Founded in 1995 and as a member of China National Crane Conveyor Machinery Association, China Chuanda Conveyor Belt Co., Ltd. is a specialized magnetic bearing manufacturer and custom magnetic bearings designer of various kinds of conveyors, belts, pulleys, bearings, rollers, bushings and so on. Through modern scientific management, excelsior products and technological design, advanced production tools and strict testing methods, we have produced various types of conveyance equipment. In 2001, we were certified by ISO9001: 2000, which has ensured the reliability and stability of product quality. Also, we have passed Germany DQS authentication in the domestic same trade. We have established long-term relationships with some famous mechanical manufacturers both at home and abroad, such as Veit GmbH, Hashima, Oshima, Summit, and KDK companies.

The Danfoss Turbocor family of compressors' rotor shafts and impellers levitate during rotation and float on a magnetic cushion. Two radial and one axial magnetic bearing are employed. Bearing sensors feed back real-time orbit information to digitally controlled bearings. Centered rotation is instantaneously self-corrected and maintained. When not powered, the rotor is supported by carbon composite, touchdown bearings designed for years of use. Three magnetic-bearing reaction wheels apply a torque on the satellite to rotate it about one of its three axes. - Two magnetic torquers interact with the Earth's magnetic field to generate torques and thus control the speed of rotation of the reaction wheels. In certain operating modes (chiefly acquisition and fallback failure modes), thrusters may be used instead of the reaction wheels and magnetic torquers. The thrusters generate a moment arm about the satellite's centre of mass that induces a rotation about one of the three axes. The magnetic turbo generator is made of a turbine wheel driving a high speed generator mounted on two magnetic bearings. Magnetic bearings consist of three main components; a magnetic actuator, a sensor, and a feedback controller. To understand how magnetic bearings work, one must first understand the role of the three components used in levitation.

Active magnetic bearings (AMBs) are receiving increasing amounts of attention due to their unique characteristics. AMBs use actively controlled electromagnetic forces to control the motion of a rotor or other ferromagnetic body in air. Contact-free suspension leads to important advantages relative to conventional rolling element or hydrodynamic bearings: reliability, low-maintenance and losses, and higher speeds in extreme environments without requiring complex lubrication systems. Examples of applications include:
high-performance vacuum pumps due to absence of wear, lubrication systems, and lubricant contamination of the process. Machining spindles used for high speed cutting which benefit from the high rotation speeds and accurate positioning that are enabled by contact free operation and active controls. Magnetic bearings are ideal for high speed applications such as flywheels, because they can run at much higher speeds than ball bearings because there is no friction. . All these compression units on magnetic bearings are destined for the Russian natural gas transport networks. These "oil-free" systems increase the reliability and safety, as well as simplifying the after-sales-service, of natural gas compression units.

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