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3-Lobe Small Aeration Mini High Vacuum Root Blower Oil-Free

The 3-Lobe Small Aeration Mini High Vacuum Root Blower Oil-Free is a compact, oil-free roots blower with a three-lobe rotor that supplies steady airflow and strong vacuum/pressure for small aeration and pneumatic tasks. Its dry design prevents oil contamination, reduces maintenance, runs quietly, and supports continuous operation with good energy efficiency.

Usage scenarios (3 sentences):

- Ideal for aeration in aquaculture and small wastewater treatment systems—oxygenating fish ponds, aeration tanks, and septic units.

- Useful for light pneumatic conveying, vacuum filtration, and vacuum lifting in laboratories and small-scale manufacturing.

- Suited to packaging machines, ink/printing systems, greenhouse aeration, and any application needing clean, oil-free air or vacuum.

brand name:

QILEE

model number:

PRB-50

Shipping:

Support Sea freight

Payments:

L/C,D/A,D/P,T/T,Western Union,MoneyGram,OA

Lead Time:

1-1(sets):30(days),>1(sets):To be negotiated(days)

Place of Origin:

China

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Outlet

40mm-300mm(1.5 "-12");

Blade Material

Stainless Steel

Electric Current Type

Caliber(mm)

Rotary Speed(RPM)

850-1950

La(KW)

0.61-1.4

Pressure(mmAq)

One-Stage PRB type 8000mmAq(0.8kgf/cm2)

QS(m3/min)

0.6-160m3/min(21-5700CFM)

rated voltage

220V/380V

Dimensions(mm)

1652*735*906

pressure

Medium Pressure

power source

Pneumatic

application

Industrial Blower

Product name

High Vacuum Root Blower

place of origin

Shanghai, China

Compact Quiet Oilless Performance

The 3-lobe Small Aeration Mini High Vacuum Roots Blower delivers oil-free, high-efficiency aeration and vacuum performance with low noise and stable capacity, keeping sludge dewatering, chemical dosing and industrial RO systems running reliably. Its compact three-lobe shape, precision four-shaft machined rotors and simple, robust construction provide long life, minimal oscillation and consistent pressure across a wide flow range for predictable operation and easy maintenance. Packaged in standard export cartons with 3–20 day delivery, the space-saving style, standardized quality control and oil-free design minimize installation time and onsite contamination while maximizing uptime.

Compact Three-Lobe Oil-Free Vacuum

The 3-Lobe Small Aeration Mini High Vacuum Roots Blower is an oil-free displacement blower with two counter-rotating impellers, precision Four-Shaft manufactured rotors and tight impeller-to-body clearances, available in outlets 40–300 mm with capacities from 0.6–160 m3/min and one-stage pressures up to 8000 mmAq. It delivers completely oil-free air for aeration and vacuum duties, offering high efficiency, small capacity change with pressure, low oscillation and low noise for reliable, low-maintenance operation. Its simple, robust structure, special rotor profile and standardized quality control provide long service life, easy installation and dependable performance in sludge dewatering, dosing and other industrial processes.

Oil-Free 3-Lobe Vacuum Blower

The 3-lobe small aeration mini high vacuum Roots Blower is an oil-free displacement blower with two counter-rotating impellers that trap and compress air through precise clearances for dependable suction and discharge. Available with outlets from 40mm to 300mm and capacities from 0.6 to 160 m3/min, it delivers high efficiency, low noise and minimal capacity change across pressure variations. Its simple, robust construction, precision rotor manufacturing and strict quality control ensure long service life, low vibration and suitability for aeration, sludge dewatering and other industrial applications.

◎ Oil-free vacuum

◎ Four-shaft counterrotation

◎ Simple adjustable pressure

Compact High-Performance Oil-Free Blower

Built by a specialist brand focused on compact air-moving solutions, the 3-Lobe Small Aeration Mini High Vacuum Root Blower Oil-Free is engineered with precision-machined components and hardened casings to ensure stable performance and long service life. Features include an oil-free 3-lobe rotor design, compact footprint, high-vacuum aeration capability, low vibration and noise, corrosion-resistant materials, and easy maintenance, making it a versatile Roots Blower for aeration, vacuum, and pneumatic applications. The result is a high-efficiency, low-maintenance unit that lowers operating costs, improves process stability, and integrates smoothly into wastewater, laboratory, and industrial systems requiring clean, oil-free air.

Material introduction

The 3-lobe mini high-vacuum Roots Blower features a robust housing machined from cast or ductile iron for rigidity and vibration damping, with precision-ground rotors made of hardened alloy steel to maintain tight tolerances for oil-free performance. Internal components use high-grade chromium steel bearings and PTFE-based synthetic seals to ensure long life and contamination-free airflow, while end plates and fasteners are stainless steel for corrosion resistance. External surfaces receive powder-coat or anodized finishes, giving a material mix that balances strength, thermal stability, and low-noise operation for reliable aeration and vacuum service.

◎ Rugged Cast Iron

◎ Hardened Alloy Rotors

◎ Durable Seals Bearings

FAQ

What kinds of applications is the 3-Lobe Small Aeration Mini High Vacuum Root Blower Oil-Free best suited for?

This compact oil-free 3-lobe roots blower is ideal for small- to medium-scale aeration and low-to-moderate vacuum tasks. Typical uses include pond and aquaculture aeration, small wastewater and SBR aeration, lab or pilot-scale fermentation and aeration, pneumatic conveying of light powders and granules, vacuum assist for packaging or sample extraction, fountain and ornamental water features, and environmental sampling or remediation where oil-free air is required.

Can this blower provide both vacuum and pressure? How strong is the vacuum?

Yes — as a positive-displacement roots blower it can be used to deliver pressurized air or to create a shallow to moderate vacuum depending on how it is piped and installed. It is not a deep vacuum pump; it’s intended for processes that need relatively high flow at low-to-moderate pressure or vacuum. For applications requiring very high vacuum levels, a dedicated vacuum pump or multi-stage system is recommended.

The product is described as oil-free — does that mean it needs no maintenance?

“Oil-free” means there is no oil in the gas/air path, so discharged air is free of oil contamination (important for aquaculture, labs, food, etc.). It does not mean maintenance-free. Motor bearings, couplings and external components still require routine inspection and maintenance per the manufacturer’s schedule. Regular tasks include cleaning/replacing inlet filters, checking for leaks, ensuring proper ventilation and cooling, inspecting mounting and alignment, and following any greasing or service intervals specified in the manual.

What should I consider when installing the blower to ensure reliable operation?

Install per the manufacturer instructions: mount on a stable, level base with vibration isolators; provide adequate clearance and ventilation for cooling; use flexible connectors and proper piping to avoid stress on the casing; fit inlet and outlet filters or silencers to protect the blower from particulates and to reduce noise; include a pressure relief or bypass and check valves to prevent overpressure or reverse flow; confirm correct motor voltage, phase and rotation direction before startup; and avoid operating in ambient temperatures outside the specified range.

What troubleshooting steps should I take if the blower has low flow, overheats, or becomes noisy?

For low flow: check inlet/outlet filters for blockage, inspect piping for suction leaks or closed valves, and verify motor speed and electrical supply. For overheating: ensure adequate ventilation and cooling, confirm correct duty cycle, check for blocked discharge or closed bypass, and inspect bearings for wear. For excessive noise/vibration: check mounting and alignment, tighten loose fasteners, inspect flexible connectors and couplings, and look for foreign objects or worn internal parts. If problems persist, contact the supplier or an authorized service center.

Can I use this blower with humid gas, particulates, or corrosive/flammable gases?

The blower tolerates some humidity and small amounts of moisture typical in aeration and wastewater contexts, but it should not ingest liquids as this can damage internal components. Use separators or condensate traps if significant moisture is present. For particulate-laden streams, install proper inlet filtration and regular maintenance to avoid wear. Do not use the blower with toxic, highly corrosive, explosive, or flammable gases unless the unit and its materials are specifically rated and certified for those media — consult the manufacturer for compatibility and safety requirements.

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