Pneumatic conveying

Learn more about the application of vacuum and positive pressure technology in pneumatic conveying processes, such as pneumatic conveying of particles or powdered bulk articles, etc.

What are the applications of vacuum or positive pressure pneumatic conveying systems?
Practice has proved that pneumatic transportation of bulk goods is an efficient method for fast and reliable transportation of powder, particles and other fluidified substances at the production site. The difference between negative pressure pneumatic conveying and positive pressure pneumatic conveying lies in whether vacuum or positive pressure is used for conveying.

Negative pressure pneumatic conveying is often used to convey some sensitive materials that cannot contact ambient air. Negative pressure pneumatic conveying system is mainly used in food, plastic processing (conveying plastic particles), pharmaceutical and chemical fields.

Positive pressure pneumatic conveying is used to transport relatively heavy materials, such as gravel and cement.


In addition, the vacuum conveyor can also transport large volumes of wet materials, such as handling wet garbage or transporting bark debris.

Which product series of Busch are especially suitable for pneumatic conveying applications?

The Mink vacuum pump uses the principle of claw technology and is the most economical, reliable and cleanest solution for negative pressure pneumatic delivery of sensitive substances. When compressing the pumped air, no industrial liquid is needed, so the operation basically requires no maintenance.

The pumping rate and vacuum degree of the negative pressure conveying system depend on a variety of factors, including conveying speed, material characteristics, conveyor belt length and pipe diameter.


In addition to the Mink claw vacuum pump, if the process requires higher vacuum, the proven R 5 rotary vane vacuum pump can also be used. If a large amount of materials needs to be transported, Samos side flow fan or Tyr roots fan is the first choice. Busch vacuum system is specially designed for large or complex conveyor systems, and is fully debugged at the installation site. If necessary, separation devices and control systems can be added.

Examples of practical applications of Busch vacuum and positive pressure acquisition equipment in pneumatic conveying systems:

  • negative pressure pneumatic conveying of food
  • positive pressure pneumatic conveying of bulk products
  • negative pressure pneumatic conveying of plastic particles
  • wet garbage transportation