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B-Tohin Machine (Jiangsu) Co., Ltd.
B-Tohin Machine (Jiangsu) Co., Ltd.

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Water CoolingThree Lobe Roots Blower 1000rpm 75kw for Water treatment,Wastewater treatment

Water CoolingThree Lobe Roots Blower 1000rpm 75kw for Water treatment,Wastewater treatment

  • Water CoolingThree Lobe Roots Blower 1000rpm 75kw for  Water treatment,Wastewater treatment
Water CoolingThree Lobe Roots Blower 1000rpm 75kw for  Water treatment,Wastewater treatment
Product Details:
Place of Origin: CHINA
Brand Name: BK
Certification: ISO9001 / ISO14001/CE
Model Number: BKW8024S
Payment & Shipping Terms:
Minimum Order Quantity: 1 set
Price: USD 9005- USD 12320
Packaging Details: EXPORT WOODEN CASES
Delivery Time: 45 WORK DAYS
Payment Terms: L/C, T/T
Supply Ability: 200 SETS PER MONTH
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Detailed Product Description
Name: BKW8024S Material: Cast Iron
Air Capacity: 45.01m3/Min Pressure: 60Kpa
Motor Power: 75KW Blower RPM: 1000
Outlet Size: DN200(8") Cooling Type: Water
Voltage&Frequency: 380/400/415/440V, 3PHASES, 50/60HZ Application: Water Treatment,Wastewater Treatment
High Light:

1500rpm Three Lobe Roots Blower


Water Cooling Three Lobe Roots Blower


30kw roots rotary lobe blower

Application of Roots blower:

Such as:



Water treatment: Roots blowers find applications in water treatment facilities for processes such as aeration in water and wastewater treatment, ozone generation for disinfection, and providing air for dissolved air flotation systems.


Wastewater treatment: Roots blowers are commonly used in wastewater treatment plants for aeration purposes. They provide the necessary air supply for the biological treatment processes, such as activated sludge systems, where microorganisms break down organic matter in the wastewater.


Aquaculture and fish farming: Roots blowers are utilized in aquaculture and fish farming systems for aeration and oxygenation of water. They help maintain optimal dissolved oxygen levels for aquatic organisms, promoting their growth and survival.


Water Cooling Type Three Lobe Roots Blower Bkw8024 , Durable Aeration Blower


About BKW

The screw blower may look similar to a roots blower, however, it functions differently. The roots blower acts like a pump for the air as it goes into the motor, whereas the screw blower is more like an air compressor in how it forces the atmosphere into the engine.


BKW seires Roots Blower inherits most components from BK series, it adopts water cooling in bearing cover, which can reduce the temperature of bearing when working and prolong the longevity, also it has a larger pressure capability.


Model BKW8024S
Air capacity 31.89m3/Min-50.67m3/Min
Discharge differential pressure 60-100KPA
Rotary speed 800rpm-1100rpm
Motor type 55KW-90KW
380/400/415/440V, 3PHASES, 50/60HZ
Motor brand Standard: Siemens Beide or Wannan motor
Siemens and ABB motor for your option
Installation type Standard: horizontal type.
Vertical type available for your option
N.W. of blower without motor 1120 kg
Packing size Approx. 2.35*1.65*2.60m (length*width*height)
Features 1. Helical type timing gears for smooth operation
2. Compact, flexibility in installation gives users more choices.
3. Integral structure of impeller and shaft for stable and smooth running
4. Adopt imported oil seals made from fluoric rubber with high wear resistance and high-temperature resistance.
5. Low noise, low vibration and energy consumption.


Description of blower parts:

Casing Made of Casting iron HT200
ENDLESS structure adopted for improving efficiency, one-time machined by CNC center with high precision
Rotor (Shaft and impeller) Made of Casting iron QT500
The impeller and shaft is cast as an integral part.
Adopting NC planer for machining to achieve high precision
Gear end bearing Made of GCr15
NSK brand, double-row angular contact ball bearing, capable of supporting axial load
Drive end bearing Made of GCr15
NSK brand, cylindrical roller bearing
Gear Made of 20CrMnTi
Bevel structure for more smoothly running
Oil seal Made of fluoro rubber
bears high temperature and has a longer life.

Working Principle

Roots blower is a cubage blower, and it discharges a fixed amount of air in proportion to its rotation speed. Every rotation, there is two lobes to finish three times absorbing and dischargeing air. Compared with two lobes blower, it is of less air pulses, smaller load change, higher strength, lower noise and vibration.

Two paraller shafts have three lobes each, all the lobes keep small clearance with each other and housing inside. Every lobes rotatiomn, a certain air will be absorbed at inlet and transfeered form the housing inside surface to blower's diacharge port.

Two shafts will be turned by the timing gears, no any touching between lobes, so it can be turned at high speed without any lubrication inside. It has the following chaaracteristics: simply configuration; running smoothly;good performance stabilization. It has been widely applied in various industries.

Contact Details
B-Tohin Machine (Jiangsu) Co., Ltd.

Contact Person: Iris Xu

Tel: +8615301523076

Send your inquiry directly to us
B-Tohin Machine (Jiangsu) Co., Ltd.
No.69 Xijiu Road, Industrial Park for Environmental SCI & TECH, Yixing, Jiangsu,China
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