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

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HC-301S Rotary Air Blower 0.75KW air fan small civil sewage aerator

HC-301S Rotary Air Blower 0.75KW air fan small civil sewage aerator

  • HC-301S Rotary Air Blower 0.75KW air fan small civil sewage aerator
HC-301S Rotary Air Blower 0.75KW air fan small civil sewage aerator
Product Details:
Place of Origin: China
Brand Name: TOHIN
Certification: ISO9001/ISO14001/CE
Model Number: HC-301S
Payment & Shipping Terms:
Minimum Order Quantity: 1 set
Price: Negotiation
Packaging Details: Export standard wooden case
Delivery Time: 5-20 working days, depends on order amount and specification
Payment Terms: L/C, T/T
Supply Ability: 1000 SETS per month
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Detailed Product Description
Air Capacity: 0.42-0.38m3/min Discharge Differential Pressure: 0.1kgf/cm2-0.5kgf/cm2
Motor Power: 0.75KW Discharge Bore: DN25(1”)
Main Materials: HT200 Cast Iron Key Technology: Design From Tohin Shoji Co., Ltd.
Noise: 61dB(A)
High Light:

rotary positive displacement blower


industrial air blower


HC-301S Rotary Air Blower,  0.75KW  air fan, small civil sewage aerator



About HC

HC blower is a special type blower. It is composed of motor, air filter, blower main body, air chamber, base and oil tank and Japan-made oil dripping nozzle.


The oil dripping nozzle drops lubrication oil into air cylinder by differential pressure generated in blower running, which is the key technology and unique design of Japan Tohin Shoji Co.,





Air capacity






Discharge differential pressure


20 KPA


40 KPA


Rotary speed


Motor type


380/400/415/440V, 3PHASES, 50/60HZ

Motor brand

Standard: Siemens Beide or Wannan motor

Siemens and ABB motor for your option

N.W. of blower package


Packing size Approx.

0.91*0.51*0.88m (length*width*height)




  • Wastewater aeration
  • Mixing and aerating of hospital and laboratory waste products
  • Conveying papers in offset printing operations
  • Agitation and aeration for plating tanks and waste water
  • Air supplier for plastic welding and blowing
  • For mist spray of burner and in glass industry and others
  • new rural construction sewage treatment station



  • Compact, low noise and economical energy consumption. (It adopts the principle of air compressed by revolving movement. Therefore, although compact, the rotary  blowers display their powerful discharged capacity, low noise, litter energy consumption)


  • Stable operation, simple installation. (In the case of small types, the blower can be conveniently installed and mere vibration occurred if placed correctly, not requiring any other vibration-proof device.)


  • Resisting load changes, securing fixed air flow rate (For instance, if a rotary blower is used for sanitary treatment in the aeration tank, almost no air flow rate is decreased even if load becomes large due to the change in the pressure inside tank.)


  • Air chamber equipped for dispersing air smoothly. (All models are provided with an air chamber, resulting in being free from air pulsation and air dispersed smoothly.)


  • Qualified material, special structure designed in Japan, remarkable


  • performance (All parts of the blowers are made of qualified material and are fine designed and manufactured. It is durable in use and free of trouble and deterioration of performance after a long time use.)


  • Simple maintenance, rare malfunctions, long using life (The low speed of blower ensures small abrasion and long life.)


Working Principle


The blower is so designed and constructed that air is sucked, compressed and discharged  repeatedly while vanes protruding from the grooves of rotor are coming in and out by revolution of a rotor (rotating body)   set eccentrically inside the cylinder diameter. A minimum required quantity of oil is dropped to an oil dropping nozzle (imported from Japan), then dropped into the cylinder always while operating in order to make lubrication for the purpose of preventing heat and noise from generating. In the same time, it is free of circum-fluence of air in cylinder.



Standard supply of scope


HC Rotary blower's structure is exquisite. It mainly consists of air chamber, electric motor, air filter, blower main body, base (and oil tank), oil dropping nozzle, pulley and other connection parts.


HC-301S Rotary Air Blower 0.75KW air fan small civil sewage aerator 0

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

Contact Person: Iris Xu

Tel: +8615301523076

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