Our company. Our craft.
Fan engineering
around moving air.
Behind every TWOSUN fan is a connected team of designers, manufacturers and technical specialists.
30+
Years focused
on ventilation.
Engineering expertise.
Manufacturing experience.
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ZHEJIANG SHUANGYANG FANS HOLDING CO., LTD.
DESIGN / MANUFACTURE / SUPPORT
01 / Meet TWOSUN
Fan production.
Many demanding
environments.
We bring fan design, manufacturing and technical support together — with a clear focus on the application.
Zhejiang Shuangyang Fans Holding Co., Ltd., known as TWOSUN FANS, is a specialist manufacturer of fans, dampers and silencers. Our portfolio spans building services, metro and tunnels, industrial processes, nuclear power and marine ventilation.
From the first specification discussion to production, inspection and delivery, we connect the product with the conditions it will work in. Our manufacturing facilities and engineering resources support that work under one coordinated operation.
100,000+
m² of company grounds
75,000
m² of construction area
500+
Employees across the company
02 / Our manufacturing home
Space to engineer.
Room to build.
A closer look at the TWOSUN factory areas. Real facilities, dedicated production space and the infrastructure behind our ventilation portfolio.
Capability is more than floor space.
It is the connection between fabrication, assembly, testing and the people responsible for each stage.
Where individual components
become complete fan systems.
Production, assembly and inspection on the TWOSUN factory floor.
03 / Engineering & innovation
Fan design expertise.
Curiosity in the work.
TWOSUN invests in technical innovation and cooperation with universities and research institutes. Engineering knowledge, product development and manufacturing experience inform the way we approach new ventilation requirements.
70+
Engineering professionals
60+
Patents
Our company profile also records more than 30 intermediate and senior engineering technicians.
Engineering decisions supported by manufacturing and laboratory feedback.
TWOSUN / ENGINEERING CULTURE
04 / Selected milestones
A specialist story.
Built over time.
From our founding and brand registration to laboratory accreditation, specialist fan licensing and company listing.
1996
Founded in 1996
Founded by Mr. Dong Mingwei.
2002
TWOSUN brand
The Shuangyang and TWOSUN brands are registered.
2010
CNAS-accredited laboratory
A national-level fan laboratory with CNAS accreditation.
2012
AMCA member
AMCA membership. ISO 9001 and ISO 45001 management systems.
2019
Nuclear fan license
Nuclear-grade fan licensing and the metro and tunnel fan production base.
2025
Company listing
The joint-stock company completes its listing.
05 / Our product focus
Different industries.
The same
engineering focus.
We work across five specialist fields, with fan families and supporting components selected around each application.
06 / A shared direction
Better technology.
Carefully made products.
Lasting relationships.
OUR VISION
Develop industry-leading technology.
Deliver high-quality TWOSUN fan products.
01
Keep improving
Connect research, practical engineering and production experience.
02
Build with care
Bring attention to materials, fabrication and product verification.
03
Stay connected
Keep technical communication and after-sales support close to the project.
Come and see TWOSUN
Meet the people.
See the capability.
We welcome conversations with customers and project partners. Contact our team to discuss a factory visit or your next ventilation requirement.
SHANGYU · SHAOXING · ZHEJIANG