Company Introduction

Tongli Slewing Ring Co.,Ltd is a specialized slewing ring manufacturer,  has Ma'anShan  Jingyi Engineering Machinery Co., Ltd. and Bengbu Tongli Slewing Ring Co.,Ltd. capable of designing, developing and manufacturing all types of slewing rings.  With deep rooted company culture that ‘professionism and commitment lead to successes, Tongli strives to offer customer satisfaction with superior technology, excellent product quality and superb service.

Tongli has a manufacturing capacity of making 100,000 pieces of slewing rings per year, up to 4,000 mm in diameter for different structures. The products cover 3,000 different sizes and internal structures. With batches of products exported to Europe, America and Asia, Tongli Slewing Ring is a well known national brand foot-printing all over the world.

Tongli slewing rings are widely used by OEMs in all types of excavators, mobile cranes, tower cranes, rail cranes, water treatment equipments, and machine tools etc.. The replacement slewing rings for different models of excavators, wind mills, solar system and mobile cranes provide the end users and distributors with more options.

We believe that innovations create superior products, science enhances our brand. Tongli is a high-tech company, with strongly research and development capacity delivered by our own Institute of Slewing Ring Research. Four of the leading experts in the R&D were involved in drafting the national slewing ring standards (JB2300-78 and JJ36) since 1970s and 1980s, all having over 33 years of experience in slewing ring designing and manufacturing. The Institute has delivered numerous innovations and product improvements, generated a number of patents and other intellectual properties.

Advanced equipment, superb technics, perfect measuring, vigorous team sucessfully formed our commitment to be top-rank in China, well-known to the world.


Enterprise’s spirit

Profession and dedication lead to success

Enterprise's philosophy

Devote to national brand.

Enterprise's Goal

China Famous Brand

World well-known Brand

Quality of ideas

Quality is the dignity of  Tongli existence and development



2003.6——Maanshan Tongli Slewing Ring co., Ltd. registed

2006.4——Maanshan Jingyi Slewing Ring co., Ltd. registed

2007.1——Tongli’s second factory put into operation

2008.1——Tongli’s third factory put into operation

2009.9——Tongli moved to a new area

2009.11——Bengbu Tongli Slewing Ring co., Ltd. registed

2011.1——Bengbu Tongli started construction


2013.3——Bengbu Tongli finished construction