? Product Introduction
The belt driven Roots blower is driven by the belt, which is different from the direct drive Roots blower.
It is also composed of four major parts: casing, wallboard, impeller, inlet and outlet muffler.
Casing: mainly used to support wallboard, impeller, muffler and fixation.
Wall plate: mainly used to connect the casing and the impeller, support the rotation of the impeller, and play the role of end sealing
Impeller: it is the rotating part of Roots blower, which is divided into two leaves and three leaves. Now, the three leaf blower has gradually replaced the two leaf Roots blower due to its advantages such as less air pulsation, less noise and smooth operation than the two leaf blower.
Muffler: used to reduce the noise generated by the inlet and outlet airflow pulsation of Roots blower.
? Model parameters
Model parameter table of belt driven Roots blower model (xqs Roots blower) | Air volume range (m?/min) | Motor power range (kw) | Outlet diameter | Fan weight (KG) | Pressure range | Voltage |
Sr50 | 0.65-2.13 | 0.75-4 | DN50 | 87-119 | 9.8kp-58.8kp | 380V |
Sr65 | 0.94-3.00 | 0.75-5.5 | DN65 | 98-145 |
Sr80 | 2.34-5.22 | 2.2-7.5 | DN80 | 156-200 |
Sr100 | 3.25-8.05 | 2.2-15 | DN100 | 190-297 |
Sr125 | 5.35-11.7 | 3-18.5 | DN125 | 285-401 |
Sr150 | 10.37-27.15 | 7.5-45 | DN150 | 471-706 |
Sr175 | 19.65-38.67 | 11-75 | DN175 | 601-1090 |
Sr200 | 27.65-57.14 | 15-90 | DN200 | 975-1490 |
Sr-225 | 32.95-70.56 | 18.5-110 | DN225 | 1080-1845 |
Sr-250s | 35.83-76.72 | 18.5-132 | DN250 | 1115-1936 |
Sr-250/300 | 61.4-114.8 | 30-160 | DN250/300 | 1843-2761 |
Sr-300L/300L1 | 104.1-183.6 | 37-200 | DN300 | 2031-3440 |
Sr-350/350L | 105.5-226 | 37-280 | DN350 | 3870-5700 |
Because the field working conditions of each Roots blower application field are different, please select the model according to the actual parameters by professional technicians of Roots blower manufacturers. If you don't know something about it, please contact us
? Factory photo


? Performance characteristics
Features of belt driven Roots blower:
(1) The operating pressure of Roots blower fan is 9.8kpa-58.8kPa.
(2) The fan impeller adopts compound profile, with perfect engagement, less leakage and high efficiency.
(3) The impeller of Roots blower is made of nodular cast iron, the contour is processed by CNC machine tools, the gear is of Class 5 accuracy, imported bearings are used, and the rotor dynamic balance quality is not lower than Class G6.3, so the product has low noise and reliable operation.
(4) The fan air volume can range from 1.2 m3/min to 179.5 m3/min, with large coverage and wide application range.
(5) The whole product has compact structure, small volume and light weight.
(6) Long service life and simple maintenance.
? Accessories include
Universal base, belt cover, fan pulley, motor pulley, V-belt, safety valve, pressure gauge, air inlet silencer, air outlet silencer, anchor bolt, check valve, elastic joint, gear oil.
? application area
It is widely used in sewage treatment, aquaculture, pneumatic conveying, vacuum packaging, coal washing, combustion support, pressurization, casting, mining, metallurgy, chemical industry, light industry, building materials, power, flour, sand blasting, vacuum, etc.
? summary
Belt driven Roots blower, the speed of the main shaft can be adjusted according to the size of the motor and pulley, and can be matched and combined according to their own needs when using. Belt driven blower is popular in the market, mainly because of its large flow range, large pressure range, simple operation and convenient maintenance.
? Ordering Instructions
When you need to purchase belt driven Roots blower, please tell us the following items in detail:
1. Use of Roots blower: sewage treatment, aquaculture, pneumatic conveying, etc
2. Specifications of Roots blower: caliber, required air volume, pressure rise, etc
3. Transmission medium: air, gas, biogas and other corrosive gases
4. Equipment requirements: form, cycle number, voltage, single-phase or three-phase
5. Equipment service conditions: indoor or outdoor, ambient temperature
6. Fan accessories
7. Fan color (with or without specified color
8. Note: the allowable range of specified flow and pressure rise (vacuum degree) is ± 5%
Welcome to purchase our company's fans and put forward valuable suggestions
Address: Chengdong Industrial Park, Zhangqiu District, Jinan, Shandong
label: Roots Blower , Belt driven Roots blower
If you need Roots blower with direct drive Please check