Scientific Operation, Scientific Acceleration

Since its founding in 2004, for nearly 20 years, Rangyun has focused on three key questions: How to make bearing motion more scientific? How to make bearing acceleration more scientific? How to make bearing life more scientific?
Rangyun firmly believes that only with independent brands and highly technical products can it handle harsh operating conditions and meet the growing market demand. Therefore, Rangyun is committed to enhancing the scientific aspects of bearing motion, acceleration, and life.
In the future, Rangyun will continue to uphold the corporate value of "making bearing life more scientific" and keep innovating to develop cleaner, more durable, and safer engineering bearings.

Corporate Development History

We understand that only by manufacturing lighter, more efficient, more sustainable, and easier-to-maintain products can we help enterprises and society achieve sustainable development.

The period from 2004 to 2013 is summarized as follows:
Bearing product distributors, lubrication system product distributors;
Bearing remanufacturing, machine tool spindle repair, industrial motor repair;
Application engineering, asset management services, condition-based maintenance, bearing training solutions;

 2014
2014
Independent Hunan Rangyun Co., Ltd.;
Entered the engineering bearing field in the form of production;
Applied advanced CRM management system, launched and successfully implemented.


2015
2015
Entered the marine equipment industry;
Positioned the development, design, experimentation, and verification of engineering ceramic bearings;
Determined the common bearing models and series of engineering ceramic bearings;
Determined the common materials for engineering ceramic bearings: zirconia, silicon nitride, silicon carbide, alumina;

2016
Entered the lithium battery-related industry;
Positioned the development, design, experimentation, and verification of engineering high-temperature bearings;
Determined the common bearing models and series of engineering high-temperature bearings:
Determined the common materials for engineering high-temperature bearings: ET grade, D(S)T grade, W(F)T grade, BT grade, C grade;

2017
2017
Entered the medical magnetic levitation mixing industry;
Positioned the development, design, experimentation, and verification of engineering stainless steel bearings;
Determined the common bearing models and series of engineering stainless steel bearings:
Determined the common materials for engineering stainless steel bearings: 420, 440, 440C, 304, 316, 316L;

 2018
2018
Entered the medical liquid storage bag and mixing preparation bag industry;
Positioned the development, design, experimentation, and verification of engineering Hastelloy bearings;
Determined the common bearing models and series of engineering Hastelloy bearings;
Determined the common material for engineering Hastelloy bearings: HC276;
2019
2019
Registered trademarks "Rang Rong," "Rang Rong," and "Rang Yun";
Registered trademarks "RANUR," "ROHOR," and "RANUY";
Obtained 2 utility model patent certificates and 12 utility model patent recognitions;

2020
2020
Entered the solid-state battery-related industry;
Established RANUR and RANUY series product R&D centers;
Established bearing supporting technical service team;
Provided supporting technical services for RANUR and ROHOR series products;


2021
2021
Company bearing R&D success;
Passed the safety production standardization certification;
Passed ISO9001 quality management system certification;
 2022
2022
Company bearing R&D success;
Established Zhejiang Let Cloud Bearing Manufacturing Co., Ltd.;
Added a 10,000 square meter production base with a total investment of *** million;


2023
2023
Company bearing R&D success;
Obtained 3 utility model patent certificates;
Obtained 16 invention patents and 26 utility model patent recognitions;

2024
2024
Company bearing R&D success;
Obtained 3 utility model patent certificates;