Tongli Slewing Ring Co. Ltd is a specialized slewing ring manufacturer, 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. Strength 4 of leading experts in the technical team were involved in documentation of the National Slewing Ring Standards. 25 years technical accumulation. 50% of production for export. 2,000 types of standard products. Up to 4,000 mm in diameter. 60,000 pieces of annual manufacturing capacity. orporate philosophy Professionalism and commitment leads to success. Business goals Chinese first-class, the world famous brand Technical advantages As long as you provide us with load requirements and key specifications, we will look after everything else for you! We have the first-class R & D team in the country, including technical gurus engaged in wheel bearings design during the 70s/80s last century and four authors who drafted the National Standards for Slewing Bearing (JJ36, JB / T 10837 ~ 10839). The engineers in the R&D have won more than 20 Science and Technology Awards at national and provincial levels in product development, design, product manufacturing, special equipment NC improvement.Luo Shijun, the former director of Beijing Construction Institute of the Ministry of Construction, has more than 30 years experience in wheel bearings research, is the author of China?s first slewing ring standard JB2300 and JJ36, one of the first group of outstanding experts and researchers recognized and rewarded by Chinese Government.with a dedicated research and development center - the Institute of Slewing Bearing.The oval raceway single-row ball-style bearing was granted a national patent.
