About Us

Jiangsu Shuangzheng Machinery Co.,Ltd. is specializing in standard and non-standard slewing bearing. Over the years, we supplied high quality product & good service to every end user and valued distributors all over the world. We’ve enjoyed a very good reputation up to now.

We have strict quality control system in our own factory, meanwhile, we have passed ISO9001-2008 Quality System Certification and JG/T67-1991,JB/T2300-1999 with our country’s engineering & machinery standards.

Our products are ranging from 200mm to 5000mm, which mainly apply for tunneling equipment, harbor and shipyard cranes, construction equipment, mobile cranes, offshore technology, tower cranes, turning machines, solar energy plants, ship deck cranes, railway crane, man lifts, wind turbines, and more. And we are proud of our designing team and our past achievements and continuous development, we are strongly motivated for the challenges to come. Adaptation to changes in the environment,  we do have our own ability to customize varieties specific needs, we will do our best to provide you the most and unparalleled slewing bearing with competitive price, high quality and on-time delivery !

For slewing drive, there are nine (9) different sizes available from 3" to 25" with more than 60 models to mee…