The basic requirements for a Roots blower, the blower shall comply with the provisions of this standard blower models, and in accordance with prescribed procedures approved manufacturing drawings and technical documents. 2, blower design, manufacturing and general technical performance should be consistent with the provisions of JB / T, 8941.1 in. 3, the blower should not be higher than the intake air temperature 40 ℃, the gas content of the solid particles is not greater than 100mg / `m ^ 3`, the maximum particle size of not more than half of the minimum working gap conditions relative motion within each cylinder blower member Under normal use. 4, under specified operating conditions, blower cumulative uptime should be no less than 6000h. 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 clover Roots blower, an accuracy of five, the tooth surface more resistant, can significantly reduce gear noise. Roots blowers, blower, Zhucheng East Machinery Co., Ltd. is provided by John Han Machinery Co., Ltd. Zhucheng East. 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!