NTB Series · 22 – 450 kW

Energy that doesn't push back.

Name: NordicLev NTB Maglev Turbo Blower
Brand: NordicLev

A new-generation energy-saving blower built on maglev suspension, a high-speed permanent-magnet synchronous motor and a 3-D flow impeller. Oil-free, friction-free, and 30 % more efficient than traditional Roots blowers — at under 80 dB.

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22–450

kW range

12–400

m³/min flow

< 80 dB

Noise level

Specification types

Model meaning: brand-power (kW). Example: NTB055 series = NT brand, B = blower, 55 kW.

Model	Flow (m³/min)	Pressure (kPa)	Motor power (kW)	Cooling
NTB022	12–25	40–100	22	AC
NTB037	15–45	40–120	37	AC
NTB045	20–60	40–100	45	AC
NTB055	25–70	40–100	55	AC
NTB075	30–90	40–100	75	AC
NTB090	40–100	40–100	90	AC
NTB110	45–120	40–120	110	AC
NTB132	50–150	40–120	132	AC
NTB150	70–190	40–120	150	AC
NTB185	90–220	40–120	185	AC
NTB200	100–250	40–120	200	AC
NTB220	110–270	40–120	220	AC
NTB250	120–310	40–120	250	AC
NTB300	150–380	40–120	300	AC
NTB350	170–320	60–120	350	AC
NTB400	200–360	60–120	400	AC
NTB450	220–400	60–120	450	AC

Performance comparison

How the maglev turbo blower stacks up against traditional equivalents.

	Roots blower	Single-stage centrifugal	Air-suspension blower	Maglev Blower
Air volume turndown	Adjustable (w/ VFD)	50–100 %	65–100 %	30–100 %
Friction	Yes	Yes	Yes	No
Frequent start-up	Yes	Yes	No	Yes
Noise	> 100 dB	90–100 dB	75–85 dB	≤ 80 dB
Vibration	Very large	Medium	Very small	Very small
Lubrication	Yes	Complex system	No	No
Maintenance	Regular	Specialist	Filter replacement	Filter replacement
Footprint	Larger	Larger	Small	Small
Efficiency	Low	Low–medium	High	High

Frequently asked questions

About the Maglev Blower.

How much energy does the NordicLev maglev blower save compared to a Roots blower?

On average 30 % less energy than a Roots blower, with operating noise reduced to ≤ 80 dB and zero oil consumption. Actual savings depend on duty cycle and discharge pressure.

What is the bearing life of the NTB maglev blower?

The active magnetic bearings have no metal-on-metal contact and no wear. Typical bearing life under continuous operation is 20+ years, with no scheduled bearing replacement.

Is the NordicLev blower oil-free?

Yes. The maglev bearing system eliminates the need for lubricating oil in the rotor assembly. Air delivery is therefore completely oil-free, making it suitable for sensitive process applications.

What flow and pressure range does the NTB series cover?

The NTB series covers 12 – 400 m³/min flow and 40 – 120 kPa discharge pressure, in 22 to 450 kW motor sizes.

How does part-load efficiency compare to traditional blowers?

Variable-frequency PMSM drive maintains high efficiency across the full duty curve — unlike Roots or single-stage centrifugal blowers, which drop sharply at part load. NordicLev units stay at peak efficiency from 30 % to 100 % flow turndown.