Dongguan JingHuan Environment Equipment Co., Ltd. was founded in April 2003, originally established as Sai Deli Acoustics Research Co., Ltd., and was officially renamed in August 2012. As a national high-tech enterprise, the company specializes in the R&D, manufacturing, and sales of acoustic control equipment, engineering solutions, and sound insulation materials. Core products include fully anechoic chambers, semi-anechoic chambers, soundproof test boxes, audio-visual entertainment rooms, industrial sound insulation enclosures, and a full range of acoustic materials.

With over 20 years of experience in architectural acoustics, JingHuan operates two major production bases in Guangdong and Zhejiang, independently owning an acoustic industrial park covering over 20 acres. The company also has a branch in Vietnam to support its growing international presence. The team comprises more than 200 professionals, with R&D and design personnel accounting for 10% of the workforce and annual R&D investment exceeding 20% of the business unit's revenue.

JingHuan has successfully completed over 1,000 large-scale projects and served more than 10,000 corporate clients worldwide, including numerous Fortune 500 companies and well-known listed corporations. Long-term strategic partners include BYD, Nidec, Johnson Electric, Midea, Panasonic, Tsinghua University, and Hong Kong Polytechnic University.

The company offers a one-stop service model covering design, manufacturing, installation, and after-sales support. Its technical capabilities are validated by multiple invention patents, authoritative third-party test reports from the South China National Center of Metrology, and various industry certifications. Notable achievements include anechoic chambers with background noise levels as low as 2.1 dB(A), lightweight soundproof doors, composite shock absorbers, and automated production line noise analysis systems.

In recent years, JingHuan has further strengthened its innovation capacity by establishing the JingHuan Intelligent Research Institute, a new R&D center, a flat anechoic test room, and a reverberation experience room with adjustable reverberation time.

Guided by the business philosophy of "Quality, Service, Professionalism, Innovation" and the mission of "Assisting Century Scientific Research and Improving the Human Hearing Environment," JingHuan is committed to delivering exceptional acoustic solutions worldwide.


Development Milestones：
2003 – Established Sai Deli Acoustics Research in Dongcheng, Dongguan, focusing on acoustic laboratory construction.
2004 – Registered Sai Deli Electronic Equipment Business Department in Nancheng, Dongguan, specializing in noise measurement instruments.
2005 – Developed a lightweight soundproof door; anechoic chamber background noise reached 16.4 dB(A), setting a domestic benchmark.
2007 – Became an Alibaba Chengxintong member; launched the composite shock absorber.
2009 – Established JingHuan sound insulation equipment factory covering 5,000 square meters.
2010 – Founded Sai Deli Acoustics Research (HK) Co., Ltd., expanding into global markets.
2012 – Officially renamed Dongguan JingHuan Environment Equipment Co., Ltd.; two fully anechoic chambers at Nidec (Dalian) passed third-party testing with background noise below 9 dB(A).
2016 – Successfully developed sound-absorbing keel; completed third-party certified anechoic chambers for Tsinghua University and Nidec.
2018 – Established Affurer Acoustics Engineering Co., Ltd. in Yuyao, Zhejiang; achieved a breakthrough with SOLUMCO's anechoic chamber reaching 2.1 dB(A) background noise.
2019 – Moved to JingHuan Acoustic Industrial Park in Wanjiang, Dongguan; completed anechoic chambers for Rockwell Collins and Nidec (Philippines) with background noise below 10 dB(A).
2020 – Developed an in-house noise analysis system for production line testing.
2021 – Deployed soundproof boxes for automated production lines for clients including BYD and Johnson Electric (Shenzhen).
2022 – Acquired Zhisheng Spraying Factory; established a new R&D center, flat anechoic test room, and adjustable reverberation experience room.
2023 – Established JingHuan Intelligent Research Institute and Vietnam branch; recognized as a national high-tech enterprise.
2024 – Founded "DeYi Holdings" and restructured "RuiTai Construction" into "TongChen Construction."