Maglev Blower
Integrated Design of Maglev Blower
The blower features the integrated design of"electricalmechanical and electronic".lt comprises the pneumaticunit of ternary fow impeller and volute shell, thehigh-speed freguency inverter and the maglev motordrive unit,and the centra contro unit for motor suspension and blower operation.
Magnetic levitation blower is an advanced gas conveying equipment that uses magnetic levitation bearings, high-speed permanent magnet synchronous motors, and intelligent control systems. It achieves non-contact suspension and high-speed rotation of the rotor through electromagnetic force (with a speed of tens of thousands of revolutions per minute), combined with efficient ternary flow impeller design, to achieve energy-saving operation without friction and lubrication. Its core advantages include: energy efficiency (saving 20% -40% compared to traditional blowers), low noise (usually<80dB), long lifespan (designed for over 15 years), and maintenance free (no lubrication system required). The typical air volume range is 10-200m ³/min, with pressure coverage ranging from tens to hundreds of kilopascals and power ranging from tens to hundreds of kilowatts. It is widely used in fields such as sewage treatment, chemical industry, electricity, and food processing, especially suitable for scenarios with strict requirements for cleanliness, noise, and energy consumption.
The core selling point of the magnetic levitation blower lies in its revolutionary magnetic levitation bearing technology, which achieves non-contact suspension and high-speed operation of the rotor through electromagnetic force (with a speed of up to 20000 to 50000 revolutions per minute). Combined with an efficient ternary flow impeller design, it significantly improves energy efficiency (saving 20% -40% energy compared to traditional blowers), and has advantages such as ultra-low noise (<80 decibels), lubrication free maintenance (no mechanical friction loss), and ultra long service life (design life of 15-20 years). It also supports intelligent regulation to adapt to different working conditions, especially suitable for industrial scenarios such as sewage treatment, chemical industry, food and medicine that require strict energy consumption, cleanliness, and noise control.
Magnetic levitation blower, with its frictionless, high-efficiency and energy-saving technical characteristics, is widely used in various fields such as sewage treatment (aeration process saves 40% energy and has no oil pollution), chemical industry (corrosive gas transportation and reactor gas supply), food and medicine (clean air supply and biological fermentation), electronic manufacturing (clean workshop airflow control), as well as flue gas treatment, aquaculture, etc. It is particularly suitable for industrial scenarios with strict requirements for energy consumption, noise and cleanliness. Its typical applications include energy-saving renovation of urban sewage treatment plants, oxygen supply for biological pharmaceutical fermentation, etc. It can significantly reduce operating costs (such as saving 350000 kWh annually in a certain case) and improve process stability.
Evaluates the vibration displacement, current, and voltage ofa roatg machine that is equipped with maglev bearing.
1、Coil Current Assessment
The maximum current waveform l(t)measured by the magnetic coil at rated operation should be less than the currentcapacity of power amplifiers, and each coil current should bechecked against this standard.
2、Amplifier Voltage Evaluation
High coil current indicates that the carrying capacity hasbeen reached, and it is necessary to ensure that the effect ofvoltage saturation is not significant. During normal opera-tions,the slope of reference current should be less than themaximum slope that the amplifier can produce.
3、Assessment of Vibration Displacement
Contact between rotating parts and stationary parts of themaglev motor must be avoid during motorx27s operation. For vibration displacement,the lSO standard has a clear recommendation that a qualified machine should have the testresult fall in either zone A or Zone B as defined below.
Zone A he vibration displacement of newly adjusted ma-chine usually falls in this zone.
Zone B:Machines with vibration displacements falling in thiszone are generally considered to be able to operate for longperiods of time without limitation.
Zone C:Machines with vibration displacement falling in this zone are generally not considered to meet the requirements of long-term continuous operation. Generally,in such cases,the machine can be operated for a limited time until appropriate remedies are available.
Zone D:Machines with vibration displacements falling in thiszone are generally considered severely damaged.
It is a high-speed centrifugal blower whose rotor is suspended and driven by active magnetic bearings and a permanent magnet motor, with no mechanical contact in the rotating system. Air enters axially and is accelerated by the high-speed impeller to deliver large volumes of low-pressure air efficiently and quietly, with output precisely regulated by a variable speed drive.
Q2. How is it different from a traditional Roots (twin-lobe) blower? +
Roots blowers are positive-displacement machines with fixed output and poor efficiency at partial load, plus oil-lubricated gears and bearings that require regular maintenance. Magnetic levitation centrifugal blowers run contact-free, regulate output smoothly from 45% to 100%, and typically consume 30–50% less energy — the largest single cost saving in aeration applications.
Q3. What are the advantages of magnetic bearings? +
The rotor levitates and rotates without touching the stator, so there is zero mechanical wear, no lubricating oil, no gears and no bearing replacement for the machine's life. Bearings are actively controlled, enabling extremely high rotational speed with very low vibration and long, reliable service life.
Q4. What pressure and flow range do you cover? +
Our magnetic levitation centrifugal blowers typically deliver discharge pressures from 30 to 120 kPa (0.3–1.2 bar) with flows ranging from about 20 to 300 m³/min, covering most aeration and pneumatic conveying duties. Send us your required flow, pressure and site conditions and we will match the optimum model.
Q5. Which applications is it best suited for? +
It is ideal for continuous, large-volume low-pressure air: municipal and industrial wastewater aeration, aquaculture oxygenation, pneumatic conveying, desulfurization (flue gas), cement and chemical plants, food fermentation, textile and mining. Anywhere aeration or air blowing runs many hours a day, it delivers the lowest total cost of ownership.
Q6. How much energy can I save? +
Compared with a conventional Roots blower, typical energy savings are 30–50%, driven by high-efficiency motors, the aero efficiency of the impeller and precise variable speed regulation that matches air flow to real demand. For aeration plants running 24/7, the annual electricity saving often reaches tens of thousands of dollars and pays back the equipment difference within 1–3 years.
Q7. How noisy is it? +
Very quiet for its capacity — typically 70–85 dB(A) at 1 m with the standard acoustic enclosure, and much lower than Roots blowers. Low vibration means no special soundproofing room or heavy foundation is required; it can be installed indoors or outdoors.
Q8. What maintenance does it require? +
Almost none. There is no oil, no gearbox and no mechanical bearing wear. Routine work is limited to replacing the intake air filter, cleaning the cooler and periodic system checks. This cuts consumables, labor and downtime dramatically over the machine's lifetime.
Q9. How does the intelligent control system work? +
Each unit has a PLC + touchscreen controller offering auto start/stop, pressure or flow control, multi-unit load balancing, fault self-diagnosis and data logging. Optional cloud remote monitoring lets operators or our engineers view real-time status, energy use and alarms from anywhere, enabling predictive maintenance.
Q10. What is the flow turndown range? +
The variable speed drive provides smooth regulation from 45% to 100% of rated flow without surge or wasteful blow-off. In multi-unit stations, the controller automatically sequences machines so the whole system always runs at its best efficiency point.
Q11. What are the installation requirements? +
Installation is simple: a level platform or concrete pad with adequate clearance, a power connection and an air outlet duct. Because vibration is minimal, expensive anti-vibration foundations are not needed. We supply installation drawings, manuals and remote commissioning support.
Q12. Can it operate outdoors or in harsh environments? +
Yes. Outdoor and high-protection (IP54/IP55) versions are available, with an operating ambient range of roughly −10°C to 45°C and optional cooling packages for tropical, dusty or corrosive sites. We confirm site conditions and configure the right protection grade.
Q13. Can multiple blowers work in parallel? +
Yes. Our control system supports multi-unit stations with automatic load sharing, rotation and failure takeover, so aeration keeps running even if one unit needs service. Integration with existing SCADA/PLC systems and cloud platforms is available.
Q14. What is the typical payback period? +
Thanks to energy savings and near-zero maintenance, payback is typically 1–3 years depending on operating hours, electricity price and the technology being replaced. We provide a free site-specific energy audit and payback calculation before you decide.
Q15. Do you support customization and OEM/ODM? +
Yes. As the manufacturer, we customize voltage/frequency (e.g. 380V/660V/10kV, 50/60Hz), control and communication protocols, cooling options, skid-mounted packages and enclosure types, plus OEM/ODM branding. We also engineer complete aeration systems with piping and diffusers.
Q16. What certifications and after-sales support do you provide? +
Our factory is ISO 9001 certified, and the blowers carry CE certification with additional certificates available for your market. We offer a 12–24 month warranty, 24/7 remote diagnostics and support, installation and commissioning guidance, operator training, and long-term spare parts supply (typically dispatched within 3–7 days).
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