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NSRH-100 Roots Blower
Greentech International (Zhangqiu) Co., Ltd is the professional roots blower supplier. The NSRH type clover spiral Roots blower on the basis of the manufacture and sale of a Roots blower for many years the development of new products using new technology.
The machine through the use of new lines on the impeller, the overall adiabatic efficiency and volumetric efficiency is further improved, and is excellent particularly in the fan of the air volume and pressure characteristics.
So-called excellent efficiency is the amount of heat generation of the wind turbine itself is reduced, i. e. The temperature rise dropped, the various models using the exhaust pressure in the dry state is up to 1kgf/cm2.
The machine through the use of new lines on the impeller, the overall adiabatic efficiency and volumetric efficiency is further improved, and is excellent particularly in the fan of the air volume and pressure characteristics.
So-called excellent efficiency is the amount of heat generation of the wind turbine itself is reduced, i. e. The temperature rise dropped, the various models using the exhaust pressure in the dry state is up to 1kgf/cm2.
Product Introduction
Product Parameter
Product Application
Three Lobe Roots Type Air Blower
Product Overview
The NSRH-100 Roots Blower is a three-lobe positive displacement blower designed to deliver stable airflow for a wide range of industrial applications. Manufactured by Greentech International (Zhangqiu) Co., Ltd, it incorporates an optimized impeller profile and advanced manufacturing technology to improve volumetric efficiency and operating stability. The compact structure and reliable performance make it suitable for continuous-duty applications that require consistent air delivery.
Optimized Three-Lobe Rotor Design
Improved Airflow Performance
The three-lobe rotor design helps reduce airflow pulsation compared with conventional two-lobe blowers, providing smoother air delivery during operation. The optimized impeller profile also contributes to improved volumetric efficiency, making the blower suitable for systems requiring stable pressure and flow.
Stable Pressure Characteristics
The blower is designed to maintain consistent airflow under varying operating conditions. Its pressure characteristics make it suitable for applications such as aeration, pneumatic conveying, combustion air supply, and industrial ventilation where reliable performance is required.
Efficient Operating Performance
Enhanced Adiabatic Efficiency
By optimizing the impeller geometry and internal airflow path, the blower achieves improved adiabatic efficiency. Reduced internal energy loss helps lower heat generation during compression and supports stable long-term operation.
Lower Operating Temperature
The efficient compression process reduces temperature rise during operation. Lower discharge temperatures can help improve system reliability and reduce thermal stress on components when operating within the recommended pressure range.
Industrial Applications
Wastewater Aeration
The blower provides continuous airflow for activated sludge systems, oxidation ditches, SBR processes, and other biological wastewater treatment applications. Stable aeration helps maintain dissolved oxygen levels required for efficient biological treatment.
Pneumatic Conveying
It is suitable for conveying powders and granular materials such as flour, cement, plastic pellets, grain, and feed through positive pressure conveying systems. Consistent airflow supports reliable material transportation in industrial production.
High-Pressure Air Supply
The blower can be used in applications requiring relatively high discharge pressure, including combustion air supply, industrial drying, cooling systems, and process air delivery. Its stable pressure performance makes it suitable for continuous industrial operation.
Vacuum Applications
When configured for vacuum duty, the blower can be used in vacuum conveying, filtration, dehydration, vacuum adsorption, and other industrial processes requiring a reliable vacuum source.
Reliable Construction
Precision Manufacturing
Key components are manufactured with precision machining processes to ensure accurate rotor clearance and smooth operation. This helps reduce internal leakage and contributes to consistent performance throughout the service life of the equipment.
Continuous Operation
The blower is designed for continuous industrial use under recommended operating conditions. Its simple mechanical structure allows convenient routine inspection and maintenance, making it suitable for various industrial air supply systems.
| NSRH-100 Performance table | ||||||||||||||||||||||||||||||
| Speed | Pressure rise（kgf/cm2） | |||||||||||||||||||||||||||||
| 0.10 | 0.15 | 0.20 | 0.25 | 0.30 | 0.35 | 0.40 | 0.45 | 0.50 | 0.55 | 0.60 | 0.65 | 0.70 | 0.75 | 0.8 | ||||||||||||||||
| 9.8kpa | 14.7kpa | 19.6kpa | 24.5kpa | 29.4kpa | 34.3kpa | 39.2kpa | 44.1kpa | 49kpa | 53.9kpa | 58.8kpa | 63.7kpa | 68.6kpa | 73.5kpa | 78.4kpa | ||||||||||||||||
| Qs | La | Qs | La | Qs | La | Qs | La | Qs | La | Qs | La | Qs | La | Qs | La | Qs | La | Qs | La | Qs | La | Qs | La | Qs | La | Qs | La | Qs | La | |
| 1060 | 4.57 | 1.35 | 4.42 | 1.83 | 4.27 | 2.31 | 4.07 | 2.72 | 3.95 | 3.10 | 3.84 | 3.55 | 3.70 | 3.97 | 3.57 | 4.46 | 3.48 | 4.95 | 3.35 | 5.42 | 3.28 | 5.86 | 3.17 | 6.36 | 3.07 | 6.71 | ||||
| 1140 | 4.97 | 1.52 | 4.82 | 2.03 | 4.65 | 2.46 | 4.52 | 2.94 | 4.36 | 3.41 | 4.25 | 3.93 | 4.12 | 4.38 | 4.03 | 4.86 | 3.90 | 5.38 | 3.83 | 5.85 | 3.71 | 6.38 | 3.65 | 6.90 | 3.51 | 7.32 | ||||
| 1220 | 5.34 | 1..68 | 5.15 | 2.22 | 5.03 | 2.70 | 4.87 | 3.23 | 4.76 | 3.71 | 4.63 | 4.22 | 4.53 | 4.76 | 4.44 | 5.27 | 4.32 | 5.76 | 4.25 | 6.35 | 4.13 | 6.90 | 4.06 | 7.52 | 3.93 | 8.02 | ||||
| 1310 | 5.73 | 1.87 | 5.60 | 2.43 | 5.44 | 2.96 | 5.34 | 3.52 | 5.18 | 4.05 | 5.05 | 4.63 | 4.95 | 5.18 | 4.86 | 5.77 | 4.74 | 6.30 | 4.66 | 6.95 | 4.55 | 7.48 | 4.43 | 8.15 | 4.36 | 8.56 | ||||
| 1460 | 6.53 | 2.18 | 6.35 | 2.75 | 6.25 | 3.40 | 6.13 | 3.95 | 6.00 | 4.62 | 5.87 | 5.22 | 5.78 | 5.87 | 5.66 | 6.54 | 5.58 | 7.10 | 5.45 | 7.76 | 5.39 | 8.45 | 5.28 | 9.23 | 5.19 | 9.73 | 5.10 | 10.44 | ||
| 1540 | 6.91 | 2.40 | 6.79 | 3.04 | 6.64 | 3.67 | 6.55 | 4.32 | 6.40 | 4.98 | 6.30 | 5.65 | 6.19 | 6.30 | 6.07 | 6.97 | 5.99 | 7.61 | 5.89 | 8.35 | 5.81 | 9.00 | 5.70 | 9.75 | 5.63 | 10.35 | 5.55 | 11.12 | ||
| 1680 | 7.63 | 2.78 | 7.47 | 3.45 | 7.36 | 4.18 | 7.26 | 4.92 | 7.13 | 5.62 | 7.04 | 6.33 | 6.92 | 7.08 | 6.84 | 7.85 | 6.73 | 8.50 | 6.65 | 9.32 | 6.55 | 10.03 | 6.44 | 10.77 | 6.37 | 11.50 | 6.28 | 12.21 | 6.20 | 12.61 |
| 1780 | 8.09 | 3.05 | 7.94 | 3.83 | 7.84 | 4.56 | 7.75 | 5.35 | 7.62 | 6.10 | 7.54 | 6.84 | 7.42 | 7.63 | 7.34 | 8.45 | 7.23 | 9.15 | 7.16 | 9.95 | 7.06 | 10.71 | 6.95 | 11.52 | 6.88 | 11.98 | 6.79 | 13.07 | 6.70 | 13.45 |
| 1880 | 8.57 | 3.33 | 8.43 | 4.15 | 8.36 | 4.93 | 8.23 | 5.77 | 8.15 | 6.55 | 8.03 | 7.35 | 7.95 | 8.18 | 7.88 | 9.03 | 7.77 | 9.80 | 7.65 | 10.64 | 7.6 | 11.42 | 7.51 | 12.25 | 7.43 | 13.02 | 7.33 | 13.86 | 7.25 | 14.62 |
| 1980 | 9.07 | 3.60 | 8.94 | 4.44 | 8.85 | 5.31 | 8.73 | 6.15 | 8.65 | 7.01 | 8.58 | 7.92 | 8.46 | 8.75 | 8.39 | 9.65 | 8.28 | 10.45 | 8.22 | 11.32 | 8.12 | 12.13 | 8.06 | 13.05 | 7.95 | 13.85 | 7.85 | 14.72 | 7.78 | 15.65 |
Water Treatment and Environmental Protection Field
Wastewater Treatment
The NSRH Roots Blower is widely used in wastewater treatment systems to provide a continuous and stable air supply for biological processes. It supports aeration in activated sludge systems, SBR processes, and oxidation ditches, helping maintain dissolved oxygen levels required for aerobic microorganisms. The blower can also be used in dissolved air flotation systems, filter backwashing, and sludge digestion applications, contributing to stable operation throughout the treatment process.
Aquaculture
The blower supplies air for pond aeration, helping maintain suitable dissolved oxygen levels for fish, shrimp, sea cucumber, and other aquatic species. Stable oxygen delivery supports healthy growth conditions and is suitable for both freshwater and marine farming systems.
Industrial Processes and Pneumatic Conveying
Pneumatic Conveying Systems
The blower is suitable for positive pressure conveying of powders and granular materials, including flour, cement, plastic pellets, grain, and animal feed. It can also be used as a vacuum source in automatic feeding systems, providing reliable airflow for continuous material handling in industrial production.
Combustion and Combustion Support
It provides combustion air for industrial boilers, burners, incinerators, and other combustion equipment. A stable air supply helps maintain proper combustion conditions and supports consistent equipment operation.
Drying and Cooling
The blower can be applied in fluidized bed drying systems by supplying airflow that evenly suspends granular materials during the drying process. It is also suitable for cooling newly produced products such as plastic pellets and metal castings through continuous air circulation.
Printing and Packaging
In printing and packaging equipment, it supplies stable airflow for paper feeding, drying, embossing, labeling, filling, and bag-forming processes. Continuous air delivery helps maintain smooth operation of automated production lines.
Other Industry Applications
Food and Pharmaceuticals
The blower is used in fermentation processes such as yeast, amino acid, and antibiotic production, where a stable air supply is required. It can also be applied in cleanroom material conveying and airflow circulation when configured to meet relevant hygienic requirements.
Power and Metallurgy
In power plants and metallurgical facilities, it provides air for dust collection systems, electrostatic precipitators, and cooling applications. It is also used as an air source for small and medium-sized blast furnaces and cupolas.
Chemical and Petroleum
It can be used for reactor aeration, gas circulation, and process gas conveying in chemical and petroleum industries. The stable airflow makes it suitable for a variety of industrial process requirements within its operating specifications.
Vacuum Applications
When operated as a vacuum source, the blower can be used in vacuum adsorption, filtration, dehydration, and material handling systems. Typical applications include vacuum extruders in brick manufacturing and central vacuum systems for industrial facilities.
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