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Application field: Scenarios such as wastewater treatment aeration, municipal engineering gas supply, and industrial waste gas oxidation treatment meet the demand for continuous and stable gas supply.
Flow Range
0.49-188.7 m³/min
Heat up
≤25 ℃
Pressure
9.8-108.6 kPa
Product Features
Relying on air suspension bearings to achieve non-mechanical contact operation, with low friction and low energy consumption
Compact structure, small footprint, easy to install, and a lubrication-free design that reduces maintenance costs
It operates with minimal vibration and low noise, maintaining stable air pressure and air volume output
Wide adjustment range, precisely adapting to air volume requirements under different working conditions
Turbine Blower
The air suspension high-speed centrifugal fan is directly driven by a high-speed Permanent Magnet Synchronous Motor (PMSM) connected with the impeller. The speed is precisely adjusted by a Variable Frequency Drive (VFD), with no gearbox or speed increaser structure.
The impeller is directly connected coaxially with the motor, and the shaft is supported by radial and thrust air suspension bearings.
As there is no mechanical contact and no lubrication system required during operation, the fan achieves high efficiency, low energy consumption, low noise, reliable operation and long service life.
The main unit is lubrication-free and maintenance-free; the system only requires regular inspection of filters and electrical components.
Industry Application
It is suitable for continuous and stable air supply scenarios such as wastewater treatment aeration, boiler combustion assistance in power plants, and industrial waste gas oxidation, meeting the requirements of high efficiency, low energy consumption, and low noise operation.
Save energy by more than 30%
Compared to traditional Roots blowers,
it significantly reduces operating energy consumption
Vibration speed ≤ 1.0mm/s
Low-vibration operation ensures
the system is stable and reliable
Noise ≤ 80 dB(A)
Low noise design, improving the
on-site working environment
Easy maintenance
Only the air filter needs to
be replaced regularly
CoreTechnology
Oil-free air suspension bearing
No lubricating oil system is required, avoiding oil pollution and reducing maintenance costs.
No mechanical contact during operation, resulting in extremely low friction loss.
Low vibration and low noise, suitable for high-speed and stable operating conditions.
Built-in precision air filtration system ensures clean operation of the bearing chamber.
It features high-reliability start-stop capability and has passed the start-stop life test of ≥ 100,000 cycles.
The bearing features high load-carrying capacity and long service life.
High-performance impeller
The impeller is precisely machined and manufactured using high-strength forged materials
Five-axis precision machining ensures high-precision molding of the aerodynamic profile of the impeller
The high surface finish effectively reduces aerodynamic losses and enhances overall efficiency
High-strength structural design ensures long-term stable operation under high-speed rotating conditions
The impeller is directly driven by the motor, achieving high mechanical transmission efficiency and minimal loss
The impeller material can be selected from aluminum alloy, stainless steel, titanium alloy, etc., depending on the operational conditions
High-efficiency permanent magnet motor
Adopts Permanent Magnet Synchronous Motor (PMSM), featuring high efficiency and fast response.
High power density design, compact structure and small footprint.
The frequency converter accurately controls the rotating speed, achieving stable adjustment of air volume and pressure.
The motor and impeller are directly coupled, resulting in extremely low mechanical transmission loss.
Compact structure design, suitable for stable operation under high-speed rotating conditions.
Variable Frequency Drive Control System
The frequency converter accurately adjusts the motor speed to realize on-demand control of air volume and pressure.
Built-in anti-surge control logic ensures stability during high-speed operation.
The input side is equipped with reactors and EMC filters to reduce grid harmonic interference.
The output side is equipped with dV/dt or sine wave filters to protect the insulation system of high-speed motors.
It features fast response to sudden load changes, maintaining stable system operation.
It supports remote communication interfaces for convenient centralized monitoring and coordinated control.
**High-speed Motor Cooling Technology
The high-speed permanent magnet synchronous motor (PMSM) features a high-power-density design, achieving stable and high output within a compact structure.
A proper cooling design is critical to the motor’s efficiency and long-term operational reliability.
This system adopts a forced air cooling structure. By optimizing the internal air ducts and heat dissipation paths, it effectively reduces the motor’s operating temperature, ensuring continuous and stable operation within the designed working range and extending the service life of the motor.
Specification and Performance Table
Flow range: 12–524 m³/min (standard operating conditions); temperature rise: ≤25 ℃; rated pressure rise range: 30–120 kPa.
| Diameter (mm) | Flow Range (m³/min) | Pressure Range(mbar) | Rotational Speed（r/min） | Power (kW) | Weight (kg) |
| 50 | 0.49-2.13 | 9.8-98 | 1100-1840 | 0.75-7.50 | 87-151 |
| 65 | 0.76-3.00 | 9.8-98 | 1100-1820 | 0.75-11.0 | 98-213 |
| 80 | 1.82-5.22 | 9.8-98 | 1140-1820 | 2.2-11.0 | 156-245 |
| 100 | 2.65-8.05 | 9.8-98 | 1060-1780 | 2.2-18.05 | 190-323 |
| 125 | 4.64-11.70 | 9.8-98 | 980-1750 | 3.00-30.0 | 285-512 |
| 125L | 7.81-17.02 | 9.8-58.8 | 980-1750 | 4.00-30.0 | 330-552 |
| 150 | 9.58 – 27.15 | 9.8-98 | 810-1730 | 7.50-75.0 | 471-896 |
| 175 | 16.65-35.67 | 9.8-58.8 | 970-1620 | 11.00-75.0 | 601-1090 |
| 200D | 22.89-44.40 | 9.8-98 | 850-1450 | 15.00-110.0 | 875-1765 |
| 200 | 25.34-59.20 | 9.8-98 | 810-1480 | 15.00-132.0 | 975-1876 |
| 250D | 32.95-70.56 | 9.8-58.8 | 810-1480 | 18.50-110.0 | 1080-1845 |
| 250 | 58.00-97.00 | 9.8-58.8 | 990-1480 | 30.00-220.0 | 1843-3269 |
| 300 | 84.00-114.00 | 9.8-108.6 | 990-1360 | 37.00-250.0 | 2333-4355 |
| 350 | 105.00-188.70 | 19.8-58.8 | 990-1360 | 37.00-220.0 | 2333-4355 |
Why choose Aogu
13-year Roots blower manufacturer, your trusted partner
13-year factory
Self-production of core components
The product design lifespan exceeds 10 years
IS09001\CE
Reliable quality and reasonable price
Over 500 sets in stock, with fast delivery
Question & Answers
Have Some Questions?
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Are you a factory or a trading company?
We are a factory with independent manufacturing capability, and we also engage in global trade. Our company was established in 2014.
What payment methods do you support?
We support multiple payment methods to provide a convenient transaction experience for our global customers. Common payment methods include T/T and L/C.
How can I choose the right Roots blower model?
Please let us know your requirements for flow rate, pressure, and conveying medium.
Do you offer customization services?
Yes, we do. Our Roots blowers can be customized according to specific customer requirements, including flow rate and pressure, material customization, and functional customization.
What about delivery time and shipping methods?
We usually complete shipment within 15–30 days after receiving payment confirmation, depending on the order quantity and customization needs. We offer multiple shipping methods, including sea freight and air freight, to ensure timely delivery.
What is the service life and warranty period?
Our Roots blowers are designed for a service life of more than 10 years. With proper operation and maintenance, the equipment can run stably for many years. We provide a 1-year warranty. During the warranty period, we offer free repair and replacement services. Beyond the warranty, we also provide continuous after-sales support and spare parts supply to ensure long-term stable operation of the equipment.
What after-sales services do you provide?
We provide installation guidance, commissioning services, training, spare parts supply, and remote support.
Phone
0531-83710967
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Our Support
We not only provide cost-effective products, but also respond promptly when you need support, with most spare parts kept in stock.
1-hour service response
Solution provided within 24 hours
If necessary, technical personnel will be dispatched the next day
Most spare parts are in stock
Welcome to contact us. We will provide a suitable blower solution based on your specific working conditions and requirements.
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Explore our high-performance Roots blowers now to meet your needs in various fields!
