Sizing Tool

Renowned by experts in the industry as the most useful tool available to the general public for sizing and selection. Tuthill Vacuum & Blower Systems offers this free tool for download here for Windows OS and MACs with Windows emulator.


VBXpert is used by the Kansas State Bulk Solids Innovation Center.  Students use the software for blower sizing when designing pneumatic conveying systems.

System Requirements:

  • Operating System - Windows® XP (with ASP.NET 4 installed) or later
  • 4MB of RAM
  • 20 MB of Storage
  • Video - 1024/768 - 16 bit or better color recommended
  • User must have administrator privileges
  • Initial data download requires internet access
  • After installation, VBXpert must be able to connect to the internet to register, and receive information
  • VBXpert must be on the list of allowed programs in your firewall in order to function

Microsoft .NET Framework Requirement

Our sizing tool takes advantage of features that are in the current Microsoft .NET Framework. You can check to see if your installation of the Microsoft .NET Framework is current with Windows Update. Click here to download Microsoft .NET Framework.