Zhangqiu Oasis Roots Blower Co., Ltd.

China Manufacturer with main products: Roots Blower, Three Lobes Roots Blower, water treatment, fish farming, Roots Vacuum Pump, Roots Air Blower, Aeration Blower, gas...

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Effluent/ Water Treatment Plant roots blower aeration blower SafeBuy Supplier Member

FOB Price: 1,000.00 - 25,000.00 USD/Set
Supply Ability: 5,000 Set/Sets per Month
Shipping: by sea shipment
Payment Terms: L/C, D/A, T/T, Western Union
In Stock
Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin: Shandong in China
Packaging Details: standard export packing

Quick Details

  • Rated Voltage: 380v
  • Rated Power: 7.5kw
  • Power Source: Electric Blower
  • Pressure: Low Pressure
  • Type: Roots Blower
  • Application: Air Blower
  • Model Number: LZSR50
  • Brand Name: Oasis
  • Application: waste water treatment
  • Type: three lobes roots blowerr







Roots blower


high pressure series

Flow rate

58.1-93.7 m3/min


63.7-98 kpa

Motor power

90-225 kw


50HZ, 60HZ


380v, 400v, 415v





Drive type

Direct coupling or belt transmission

Cooling type

Water cooling


2520-2600 kg

Package dimension


Standard Design and Costruction Features

· 100% oil free air delivery.

· Factory engineered, factory guaranteed, superior product.

· Alloy steel hardened and ground timing gears.

· Anti-friction bearings.

· Rigid one piece CI casing and side plates.

· Easy rotor timing setting.

· No vanes, valves or rings to wear.

· Large inlet and outlet connections for minimum loss.

· Improved volumetric efficiency andreduced opearting tempratures.

· Alloy steel toughened shafts ground to close tolerances.


· Water Treatment Plants for backwashing of filter/mixed beds.

· Effluent Treatment Plants for diffused aeration and agitation of effluent.

· Cement Plants for Blending, Aeration, Fluidization, Conveying.

· Aquaculture for maintaining the dissolved Oxygen level.

· Chemical Plants for supplying of process air.

· Electroplating Plants for Oil Free air agitation of electrolyte.

· Paper Plants Knife edge coating, drying, conveying. Vacuum pickup.

· Yarn Drying vacuum/pressure drying of yarn.

· Vacuum Moulding for creating quick vacuum.

· Polyster chip conveying & drying For transfer of polyster chips and other similar materials.

· Bag Filters for reverse cleaning of filter bags.

· Pneumatic Conveying vacuum, pressure and combination conveying of cereals, cement, husk, baggase, granules, powders and other similar material.

· Regeneration of dryers & molecular sieves.


Tri Lobe Blowers



The , because of having rotor tips disposed at 120o on each rotor, causes the rotor set to be much more resistant to angular deflection along it's length, than two lobed rotor sets, which have lobe tips disposed at 180o each - this extra "stiffness" provides less deflection at any load, thus minimizing possible rotor contact with both the cylinder and it's sister rotor during operation.

This same tip orientation provides for more even load distribution between the rotor and gear sets, while under normal load cycling - this feature enhances the life of the bearings and gears - the six smaller volume chambers per revolution of the Tri-Lobe vs. four larger chambers of the two lobe, increases the pulsation frequency, allowing pulsation magnitude to be limited, and reducing characteristic noise levels.

Oil Preventive Arrangement

Due to efficient & improved oil prevention arrangement, gas or air is delivered uncontaminated; oil free state unaffected by high temperatures. No shaft wear.

Splash oil lubrication

Assures improved bearing life and operational simplicity.

Tri-Lobe rotors

Involute contoured impeller profiles for maximum efficiency.

Air seals

air seals provide dependable non-wearing operation to minimize air leakage past the shafts.

Heavy-duty and ribbed housing

Reduce noise levels and Use of fins increases heat dissipation. 


Rotation of the impellers is synchronized by a pair of timing gears having helical, hardened and ground teeth.

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