◆ blower impeller shaft is made of heat-treated 45 high-quality carbon structural steel, the JIS hardness testing of quality of imports. The average material organization, avoid high concentricity eccentricity, the rotor through clover Roots blower Which is good, it means seal in between two tank shell and the bearing chamber and the engine room, so that oil can not leak to the host room. ◆ gear 1. To ensure vibration free, blower manufacturers, wholesale, silent operation and durability, Lanzhou blower, synchronous gear having straight teeth design features. Made of SNCM21, hardened by nitriding and fine grinding operation rate of a minimum of 1.7 and meet AGMA quality standards. Using the most advanced gear 5 precision or accuracy of JIS standard. Strict quality standards not only be extended gear life, and to achieve a low noise. 2. The gear engaged with the shaft by means of a tapered tight. Our company produces clover Roots blower with low noise, high efficiency, easy operation and maintenance and so on integrated use of performance is better than two leaf blower, manufacture of high precision, high efficiency leading domestic level;. Is currently the most efficient, the most widely Roots blower, Roots blower factory outlets throughout used in petrochemical, building materials, electricity, metallurgy, chemical fertilizer, mining, ports, textile, food, paper, aquaculture and wastewater treatment, environmental protection industry Roots blower features many areas: 1, the conveying air cleaner, because SSRT type and SSR type fan, like the use of oil-free inside the enclosure. 2, excellent durability, long continuous operation. 3, small size, light weight, easy to install. 4, using a special screw-structure, low noise. 5, energy saving, low operating costs. Roots blower where good, Zhucheng East Han Machinery Co., Ltd., Lanzhou blower provided by Han Machinery Co., Ltd. Zhucheng East. Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) (www.dhlcfj.com) is an industry leader in Shandong Weifang, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. John in Zhucheng East Machinery Co., Ltd. leadership with the staff warmly welcome all inquiries negotiations to create Zhucheng East Han Machinery Co., Ltd. a better future.