Three-Blade Roots Fan

A three-lobe positive-displacement Roots blower for aquaculture aeration, sewage aeration and pneumatic conveying. The rotors never touch, so the gas path stays oil-free and the discharge clean.

Features

Two three-lobed rotors rotate in opposite directions with tightly controlled clearance — no metal-to-metal contact, no lubricant in the gas path
Integral impeller-and-shaft design: impeller does not wear, performance stays constant over long continuous runs
Low gas pulsation, low vibration and low noise
Reliable shaft seals — no oil leakage, clean gas output
Compact structure, high speed, high efficiency
Can also be operated as a vacuum pump

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Technical parameters

Specifications

MSR series Roots blower performance table — models 40 to 80

MSR series Roots blower performance table — models 100 to 175

MSR series Roots blower performance table — models 200 to 350

MSR series Roots blower features, construction diagram and parts list

MSR series Roots blower outline dimension drawing (V-belt drive)

Type	Positive-displacement Roots blower (three-lobe)
Gas purity	Oil-free — no contamination of aeration air
Duty	Continuous long-run operation
Noise / vibration	Low pulsation, low vibration
Use cases	Aquaculture aeration, sewage aeration, pneumatic conveying, vacuum

Also in this range

Intensive Roots Blower

A high-efficiency intensive Roots blower with involute rotor profile and forced lubrication — built for higher pressure boost and long, reliable service.

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Request a Quote alvin@zhongxinmsr.com