Company Profile

We have been committed to acoustic emission testing equipment and monitoring systems for more than 20 years.

Qawrums Ltd. (previous name: “QingCheng Ltd.”) is an enterprise specializing in the research and development, production and technical application services of acoustic wave (acoustic emission) testing equipment and systems including convectional bench-top AE testing systems and wireless remote IoT-AE monitoring systems. In addition, we also develop and manufacture vibration testing system, handheld ultrasonic gauges, other testing and inspection systems, and condition monitoring systems.

We were established in 2000 and have offices in Guangzhou (headquarter) and Beijing (branch).

Our mission is to provide high quality and reliable IIoT online unattended condition monitoring solutions for predictive maintenance of valuable industrial assets in the world.

Our Story

Qawrums Ltd. is previously known as QingCheng Ltd. Our team initially started as Beijing Soundwel Technology Co., Ltd. founded in Beijing, 2000. In 2017, we relocated to Guangzhou and established Qingcheng AE Institute (Guangzhou) Co., Ltd. (usually shorten to “QingCheng Ltd.”) as our headquarter and retained Beijing Soundwel Technology as our Beijing branch office. For the purpose of the global market expansion, the international brand establishment and future products and services expansion and developments, QingCheng Ltd. has decided to change its English name to QAWRUMS Ltd. and our registered Chinese name remains the same. We are also excited to announce our new logo changes.[News Annoucement]

For over 20 more years, we always keep the original intention and mission in mind and in action. Even with the new name and logo change, we will continue to provide top quality products and will offer more new and better products and services for our customers all around the world.

Our Products and Services

Our main products are acoustic emission (AE) systems, including various AE sensorspre-amplifiers, AE acquisition and processing benchtop system and online monitoring systems and other accessories. Our featured product, the remote IoT-AE online monitoring system, RAEM is one of the advanced IoT-AE remote wireless online monitoring systems worldwide. We also develop and manufacture handheld ultrasonic flaw detectors, ultrasonic thickness gauges, handheld valve leak detectors, vibration testing system and other NDT or intrinsically safe testing equipment.

We also develop and provide professional analysis software and IoT Cloud platform that works with our instruments. We also accept customized design and provides solutions and technical supports services.

Our products have been not only sold domestically in China, but also sold to customers around the world such as the United States, the United Kingdom, Japan, Singapore, Brazil, and Mexico and more.

Company Culture

The keywords of our company cultures are:

【Honesty, Pragmatism & Fairness】

Sincerity is the foundation. Treat things and customers and employees with honesty and faiths.


Happiness is the goal. We aim for happy working and satisfactions from customers.


Continuously focus on developing and providing professional products and services with proprietary intellectual property rights.

Our Team

We are a united and growing team working together to provide better products and services to customers. Our R&D team designs and develops all our products and systems and also designs customized products for some special projects and requirements. Our technical team provides effective solutions to all kinds of applications and scenario, as well as professional technical supports before and after sales. Our domestic and international sales team serves customers in finances and technical advice throughout the sales fluently and professionally in both Chinese and English. Our production team manufactures all our products followed by rigorous and strict quality tests and certification.

We are excited to be able to work with you and help you solve your problems and achieve your goals.

Our Development Path

7 important stages we have gone through


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