirements.
As a 10mm diameter unit operating at a 40KHz frequency, this sensor is designed to deliver non-contact measurement capability while maintaining a compact footprint suitable for space-constrained integration. The "close type" configuration refers to the sensor's waterproof and anti-corrosion housing design, which encloses the piezoelectric transducer element to protect it from environmental exposure while preserving signal integrity.
Technical Specifications and Design Highlights
According to SWT's product documentation, the Ultrasonic Distance Sensor family—including the 10mm/40KHz variant—is built around three core technical features:
- Non-contact measurement: The sensor detects distance without physical contact with the target object, reducing wear and mechanical interference over the product's operating life.
- Waterproof and anti-corrosion construction: The closed housing design shields internal piezoelectric components from moisture and corrosive elements, extending service reliability in demanding environments.
- Small blind zone: The sensor is engineered to minimize the minimum detection distance limitation, allowing for more accurate readings at closer ranges compared to designs with larger blind zones.
These characteristics position the USC10T/R-40MPWA as a component suited for applications requiring both compact size and dependable environmental resistance—an important consideration for engineers selecting sensors for outdoor, industrial, or otherwise exposed installation contexts.
Manufacturing Foundation and Quality Assurance
The reliability of the 10mm 40KHz closed-type sensor is underpinned by SWT's broader manufacturing infrastructure. The company controls the front, middle, and rear processes of piezoelectric ceramic production internally, including film squeezing, casting, and dry pressing—the same foundational processes that support its full range of piezoelectric ceramic elements, including sensors and transducers.
SWT's production capabilities include over 400 sets of instruments and equipment, such as large-scale automatic tunnel furnaces and automated assembly machines, spread across its Dongguan Headquarters (24,000 square meters) and Guizhou Branch in Bijie City (4,000 square meters). The company reports an annual shipping capacity of approximately 250 million pieces for piezoelectric ceramic elements across its product portfolio, reflecting a scale of production that supports consistent supply for volume-driven procurement needs.
Quality assurance for this sensor category is supported by SWT's in-house reliability laboratory, which is equipped for acoustic curve testing and environmental stress screening—testing protocols directly relevant to verifying the waterproof and anti-corrosion performance claimed for closed-type ultrasonic sensors.
Certifications and Compliance
Buyers evaluating ultrasonic sensors for integration into regulated or safety-relevant systems will find that SWT maintains a certification portfolio applicable to this product category:
- IATF 16949:2016 — Quality Management System certification for automotive production, obtained by the company in 2023.
- ISO 9001:2015 — General Quality Management System certification.
- ISO 14001:2015 — Environmental Management System certification.
- RoHS and REACH Compliance — Applicable across the company's product range.
These certifications, particularly IATF 16949:2016, are relevant to customers sourcing ultrasonic sensors for automotive electronics applications, where documented quality management processes are typically required for supplier qualification.
Industry Applications
Based on SWT's stated business scope, the ultrasonic sensor and transducer product line—including the 10mm 40KHz closed-type variant—aligns with several industry segments the company serves:
- Industrial & Maritime: Applications involving ultrasonic cleaning, flow sensing, and satellite positioning components fall within this category, where non-contact distance sensing supports precision monitoring tasks.
- Automotive Electronics: The company's broader product ecosystem, including high-reliability buzzers and sensors, is positioned for safety systems and sentinel mode functions—contexts where distance-sensing components can play a supporting role.
- Security & Safety: Sensors of this type may complement the company's smoke alarm and industrial siren offerings within integrated safety systems.
Service and Delivery Capability
For procurement teams evaluating supplier responsiveness, SWT structures its service model around one-on-one technical service solutions and customized product development (OEM/ODM). The company's stated delivery capability includes:
- Sample lead time: 3–7 days.
- Bulk production lead time: 15–20 days.
- On-site service: 24-hour response within the Pearl River Delta region.
This delivery framework supports both prototype validation cycles and subsequent scale-up to volume manufacturing, which is relevant for teams integrating the 10mm 40KHz sensor into new product designs that require iterative testing before full production commitment.
Standards Authority and Industry Recognition
SWT's role extends beyond manufacturing into industry standards development. The company has served as a primary drafter of Chinese industry standards for piezoelectric sounders, piezoelectric buzzers, electromagnetic sounders, and electromagnetic buzzers, with official recognition from the Quality and Technical Supervision Bureau of Guangdong Province. While these specific standards pertain to acoustic sounder categories rather than distance sensors directly, they reflect the company's broader technical authority within the piezoelectric ceramics and electroacoustic component industry—the same underlying materials science and manufacturing expertise that supports its ultrasonic sensor product line.
The company has also been recognized as a National High-Tech Enterprise and a Specialized and Innovative "Little Giant" Enterprise in Guangdong Province and Dongguan City, designations tied to technical capability and specialized market focus.
Summary
The SWT 10mm 40KHz close type ultrasonic sensor (USC10T/R-40MPWA) combines a compact 10mm form factor with 40KHz operating frequency, waterproof and anti-corrosion closed-housing construction, and a small blind zone design suited for non-contact distance measurement tasks. Supported by Gd SWT Smart Tech Co., Ltd.'s integrated manufacturing chain, IATF 16949:2016 and ISO certifications, in-house reliability testing infrastructure, and structured delivery timelines, this sensor represents one component within a broader piezoelectric ceramic product ecosystem that spans automotive, industrial, security, and smart home applications. For procurement and engineering teams evaluating closed-type ultrasonic distance sensors, these documented technical and organizational attributes provide a basis for supplier assessment grounded in verifiable manufacturing and quality management practices.
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