What is a Pneumatic Conveyor?

31 Jul.,2025

 

A pneumatic conveyor is a highly efficient system used to transport bulk materials such as powders, granules, pellets, and grains through pipelines using air pressure or vacuum. Widely adopted in industries such as wastewater treatment, agriculture, and pneumatic bulk material handling, this type of conveying system offers a clean, enclosed, and automated solution for material transport.

What is a Pneumatic Conveyor?

How Does a Pneumatic Conveyor Work?

A pneumatic conveying system uses a stream of pressurized air or vacuum to move materials through a pipeline. The system typically includes:

  • Air source (such as a Roots blower or Turbo air blower)

  • Feeding device

  • Conveying pipeline

  • Material receiver or separator

Depending on the application and material type, pneumatic conveyors operate in either positive pressure (blowing) or negative pressure (vacuum) mode.

Types of Pneumatic Conveying Systems

There are two main conveying methods:

  • Dilute Phase Conveying
    Materials are suspended in high-velocity air and transported in a continuous flow. Ideal for lightweight and non-abrasive materials.

  • Dense Phase Conveying
    Materials move in a slug or plug form at a lower velocity, which reduces product degradation and pipe wear. Suitable for heavier and fragile materials.

Advantages of Pneumatic Conveyors

  • Dust-free, enclosed transport system

  • Flexible layout for complex plant designs

  • Reduced maintenance and lower downtime

  • Ideal for long-distance and vertical conveying

  • Easy integration with automated systems

These benefits make pneumatic conveyors an excellent choice for modern industries requiring safe and efficient bulk handling.

Common Applications

Pneumatic conveying systems are used in:

  • Wastewater treatment plants for conveying powdered chemicals like lime or activated carbon.

  • Aquaculture and farming to transport feed or grains.

  • Food, pharmaceutical, and chemical industries where hygiene and cleanliness are critical.

  • Cement and plastic industries for conveying powder, resin, or pellets.

Why Use Roots Blowers and Turbo Blowers for Pneumatic Conveying?

At Oasis Blower, we provide high-performance Roots blowers and Turbo blowers specifically designed for pneumatic conveying systems.

  • Roots Blowers: Provide consistent airflow and are highly durable, ideal for low-to-medium pressure applications.

  • Turbo Air Blowers: Offer higher energy efficiency and are perfect for large-scale or high-pressure systems.

Our blowers are engineered to meet the demands of continuous operation in industrial environments, ensuring reliable and cost-effective conveying.