Common type blower features: 1, Roots blower sealing structure is reasonable, oil and gas can not enter the chassis, so that the output air is clean and free of grease. 2, bearings, belt imported. Bearings are manufactured in Japan, the US manufacturing belt. 3, fan gear used 20CrMnTi carburizing treatment, grinding, precision up to five, the tooth surface more resistant, can significantly reduce gear noise. Lobe Roots Blower Features: 1, air volume and speed is proportional to the output, clover-type impeller every turn by two impeller blower buy engagement for 2, sub suction and discharge compared with two leaf type, gas pulsation small clover Roots blower, vibrations, low noise, long distance and high pressure seal fan 3, gears 20CrMnTi material accuracy of GB / T10095 five precision (higher than the national standard of two seven precision accuracy class) tooth surface, cone carburizing, quenching, hardness HRC56-62 4, the use of advanced composite impeller line, precision CNC machined from a uniform clearance from the impeller assembly, the volumetric efficiency can be greatly increased by 5, the Lord, fuel tanks are made of splash lubrication, gears, bearings lubrication safer, more reliable models blower | blower | Zhucheng East Han Machinery Co., Ltd. is provided by the East Han Machinery Co., Ltd. Zhucheng. Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) strong, credible, Shandong Weifang fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the East Han Machinery Co., Ltd. Zhucheng and you hand into the brilliant, for a better future!