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air blower

Unit Price:  USD2500 Get Latest Price

Model No.: NSRH

Min. Order: 1set

Packaging: wooden case

Delivery Time: 15 Days

Place of Origin: China

Brand: greentech

Supply Ability: 100sets

Mr.John Jiang

Business type:Manufacturer

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Product Description

Roots Blower


Bore: 50~500mm


Flow capacity: 0.5~420m3/min


Pressure rise: 9.8kPa~98.8kPa


Vacuum: -49kPa




Roots blower, sometimes called a Positive Displacement, or PD blower, is a machine which "pushes" a relatively constant volume of the gas handled at the inlet through to the discharge. It applies to conditions requiring high vacuum or high pressure especially in the waste water treatment plant.


The main purpose of the blower is to provide constant flow of gas at different pressures. The blower consists of a cast iron casing in which two rotors with conjugate shapes rotate and are synchornised by a set of timing gears. During rotation, there is no contact between the lobes or between the lobes and the casing.


Greentech International (Zhangqiu) Co., Ltd 

Welcome to Greentech International (Zhangqiu) Co.,Ltd As an expert in air systems, Greentech has become one of most successful suppliers of blower and vacuum pump in China with more than 20 years experience in R&D and marketing. We have an extensive team of engineers to provide technical back up to all clients as well as a large manufacturing base for blower and vacuum pump. Our products range from Roots Blowers (also call PD blower), Side Channel Blowers (also call ring blower or regenerative blower), Vacuum Pumps (liquid ring vacuum pump, also call water ring vacuum pump), Multistage Centrifugal Blowers, Single Stage High Speed Centrifugal Blowers, Centrifugal Fans, Industry Pumps, and Electric Products etc.Thanks to the ongoing globalization of our company-group we continually expand our sales and service network. Based on China domestic market, we have exported our products to more than 30 countries and areas, such as USA, Australia, Finland, Russia, Czechs, Ukraine, Korea, India, South Africa, Southeast Asia area, Middle East area etc. Technological innovation and leadership are key elements for the company's progress. International co-operation on the continuous development of new products, prototyping and tests in real-operating conditions represent our commitment to ongoing research for the most suitable solutions to meet the market requirements. Greentech products are a combination of experience, quality and reliability,and sustainability for a wide array of industries, namely ceramic products, cement products, pneumatic conveying, chemical processing, pharmaceutical, oil and gas, water supply & irrigation, waste water & sewerage treatment, mining, steel, agriculture, electronics, food processing & packaging, marine & shipbuilding etc.. Our primary goal is providing exceptional customer service coupled with innovative products and progressive system solutions.We strive to be a trusted partner for our clients. We deliver what we promise!

Basic Information

  • Company Name:

    Greentech International (Zhangqiu) Co.,Ltd

  • Business Type:


  • Product/Service:

    roots blower , ring blower , vacuum pump

  • Product Range:

    Environment Protection Device , Centrifugal Pump , Vacuum Pump

  • Certificate:


  • Company Address:

    Mingshui Economic Development Zone, Zhangqiu City, Shandong, China 250200

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