Our country has successfully broken through the industrialized production of PAC to fill the gap in domestic industrial production of PAC

Recently, Shandong Yiteng Group, with the help of the North Century Cellulose R&D Center of Beijing Institute of Technology, has successfully broken through the incomplete alkalinization and non-uniform technology substitution in the industrialized production of PAC (polyanionic cellulose) through independent technological innovation. And the bottleneck of the process has filled the gap in domestic industrial production of PAC.
PAC is an important high-tech chemical product that has been widely used in various fields of industrial production and has been recognized internationally. However, because of its complicated technology and technical difficulties, only a few developed countries such as the United States, the United Kingdom, Japan, France, and Germany have mass production capabilities. In order to meet the needs of industrial production, China's related industries will spend hundreds of millions of dollars each year to import high prices from abroad.
Shandong Yiteng Group adopts the self-developed “ternary compound solvent” new technology to give full play to the role of each solvent, solve the technical problem of incomplete alkalization, increase the acid resistance of PAC by more than 30%, and salt tolerance. Increase by more than 20%. At the same time, they adopted a self-designed "multiple slurry" process and a dedicated reaction equipment DCS computer control system to solve the uneven replacement of this process, so that PAC production to achieve continuous mass production, production efficiency increased by 30% the above.
The PAC products developed by Teng Group have undergone trials in many industries such as petrochemical, food, medicine, cosmetic, paint, ceramics, explosives, etc. The main technical and economic indicators have reached or exceeded the level of similar foreign products, and the cost has been saved by more than 1/3. Has produced good economic and social benefits.

Our Quick Release are used for pipe connection,especially for the Dredging pipe.

Dredge pipe pieces are a variety of pipes on board of dredgers like bend pipe, T-pipe, pitched T-pipe, Y-pipe, cross pipe, strait pipe, and conical pipe.


These dredge pipe pieces are used on-board of dredgers to connect the Dredge Pump with the discharge pipe.

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Mostly the pipes are made from cast steel. Sometime Welded Pipes are used.


Dredge pipe pieces may have different thicknesses, shapes and lengths, they are also provided with lifting lugs for easy handling. They supposed to have smooth surface for low frictions. In most cases the flanges are cast together with the pipe to provide a stronger connection between flange and pipe.


It is also very important that the entire dredge pipe pieces to follow the shape of the flow resulting in low frictions and to avoid vortexes.

The materials used to manufacture the dredge pipe pieces are both manganese alloy that provides high elongation and impact value or high chromium, nickel and molybdenum alloy that gives high yield, high tensile and very high hardness values.

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UniSite group was established in a strategic location, Chinese second largest port, Ningbo, which is characterized by visible leadership, vitality, innovation, long-term vision and a sound financial position.

As an international partner, we are specialized in providing comprehensive service of dredging, land reclamation, offshore projects, marine engineering, municipal engineering and environmental remediation projects.

Besides our own production base and technology system, we also have strategic partnerships with DONGPENG shipyard, a leading producer of chemical vessels in China.

The group has a perfect managing system and our staff who are professional in technology are committed, passionate, efficient. Thanks to the knowledge, the experience and the skills of our work team, we are able to offer our client best possible and most sustainable solutions to their requirement. We are one of the leading steel parts and service providers for dredging and marine engineering in China.

UniSite culture consists of corporate values, corporate philosophy and behavior shaping, which is the core of responsibility and breakthrough. Based on this core, with professionalism, vitality, innovation, respect, team spirit, UniSite culture is continuously developing, along with our company from its foundation.

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