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Types of rotary lobe blowers

The robust construction and high manufacturing quality of rotary lobe blowers from Busch ensure outstanding reliability and durability.

Due to their dry operating principle, there is no need for oil or other lubricants.

Product family
Nominal pumping speed
TYR
850-4700 min-1
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Powerful and quiet. The modern vacuum and overpressure generator.

Applications

Rotary lobe compressors are used in various industries. They are suitable for applications ranging from aeration of liquids to pneumatic conveying of plastic granulates.

Each industry and application has different needs. To find out which vacuum solution fits your needs best, get in touch with our Busch experts.

Find out more about how rotary lobe technology is used in different applications.

Your application is not mentioned? Check out our product finder!

Our customer success stories

  • Busch Vacuum Solutions Presents the Intelligent TYR PLUS Rotary Lobe Blower

    Busch Vacuum Solutions Presents the Intelligent TYR PLUS Rotary Lobe Blower

    Busch Vacuum Solutions – a member of the global Busch Group – presents the new TYR PLUS, an intelligent addition to the latest generation of the TYR family of rotary lobe blowers. An integrated variable speed drive allows reduced energy consumption and lower operating costs for wastewater treatment, pneumatic conveying systems, and other industrial applications.

    Learn more
  • Blowers for One of the Largest Fish Farms in the World

    Blowers for One of the Largest Fish Farms in the World

    Busch China supplies blowers to one of the world's largest fish farms. In the first phase of the project, 104 blowers have been installed.

    Learn more
  • Vacuum Pumps for Pneumatic Suction Conveying

    Vacuum Pumps for Pneumatic Suction Conveying

    Economical conveying of bulk goods

    Learn more
  • Energy-Saving Oxygenation of Aeration Tanks

    Energy-Saving Oxygenation of Aeration Tanks

    Biological wastewater treatment

    Learn more
  • Perfect Water Treatment Thanks to Adjustable Rotary Lobe Blowers

    Perfect Water Treatment Thanks to Adjustable Rotary Lobe Blowers

    Learn more
  • Reliable oxygen supply for fish farm biofilters

    Reliable oxygen supply for fish farm biofilters

    Osland Havbruk AS

    Learn more
  • Reliable oxygen supply for fish farm biofilters

    Reliable oxygen supply for fish farm biofilters

    Osland Havbruk AS

    Learn more
  • Manufacturing Salmon Products Using State-Of-The-Art Vacuum Technology

    Manufacturing Salmon Products Using State-Of-The-Art Vacuum Technology

    Nordlaks Produkter AS

    Learn more

FAQ

What happened to the TORRI?

The global Busch Group now offers a unified portfolio of multi-stage Roots vacuum pumps under its brand Pfeiffer Vacuum+Fab Solutions. To streamline our product offering within the Group, Pfeiffer has taken over the complete portfolio of dry vacuum pumps for the semiconductor market, which includes the TORRI.

We now unify our offer and communication by promoting only one joint, large portfolio of multi-stage Roots vacuum pumps to our customers.

Pfeiffer multi-stage roots pumps portfolio

What is a rotary lobe blower?

Rotary lobe blowers generate vacuum or overpressure. They operate according to the proven Roots principle: Two rotary lobes are mounted in parallel within the housing. These three-bladed lobes operate in opposite directions. The rotation of the lobes traps the pumped medium and transports it to the outlet. There, it is discharged through an outlet silencer.

Applications of rotary lobe blowers include wastewater treatment, pneumatic conveying, fish farming, and many more industries where constant differential pressure is required.

How does a rotary lobe blower work?

A rotary lobe blower operates according to the proven Roots principle, which relies on the concept of positive displacement. Its working principle can be explained in three steps:

  • Inlet
    • The pumped medium enters through the inlet and is trapped between the lobes and the housing.
    • Two rotary lobes are mounted in parallel within the housing and rotate in opposite directions.
  • Compression
    • The rotation of the rotary lobes compresses the pumped medium and transports it towards the outlet.
  • Outlet
    • The compressed pumped medium is then discharged through an outlet silencer, which reduces noise levels.

What are the advantages and disadvantages of rotary lobe vacuum pumps and blowers?

Rotary lobe vacuum pumps and blowers from Busch are robust, reliable, and cost-efficient. They have several benefits:

  • Low noise and vibration levels
  • Energy-efficient
  • Robust construction
  • Flow-optimized blower stages
  • Dry operating principle

Vacuum pumps and blowers with this technology are not suitable for chemical and pharmaceutical industries as they cannot handle chemicals or toxic gases.

How do I select the appropriate rotary lobe blower?

Several factors have to be considered when selecting the right solution. These factors vary depending on the application and the specific needs of your process.

Use our product finder to find your ideal vacuum pump. Or contact us to find out which vacuum solution fits your needs best. Our Busch experts are happy to help!

What makes Busch one of the leading manufacturers of rotary lobe vacuum pumps and blowers?

Rotary lobe vacuum pumps and blowers from Busch have a large number of accessories and design options that enable individual configurations to match any requirement. For example, the innovative acoustic insulation with integrated inlet and outlet silencers reduces noise levels by up to an additional 20 dB(A). Moreover, our rotary lobe vacuum pumps are characterized by low ultimate pressure and best-in-class chamber pump-down time for load lock chambers.