The steel brush cleaning pig, produced by Shenyang Wensheng Instrument Equipment Co.,Ltd, is used for rust cleaning and paraffin removal inner of surface of pipeline. It has the characteristics of strong passing ability, perfect stiffness and obvious work effect. The support-type steel brush cleaning pig has more obvious work effect. Characteristics of steel brush cleaning pig: 1 Clean the corrosive substances in the pipeline; reduce the abrasion of inside wall of pipeline caused by the corrosive substances; define the direction of pipeline again; inspect that whether the pipeline is out of shape; reduce work back-pressure; 2 Clean the freezing point oil, paraffin precipitation and scaling inside of the pipeline to realize decrease back pressure of oil and abrasion, as well as reduce the temperature of oil; 3 Clear up the pipeline which has polymerizable material; separate different pipeline transportation medium; 4 Clean up the sundries, free rust, drainage and exhaust in pipe; 5 Inspect quality of project; exhaust before test of water pressure; 6 Clean the water scale and sediment Function of steel brush cleaning pig: The cleaning pig is used for pigging and hose sweeping before production, which can clean up the stones, lags and other sundries remaining in the pipeline while construction. Using the cleaning pig can increase transportation efficiency of pipeline, save energy, prolong use life of pipeline and provide reliable automatic control.