Are We Moving Into A New Format Peening & Blasting Machine?

Author:  Ronald John, Tealgate Ltd., England
Source:  The Shot Peener magazine, Vol 05/Issue 1, Spring 1991
Doc ID:  1991109
Year of Publication:  1991
Abstract:  
Traditionally, blast machines have consisted of a pressure pot with some form of restricted opening through which the shot or grit passes into the blast hose. The opening had to be relatively small so that 'some-where' near the correct amount of material passed into the system. Also a pressure differential had to be created between the pot and mixer to compensate for the uncertainty of transfer by gravity. The pressure differential forced material through the restricted opening; unfortunately, this had certain draw-backs.