Why More Wastewater Treatment Plants Are Choosing Maglev Blowers: RAETTS Completes Installation of 3×95kW Units
As wastewater treatment plants around the world pursue higher efficiency, lower operating costs, and more stable aeration performance, one trend has become increasingly clear: Maglev blowers are rapidly becoming the preferred choice for modern WWTPs.
RAETTS recently completed the installation and commissioning of three 95kW Maglev blowers for a wastewater treatment facility, delivering exceptional aeration performance, stable operation, and significant energy savings. This project once again highlights why magnetic levitation technology is emerging as the new global standard for aeration equipment.
1. The Shift Toward Advanced Aeration Technology
Traditional blower types—such as Roots blowers and standard turbo blowers—have long been used in WWTP aeration systems. However, they face recurring challenges:
-
High energy consumption
-
Frequent maintenance
-
Mechanical wear and lubrication issues
-
Instability during load fluctuations
As WWTPs upgrade to DO-based intelligent aeration and require faster control response, Maglev blowers provide the ideal solution with unmatched stability, precision, and efficiency.
2. RAETTS Maglev Blower: Built on Core Technology and Independent R&D
The key reason wastewater treatment operators increasingly specify Maglev blowers lies in the combination of cutting-edge engineering, contact-free magnetic bearings, and intelligent control algorithms.
1) High-Efficiency PMSM (Permanent Magnet Synchronous Motor)
At the core of RAETTS Maglev blowers is an ultra-efficient PMSM, delivering higher motor efficiency, lower heat loss, and much stronger torque density. The result is smoother operation and significantly reduced power consumption compared to conventional motors.
2) Advanced 3D (Three-Dimensional) Impeller Design
RAETTS employs a precision 3D impeller optimized through CFD and aerodynamic simulation.
This design ensures:
-
Higher pressure output
-
Wider operating range
-
Stable flow even under fluctuating wastewater aeration loads
The impeller and PMSM work together as a highly optimized aerodynamic system.
3) Electronic Magnetic Bearings — Zero Contact, Zero Wear
Maglev blowers eliminate physical contact entirely. With the rotor levitating in a magnetic field, operators benefit from:
-
No lubrication
-
No mechanical friction
-
No bearing replacement
-
No contamination risks
This dramatically reduces maintenance cost and downtime—critical for facilities operating 24/7.
3. RAETTS Proprietary Maglev Controller: The Hidden Advantage
One of RAETTS’ greatest differentiators is its fully self-developed Maglev control system, not sourced from external suppliers.
This includes:
-
Hardware
-
Magnetic field control system
-
High-speed algorithms
-
Real-time suspension monitoring
This independent R&D capability ensures superior reliability and offers greater flexibility to adapt to wastewater operating conditions.
4. UFRC Algorithm + Self-Sweep Frequency = Unmatched Operating Stability
For aeration systems, stability is not optional—it’s essential.
RAETTS’ proprietary algorithms give Maglev blowers unmatched dynamic stability:
⭐ UFRC (Ultra-Frequency Response Compensation)
Predicts and corrects rotor imbalance before it becomes a vibration event.
⭐ Self-Sweep Frequency Control
Automatically scans and adjusts suspension frequency to eliminate potential resonance or vibration risks.
Together, these innovations deliver:
-
Consistent smooth operation
-
No vibration alarms
-
Extremely low failure rates
-
Long-term reliability even under varying DO demand
This is why so many engineering consultants now specify Maglev blowers for premium WWTP projects.
5. Real Project Performance: 3×95kW RAETTS Maglev Blowers
In the latest installation, the three 95kW Maglev blowers demonstrated excellent on-site performance:
-
Stable aeration with rapid DO control response
-
High efficiency across all flow ranges
-
Significantly reduced energy consumption
-
Quiet and clean operation suitable for urban WWTPs
Energy savings are typically 30–45% compared with Roots blowers and 15–25% compared with traditional turbo blowers.
6. Why Maglev Is Becoming the First Choice for WWTP Upgrades
Across engineering firms and WWTP owners, Maglev is increasingly being recognized as the most advanced blower technology available today, thanks to:
-
✔ Zero mechanical wear
-
✔ High efficiency at all loads
-
✔ Extremely stable aeration output
-
✔ Fast response for DO control
-
✔ Lowest maintenance cost
-
✔ Reliability even under frequent start–stop cycles
As WWTPs move toward intelligent operation and strict carbon reduction policies, Maglev blowers are becoming the preferred solution for long-term energy savings and sustainable operation.
Conclusion: Maglev Is Not the Future — It Is the New Standard
The installation of RAETTS’ three 95kW Maglev blowers demonstrates how magnetic levitation technology is reshaping aeration systems in wastewater treatment.
With PMSM motors, 3D impellers, electronic magnetic bearings, and advanced RAETTS-designed UFRC + self-sweep frequency control, Maglev blowers offer:
-
Higher efficiency
-
Greater stability
-
Lower maintenance
-
Superior lifecycle cost savings
For WWTPs upgrading aeration systems, Maglev technology is the choice that delivers long-term value and unmatched operational reliability.
If you want performance data, case studies, or a comparison with Roots/turbo blowers for your project, RAETTS is ready to support.
E-mail: sales@raettsgroup.com
WhatsApp: +86 137 1270 2424
