VAC-U-MAX Vacuum Conveying Systems for Bulk Dry Powders

VAC-U-MAX Vacuum Conveying System with Check Sieve

Pneumatic Conveying Sieve System

The VAC-U-MAX In-Line Air-Swept Check Sieving System. 

The in-line air-swept check sieve can be incorporated in an existing or a new vacuum conveying system.



  • Check sieving becomes a part of the completely enclosed material transfer operation, rather then a separately performed function. 
  • Vacuum conveying system draws material into the chamber above the vibrating screen, through the screen and out to the next element in the conveying system. 
  • Action on the screen can be viewed through the transparent cover. 
  • Foreign objects remain on the screen and can be removed by unclamping the cover or inserting a vacuum probe into an access port above the screen. 
  • All Material contacts parts are 304 or 316L stainless steel and are easily disassembled for cleaning by releasing quick-acting clamps. 
  • Other process operations, such as milling, can be performed in the same clean, efficient conveying cycle. 
  • Gyratory action easliy adjustable for different materials and meshes.

The rate at which material can be conveyed through a vacuum conveying system using an sieve will vary depending upon the characteristics of the material. Many systems are operating at rates up to 4 tons per hour and higher rates are being achieved in some instances. Samples of your material can be run in teh VAC-U-MAX Test Lab to determine practical throughput rates. 


  • Decks: Single with quick release clamps for easy cleaning
  • Suspension: Rubber, Long Life anti-vibration mounts
  • Vibrators: Independent, with massive longlife bearings and high centrifugal force twin weights that are adjustable for amplitude
  • Drive: Selective speed-Indirect through toothed belt abd pulleys giving vibrator frequncy of 880/2800 VPM
  • Motor: 2HP, TEFC, 230/460, 3 phase, 60 HZ, 1750 RPM.