About Us

About Long Dai

Extraordinary Quality, Global Trust

Longdai Environmental Protection Group always adheres to the principle of “Quality Assurance, Reputation First” and the belief of “Technology Entrepreneurship, People-Oriented”, developing products, lean production, and serving the world. The company has formed an efficient, accurate, and modern enterprise management system with unique Longdai characteristics, providing favorable management guarantees for achieving global customer satisfaction

Solid Quality

Enterprise tenet: Quality First;Fortune 500 Suppliers.

Research Team

2 PhDs, 2 Masters, and 6 Senior Engineers in the R&D team

Environmental Protection R&D Center

Longdai Environmental Protection Group has continuously increased its investment in technology research and development, and has established a research and development center with Zhengzhou University to reserve professional technical strength.


Build Quality




Industry Experience

What We Do

The Best Quality of water treatment equipment Manufacturing

Deeply cultivated in the water treatment equipment for over 15 years; Front-line employees have over 5-8 years of production experience.

Who We Are

The One Stop Solution for Sewage Treatment Industries

We have an advanced scientific research team, an experienced production team, a comprehensive engineering construction team, and a responsive after-sales management system. We have participated in over 1000 sewage treatment projects in engineering design.

Saving You Time
Trusted Company

Controling all the system with modern technology

User FAQ

Answers to all your questions whether Longdai or machine

At Longdai, we are committed to ensuring that all your questions find the answers they deserve. Whether your inquiries pertain to Longdai itself or the fascinating world of machines, our dedicated team is here to provide you with the information you seek.

Yi xing City, Wu xi City, Jiangsu Province, is located in the famous city of environmental protection equipment, specializing in the production of screw press sludge dewatering machines. It is very close to Shanghai and only takes less than 2 hours to drive. Welcome to our store.

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Trusted Clients