Low Noise Rotary Blower
The low noise rotary blower is made with the advanced technology from the biggest rotary blower producer-Japan TOHIN Industry Company. B-TOHIN is a joint venture of TOHIN. With the dual support of Japanese technology and Chinese labor resources, we are able to provide you with the most cost-effective low noise rotary blower.
Since it came out in 1950, the rotary blower has been widely acclaimed by customers for its feature of low-noise. In Japan, the sales has reached 300 million sets, and in China, it has been widely used by thousands of green companies. This industrial blower has also tapped into markets in South America, Southeast Asia, etc.
Working Principle
The rotary blower is so designed and constructed that air is sucked, compressed and discharged repeatedly as vanes protruding from the grooves of rotor are coming in and out by revolution of a rotor set eccentrically inside the cylinder. Due to the existence of pressure difference, the lubricating oil will be sent to the oil dropping nozzle automatically, and then dropped into the cylinder to reduce friction and noise. At the same time, circumfluence of air in cylinder is avoided.
Components
The rotary blower mainly consists of motor, air filter, blower body, air chamber, base (and oil tank) and oil dropping nozzle. The structure is quite exquisite.
Features
1. Compact structure, large air flow rate, low noise, low energy consumption.
The low noise rotary blower works by the principle of air compressed by revolving movement. Therefore, small as it is, the blower is unparalleled in respect to discharge capacity, quietness, and energy consumption.
2. Stable operation, simple installation.
In the case of small types, the rotary blower can be conveniently installed and mere vibration is produced if placed correctly, not requiring any other anti-vibration device.
3. Resistant to load changes, consistent air flow rate.
For example, if a rotary blower is used as an aeration blower for wastewater treatment in the aeration tank, the air flow rate almost stays the same even if load changes due to the change of pressure inside tank.
4. Air chamber equipped for dispersing air smoothly.
All models are provided with an air chamber, which can prevent air pulsation and ensure that the air is dispersed smoothly.
5. Superior material, ingenious structure, remarkable performance.
All parts of the rotary blower are made of superior material and are well designed and manufactured. It is durable in use and after a long time, it is still free of trouble and deterioration of performance.
6. Simple maintenance, rare malfunctions, long life.
The low speed of blower ensures small abrasion and long life.
Specifications
1. Air capacity: 0.225-5.41m3/min
2. Discharge pressure: 10kPa-50kPa
3. Motor power: 0.37kW-7.5kW
4. Driving type: belt and pulley
5. Cooling type: air
6. Discharge port diameter: DN20-DN80
Main Applications
1. Waste water aeration
2. Mixing and aerating of hospital and laboratory waste water
3. Conveying papers in offset printing operations
4. Agitation and aeration for plating tanks and waste water
5. Air supplier for plastic welding and blowing
6. For mist spray of burner and in glass industry and others
| Model | Discharge Dia. (mm) | Motor Power (kw) | Frequency (Hz) | Rotary Speed (rpm) | Air Capacity (m3/min) | ||||
| 0.1kgf/ cm2 | 0.2kgf/ cm2 | 0.3kgf/ cm2 | 0.4kgf/ cm2 | 0.5kgf/ cm2 | |||||
| | 3/4" (20) | 0.37 | 50 | 430 | 0.278 | 0.265 | 0.250 | 0.237 | 0.225 |
| | 3/4" (20) | 0.55 | 50 | 450 | 0.31 | 0.3 | 0.29 | 0.28 | 0.28 |
| | 1" (25) | 0.55 | 50 | 430 | 0.35 | 0.34 | 0.33 | 0.32 | 0.31 |
| | 1" (25) | 0.75 | 50 | 520 | 0.42 | 0.41 | 0.4 | 0.39 | 0.38 |
| | 11/4" (32) | 0.75 | 50 | 500 | 0.66 | 0.65 | 0.63 | 0.61 | 0.59 |
| | 11/4" (32) | 1.5 | 50 | 580 | 0.8 | 0.77 | 0.74 | 0.71 | 0.67 |
| | 11/2" (40) | 1.5 | 50 | 430 | 1.14 | 1.12 | 1.09 | 1.06 | 1.02 |
| | 11/2" (40) | 2.2 | 50 | 500 | 1.44 | 1.42 | 1.39 | 1.36 | 1.32 |
| | 2" (50) | 2.2 | 50 | 450 | 1.9 | 1.87 | 1.82 | 1.77 | 1.71 |
| | 2" (50) | 4 | 50 | 540 | 2.41 | 2.34 | 2.29 | 2.24 | 2.18 |
| | 21/2" (65) | 4 | 50 | 430 | 2.82 | 2.74 | 2.66 | 2.59 | 2.5 |
| | 21/2" (65) | 5.5 | 50 | 500 | 3.53 | 3.45 | 3.38 | 3.33 | 3.25 |
| | 3" (80) | 5.5 | 50 | 390 | 4.32 | 4.28 | 4.25 | 4.18 | 4.11 |
| | 3" (80) | 7.5 | 50 | 420 | 5.41 | 5.32 | 5.25 | 5.18 | 5.11 |
