Special Products · Tianrui
Maglev Blowers
Tianrui magnetic levitation turbo blowers for aeration and pneumatic conveying — active magnetic bearings, a direct-drive permanent magnet motor and no lubrication. Tianrui rates them at 30–40 % less power than a Roots blower.
Shandong Tianrui Heavy Industry · China
By application
Where a maglev blower pays off
Blowers run around the clock, so the electricity bill is most of their life-cycle cost.
Wastewater aeration
Air for the aeration tanks of municipal and industrial sewage plants, so the biology can break down the load.
Pneumatic conveying
Oil-free air to convey raw materials, dust and food products in cement, lime, chemical and food plants.
Process air
Paper, brewing, textile, dairy, power, electronics, leather and electroplating plants.
Product range · 01
How it works
The impeller sits directly on the rotor of a high-speed permanent magnet motor — no gearbox, no belts, no couplings.
Two radial and two axial active magnetic bearings hold the rotor. Position sensors report its position to the controller, which corrects the magnetic forces in real time, so the shaft never touches the bearings.
A frequency converter sets the speed; a fully enclosed air cooling system keeps the motor at a stable temperature. The routine maintenance is replacing the inlet filter.
Product range · 02
Why a maglev blower
Compared with a Roots blower.
Energy
- 30–40 % less power than a Roots blower (Tianrui figures)
- Variable speed with several control modes
Low noise
- Below 80 dB, against about 120 dB for a Roots blower
- No friction in the bearings
No lubrication
- No oil system and no oil change
- Clean, oil-free air
Long life
- Designed for a service life of 20 years
- Modular design, fast service
Remote monitoring
- Operating status and fault warnings online
- Can run without staff on site
Product range · 03
Models
Eleven sizes from 37 to 400 kW.
| Model | Flow (m³/min) | Pressure (kPa) | Motor (kW) |
|---|---|---|---|
| TR037 series | 15–55 | 20–80 | 37 |
| TR055 series | 25–70 | 20–80 | 55 |
| TR075 series | 25–75 | 20–80 | 75 |
| TR090 series | 25–100 | 20–80 | 90 |
| TR110 series | 40–100 | 20–80 | 110 |
| TR150 series | 30–180 | 20–80 | 150 |
| TR185 series | 30–190 | 20–80 | 185 |
| TR220 series | 70–200 | 20–80 | 220 |
| TR300 series | 150–300 | 20–80 | 300 |
| TR350 series | 175–355 | 20–80 | 350 |
| TR400 series | 190–410 | 20–80 | 400 |
All series: 20–80 kPa, air cooled. Model = TR + motor power in kW (TR055 = 55 kW). 90–140 kPa versions on request, with a longer delivery time.
Product image and data: Shandong Tianrui Heavy Industry · tianrui99.com
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