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Phone
15688871230
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Address
Chengdong Industrial Park, Zhangqiu District, Jinan City, Shandong Province
Shandong Longgu Heavy Industry Machinery Co., Ltd
15688871230
Chengdong Industrial Park, Zhangqiu District, Jinan City, Shandong Province
Longgu water-cooled Roots blower is a water-cooled structure Roots blower produced by our company. It has a large air volume and high air pressure. Its outstanding advantage is the use of a water-cooled heat dissipation structure, which has better heat dissipation efficiency compared to ordinary air-cooled ones. It can be used in high temperature working environments, effectively increasing the service life of Roots blowers. It has a wide range of applications and can be used in industries such as sewage treatment, tap water treatment, and petrochemicals. The conveying medium is clean air. The special sealed model can be used to transport special gases such as gas and sulfur dioxide. It has high operating efficiency, compact structure, low noise, and simple operation and easy maintenance. Longgu water-cooled Roots blower, with water-cooled design and operation, good heat dissipation, more stable operation, long service life, and low price.
The main use of water-cooled Roots blower: This series of blowers is widely used in sectors and industries such as power, chemical, steel smelting, cement, pneumatic conveying, sewage treatment, etc. The conveying medium is clean air.


1. The fan uses a pressure range of 58.8kPa to 98kPa.
2. The fan impeller adopts a composite profile with good meshing, low leakage, and high efficiency.
3. The material of the fan impeller is ductile iron, and the contour is machined by CNC machine tools. The gear accuracy is level 5, and imported bearings are used. The quality grade of the rotor dynamic balance is not lower than G6.3 grade. Therefore, the product has low noise and reliable operation.
4. The fan air volume can reach 0.78m3/min~198.1m3/min, with a wide coverage range and wide applicability.
5. The product has a compact structure, small volume, and light weight.
6. Long service life and easy maintenance.
Shandong Longgu Heavy Industry has modern wind turbine processing equipment such as fully automatic machining centers, horizontal machining centers, vertical machining centers, curve CNC, CNC boring and milling machines, and automatic inspection lines. It adopts advanced computer-aided design and manufacturing, CNC machining technology, computer-aided design, CAPP, CT and other information technologies to improve product design and manufacturing accuracy, shorten the design and manufacturing cycle, and achieve high machining accuracy and good machining quality. It has been exported to countries such as the United States, Malaysia, India, Kyrgyzstan, Singapore, Indonesia, etc.
As a type of positive displacement fan, there are two common cooling methods for water-cooled Roots blowers: air cooling and water cooling. The choice of cooling method mainly depends on the pressure. Generally, the higher the pressure, the worse the air cooling effect and the better the water cooling effect. Another water cooling method is to directly install the equipment in a water tank and cool the entire machine. In general, when the fan pressure is higher than 58.8kPa, a water-cooled Roots blower should be used. If the pressure is lower than this, a regular air-cooled Roots blower is generally used. A Roots blower with a pressure below 58kpa can generally use air cooling. When the pressure is greater than this value, water cooling is generally required, that is, a Roots blower with a water cooling system uses the circulating flow of water to cool the bearings and casing. At the same time, if the temperature of the conveyed medium is high, a condenser can also be installed to cool it down.
| model | Pressure (kPa) | Flow rate (m ³/min) | Power (kw) |
| LGSR50 type | 9.8-70 | 0.5-2 | 0.75-4 |
| LGSR65 type | 9.8-70 | 1-2.5 | 0.75-5.5 |
| LGSR80 type | 9.8-100 | 2.5-4 | 2.2-7.5 |
| LGSR100 type | 9.8-100 | 3-6 | 3-11 |
| LGSR125 type | 9.8-100 | 5-9.5 | 5.5-18.5 |
| LGSR150 type | 9.8-100 | 10-22 | 7.5-37 |
| LGSR175 type | 9.8-50 | 19.65-34 | 11-55 |
| LGSR200 type | 9.8-100 | 27-56 | 15-110 |
| LGSR250 type | 9.8-100 | 60-90 | 30-160 |
| LGSR300 type | 9.8-100 | 90-130 | 37-200 |
| LGSR350 type | 9.8-100 | 80-116.82 | 55-160 |