Roots® Rotary Blowers

Supporting industrial processes with reliable, efficient air and gas blowers

PD Blowers

Rotary blowers featuring a compact and sturdy design, engineered for continuous use with exceptional reliability, making them ideal for demanding industrial applications. Their robust construction ensures long-lasting performance, while their efficient operation minimizes maintenance needs and downtime.

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Centrifugal Compressors

Heavy-duty centrifugal compressors in a compact, robust design engineered for continuous operation and maximum reliability. These compressors feature advanced air and gas handling capabilities, backed by a legacy of technical innovation and unwavering performance.

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Truck Blowers

Roots® compact and lightweight mobile vacuum blowers provide more CFM per pound of blower. Widest and most complete range of blowers for the toughest challenges.

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Supporting industrial processes with reliable, efficient air and gas blowers

Roots® blowers are found wherever there is a need to move air and gas. That means throughout a vast number of applications within industries such as food & beverage, chemicals, water, pulp & paper, mining, cement, power, metals and oil & gas. 

Many industrial processes rely on air such as combustion, vacuum, air separation, water aeration, pneumatic conveying, membrane cleaning or regeneration and many more.

In gas applications, Roots blowers are used to process a variety of gases, ranging from steam to nitrogen, hydrogen, and other hydrocarbons. They are also specialized in steel degassing with high vacuum boosters.

For vacuum truck OEMs our truck mounted Roots blowers are the ideal solution as they are both quiet and powerful.

Why industry chooses Roots® Blowers

• Range: nine models offer a large performance envelope with small rotary blowers up to 10,000 m3/h available as a bareshaft blower or within a standard package. Larger blowers up to 70,000 m3//h can be packaged as required per customer requirement or supplied as a bareshaft for packaging by others.
• Reliability: our blowers are trusted to perform in areas of continuous use. Optional features such as Dual splash lubrication can increase oil capacity and add to blower reliability.
• Efficiency: all power consuming equipment can contribute to significant annual and lifetime operating costs. Roots experts will specify the right blowers for each site and duty to maximise the output with the minimal level of power consumption.
• Noise: keeping operations under the permitted noise level is a critical factor for the health of personnel on site and the neighbouring community. It's an area in which Roots excel with a range that offers WHISPAIR' technology which reduces pulsation and noise by 3-5 dBA. Acoustic enclosures can also be supplied with up to 22 dBA free field attenuation.

Key Features

• Easy to install, with small footprint.
• Acoustic enclosure is designed to provide up to 22 dBA free field attenuation.
• Broad operating performance range provides a multitude of efficient and compact solutions.
• Air flow from front to rear is designed for personnel safety and equipment reliability.
• Access to air filter is convenient and designed to reduce pressure losses, improving reliability and blower efficiency and protecting your investment.

Benefits

• Small rotary performance
• Flow rate: Up to 10,710 m3/hr (6,300 cfm)
• Pressure: Up to 15 psig
• Vacuum: Up to 28' Hg

• Large rotary performance
• Flow rate: Up to 120,000 m3/hr (70,000 cfm)
• Pressure: Up to 35 psig
• Vacuum: Up to 28' Hg and high vacuum
• Custom design available for high static pressures

Applications

Huge range of applications as the small lobe blowers are designed to work on trucks, while the bigger blowers operate in applications such as vacuum filtration and drying and materials handling.

Several Factors to Consider When Choosing a Roots Blower

The selection of Roots blower is the same as that of other fans. It is necessary to know certain parameters to determine the blower type. As a pneumatic conveying device, it is widely used in the chemical industry, metallurgical industry, and environmental protection industry. When choosing a roots blower,we must calculate the technical parameters precisely.If the model is too big,it will waste power and capital;too small can not meet the requirements of working conditions.Let's discuss with you the following parameters, which will influence the selection of roots blowers.

For more information, please visit Roots Blower Manufacturer.

1. Air Volume 

The air flow parameter of the roots blower refers to the volume of gas delivered by the roots blower per unit time. The general unit of measurement is: m³/min or m³/h. In some industries, the roots blowers are only auxiliary equipment, and it is impossible to estimate the required air volume parameters, such as cement transportation and boiler return. Under these conditions, it is only possible to provide the delivery volume per unit time, such as: conveying 15 tons of cement per hour; the material throughput data can also help us estimate the air volume. The air volume parameter is one of the parameters that must be mastered when the Roots blower is selected.

2. Pressure

The pressure parameter refers to the outlet pressure of the Roots blower and also refers to the pressure that the Roots blower needs to overcome. The Roots blower itself does not generate pressure.Its ability to overcome the pressure of the front pipeline, we call it "Roots Blower pressure." Because the Roots blower is a positive displacement blower, the pressure depends on the front pipe and atmospheric pressure, which is what we often call 'back pressure'. The pressure gauge will show the exact pressure. If the pressure exceeds the rated pressure, the Roots blower will be in an overpressure condition and the motor will burn down easily.

The above two parameters are the necessary parameters for the selection of Roots blower. To accurately select the Roots blower, these two parameters must be known. The following parameters are also very important. What are the parameters?

3. Rotate Speed

There are two main transmission modes for Roots blowers. One is belt drive and the other is direct drive. In some industries, there are strict requirements for the speed of the Roots blower. So, what effect does the fan speed have on the fan?

The fan speed affects two aspects, one is the air volume , and the other is the service life of the blower. When all the parameters are same except the rotate speed, the higher the speed, the larger the blower volume. However,the abrasion of the blower will be more seriously.We can say that the blower with high speed will be shorter in service life.From this point we can know the importance of the speed parameter.

4. Transport Medium

The roots blowers can not transport all kinds of gas,such as gas with High acidity and alkalinity and flammable and explosive gases. For example: strong corrosive gas.We can manufacture the roots blowers with special material,but the strong corrosive gas can damage the roots blower easily.In this case,the blower is not suitable for this working conditions. Most of the roots blowers in the market are made from cast irons and stainless steel with their own application standard. Therefore, when selecting according to the air volume and pressure, there are certain requirements for the transport medium.

5. Sealing Method

When selecting a roots blower, we also need to consider one parameter: the sealing method. Generally, the sealing method of Roots blowers are labyrinths. However, when special gases are transported, special sealing methods such as piston ring seals and mechanical seals may be required. The difference in sealing method will cause the price of the fan model to fluctuate, which is also one of the necessary parameters for selection.

Above are the parameters that must be considered when the Roots blower is selected. Only selected according to the parameters can the Roots Blowers meet our requirements.

If you are looking for more details, kindly visit Roots Blower Supplier.