Shandong Zhangrui Machinery Co., Ltd. is located in Chengdong Industrial Park, Zhangqiu District, Jinan City, Shandong Province. Our company is a comprehensive Roots blower manufacturer engaged in the design, research and development, production, and sales of ZSR series Roots blowers. The key products include Roots blower, Roots blower, Three leaf Roots blower, Three leaf Roots blower, Variable frequency Roots blower, Double oil tank water-cooled Roots blower, Dense Roots blower, Direct connected Roots blower, High pressure Roots blower, Rotary blower, Roots vacuum pump, etc. There are Jiaoji Railway, Jiqing, Jiwang Highway, and Jiqing Expressway in the city, with superior geographical location and convenient transportation. The company has fully automatic CNC machining equipment and testing methods, a large number of high-quality experts and production technicians, mature technical development capabilities and a sound quality monitoring system, and has established a comprehensive sales and after-sales service system. The ZSR series Roots blower, the company's leading product, is designed by absorbing the design experience of Roots blowers at home and abroad and optimizing it. By adopting a new composite profile on the impeller, the volumetric efficiency is further improved. Its flow rate ranges from 0.8m3/min-400m3/min, and the pressure is increased from 9.8Kpa-98Kpa, with a total of 30 models and more than 100 specifications. It has the characteristics of small size, low noise, stable and reliable operation, and easy maintenance. Our company's products are widely used in various industries and fields such as sewage treatment, pneumatic conveying, vacuum packaging, aquaculture, grain processing, electricity, petrochemicals, cement, mining, and special gas conveying and pressurization. Shandong Zhangrui Machinery Co., Ltd. adheres to the business philosophy of seeking development with integrity, competing with quality, and serving as the purpose; The business policy of diligence, pragmatism, pursuit of superior quality, and meeting customer needs, seizing opportunities, forging ahead, developing in reform, revitalizing in development, and constantly improving oneself to become better and stronger, providing customers with high-quality and affordable products in the industry, and relieving their worries.