Development of China's oil free compressor is divided into two types, specific as follows:

The first category: the development of China's oil free air compressor

1. The first design of oil free piston air compressor Z - 3/8, 6/8 Z - the aircraft designed by shenyang factory from the gas compression in the 1960 s, under the planned economy system, the air compressor factory production of products by the national unified deployment, due to the shenyang factory from the gas compression is large domestic compressor factory mainly produces fertilizer with compressor, so the model produced by national deployment of the second air compressor to liuzhou.

2. Liuzhou the second air compressor factory production since the 1960 s and Z Z - 3/8-6/8 oilless air compressor, the factory turns out to be a labor factory is small and medium enterprises in the compressor industry, in the domestic oil free compressor and s big development period has been a lot of ascension, at the same time in the 1980 s and introduced the design of the oil free air compressor series, make the product specification and scope of the obvious.

3 L series air compressor without oil, the oil free air compressor in the seventies and s development period, domestic production of oil air compressor L air compressor production enterprise, has to have a L air compressor oil, add spare travel components, make indoor compression basic reached without oil, resulting in large displacement of the oil free compressed gas.

4. The second compression bengbu factory in the late 1980 s, the introduction of Germany Demqg ep series oil free compressor technology part of the oil free air compressor products.

5. Shenyang factory from the gas compression in the 1980 s, the introduction of German technology with gas compressor manufacturing technology, there can be no oil lubrication sealing ring material made of filled ptfe technology, the technology of shenyang gas compressor factory use only.

6. Nanjing three da machinery co., LTD. Production of oil free air compressor, the technology based on the United States Ingersoll rand technology products, such products are mainly produces electrical power 30 horsepower under the high pressure oil free air compressor.

The second category: the oil free compressor development in our country

On the market at present in our country the whole oil free compressor general situation has the following kinds:

1. During the period of hefei general machinery research institute according to the national purpose of 38 major technological project technology on science and technology, our country the whole oil free piston air compressor research work in the eighty s, the earliest foreign products of surveying and mapping major models, motor power 0.8 KW, 75 KW of two kinds of products, such models no single crankshaft, the body by the suppression of aluminum, the aircraft lighter; With the needs of the development of industry of hefei general machinery research empty project docking, the host countries with hunan changde general machinery factory in the WW - 0.6/10, 0.85/10 WW - two types of model design and manufacture, and the model to obtain the national patent and Cuba international machinery design gold award, after using this technology in oil free compressor manufacturer mainly has: anqing the 4812 factory, anqing oilless compressed factory (now anqing hk united compression factory), zhenjiang Marine power factory, foshan factory, wuxi second compression compression factory, shanxi changzhi air compressor factory, by the 1990 s and anqing 4812 factory cooperation developed by hefei general WW - 2.5/7 oilless air compressor.

2. The surveying and mapping of Japan's Hitachi air compressor factory mainly produces oil-free air compressor all displacement 0.3, 0.6, 0.9 m3 / min exhaust pressure 0.7 MPa.

3. General machinery in the last century in seventy to cooperate fertilizer with oil free compressor research, filled ptfe material to seal and suppression techniques for research, through to the 20 multiple formula screening, finally choose some suitable for use in small chemical fertilizer use and air compressor formula, with high copper powder filled ptfe piston ring and guide ring is currently full oil free compressor is more suitable products.

4. Foshan guang shun technology co., LTD. In the late 1990 s began production ZW - 370 type oil-free air compressor and vacuum pump, and developed the mute in small size oil-free air compressor series products.

5. The domestic oil free screw air compressor by wuxi first compressed factory and hefei institute of the development and production together, later evolved into the Shanghai Luo Dekang general compressor co., LTD., Shanghai Ingersoll rand compressor co., LTD., Shanghai god steel production, such as oil free screw air compressor.

To sum up, oil free air compressor in our country at present the main production plate is as follows:

First, by the hunan changde, anqing in anhui, liaoning anshan to form the whole oil free piston air compressor.

Second, by the wide foshan shun technology production of mute small oil free piston air compressor.

Third, production by the nanjing is still love, hengda high-pressure oil free piston air compressor.

Fourth, by the Shanghai Luo Dekang tin pressure, Shanghai Ingersoll rand, Shanghai, wuxi god formed by steel oil-free screw air compressor.

Collect the data according to the national related information, such as there are holes or uncertain please timely points out, in order to modify!