Chengdu Tianma Railway Bearings: Two achievements won the national patent

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Chengdu Tianma Railway Bearing Co., Ltd. is a wholly-owned subsidiary of Tianma. It was founded by Zhejiang Tianma Bearing Co., Ltd. and reorganized the former national large and medium-sized enterprise - Chengdu Bearing Group Corporation. The company has 50 years of experience in bearing R&D and production. Zhejiang Tianma Bearing Co., Ltd. is the first manufacturing enterprise in China bearing industry that has the advantages of integration of three major industrial chains: "Materials, Bearings, and Equipment." At the same time, the company has four major bearings in Hangzhou, Beijing, Chengdu and Guizhou. Base and Qiqihar equipment base.

Warmly congratulate the company's patent “Outer Oil Seal Assembly Leasing Machine” and “Stepped Hearth Ring Heating Furnace” which have passed the review of the State Intellectual Property Office of the People's Republic of China and obtained national patents. The patent numbers are “ZL 2010 2 0600810.8"," ZL 2010 2 0600840.9".

Chengdu Tianma Railway Bearing Co., Ltd. currently employs more than 2,500 people, and produces railway bearings, wind power bearings, short cylindrical roller bearings, thrust spherical roller bearings, tapered roller bearings, etc., which are widely used in railways, wind power generation, ships, etc. Ports, metallurgy, electrical machinery, engineering machinery and military products.

The company has passed the ISO9001:2000 Quality Management System, ISO14000:2004 Environmental Management System, and Metrology and Inspection System Certification. TMB Bearing won the title of “China Top Brand”, “Most Market Competitive Brand” and “National Inspection-free Product”, and the TMB Trademark was awarded "China's well-known trademarks" and so on.

Twisted Tube Heat Exchanger

Twisted Tube Heat Exchanger is to strengthen the turbulence of the flowing gas/fluid, so that the gas and the tube wall contact thoroughly. In addition to enhancing heat transfer, the twisted tube heat exchanger also has the advantages of reducing scaling, self-supporting between tube bundles, no baffle plate elements and so on.


With that being said, novel Twisted Tube Heat Exchanger is much more efficient than conventional tubular heat exchanger, or Shell And Tube Heat Exchanger. Twisted tube heat exchangers are also used in applications where the fluids are corrosive or contain particulates, as they are better able to handle these conditions than other types of shell and tube heat exchangers or Air Heat Exchanger.


Twisted tube heat exchangers are constructed from a series of twisted tubes arranged around a central tube. The tubes are twisted in such a way that the fluid will change direction multiple times as it passes through the exchanger. This increases the turbulence of the fluid and creates a larger surface area for the heat exchange, which increases the efficiency of the exchanger.


The shell is usually made from a thick metal such as carbon steel, which increases the durability of the exchanger.

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