About us

TNW Co., Ltd is a company focuses on design, supply and manufacture environmental protection equipment,We also provides professional installation and debugging.

As one of the largest sewage treatment manufacturers in the world,We have a group of high technology, high level of environmental protection engineering and technical personnel, with rich experience in engineering and technical management ability and product quality management. With strong responsibility and thanksgiving, TNW is willing to create a green earth, environmental friendly home with domestic and abroad customers. Welcome!



We have established long-term and stable cooperation with customers in Canada, Bolivia, Finland, Morocco, Spain, India, Thailand, Vietnam, Malaysia, Singapore,Philippines, Australia, etc.

Because of our expertise, many world-renowned enterprises, even some of the world's top 500 enterprises, have chosen to cooperate with TNW, such as: Suez, Veolia,Petrochina, Sinopec, Meiji dairy, COFCO, Uni-President Group, Shineway group, China Railway, etc.


TNW specializes in manufacturing wastewater treatment and sludge dewatering facilities for over 10 years.

The key products includes:

- Sludge dewatering Screw Press

- Dissolved air flotation (DAF)

- Screening system (Internally/Externally feed Drum Screen, Rotary Drum Screen, Bar Screen, etc.)

- Polymer preparation system (Automatic and Semi-Automatic)

- Aeration system (Disc/ Tube air bubble diffuser, Blower)

- ect.


1.TNW---One of the largest sludge treatment equipment providers in the world, providing sludge and water treatment solutions to more than 1000 customers worldwide.

2.We have our own independent patents, brands, products and technologies, Therefore we are worthy of your trust.

3.Over 10 years professional engineering skills,5S standardized management,10000 square meters of independent plant.



1.We have a professional foreign trade team to meet the needs of customers.Our team : young, professional,highly educated.

2.Global one-stop service,Excellent foreign language skills and enthusiastic working attitude.

3.When it comes to TNW's development goals, we want to grow with our customers, from sample orders to long-term partners.We will always accompany you with the same attitude. TNW will not be satisfied until our customers get the most benefit.


1.For complex sludge, we will conduct field experiments to understand the nature of sewage and customize solutions.

2.We will visit customers around the world regularly to understand the problems in the use of products.

3.High quality after-sales service ensures that you can enjoy one-to-one technical support after you buy products.