How to reduce the noise of shot blasting machine?

One of the chief sources of noise at the blast machine is the opening where abrasive is fed to the blast wheel. The SoundAbator totally enclosed abrasive control valve, which can be installed on most Indabrator machine machines,is specifically designed to combat noise from this source by sealing the opening to the wheel. It can reduce thenoise level of a typical blast wheel, measured three inches from the abrasive feed inlet, by 25 decibels (A scale).
The SoundAbator also serves another important function by modulating the volume of abrasive flowing to the blast wheel.

Equipment Shortcut