Blast gates vs. air gates

Blast gates are used to focus a dust collection system’s vacuum pressure for maximum material extraction at the desired location. Blast gates are positioned near individual pieces of machinery and are closed by default — blocking air flow. When one blast gate is opened, all available suction is focused at that location, maximizing the amount of material collected.

Blast gates  control the air flow from one machine to another and to maximize system efficiency; specific lines in the system may be shut off to allow more air flow to another machine.

Air gates are used just like blast gates, but there is a difference. An air gate is activated when the machine it is connected to is turned on.

Air gates work well with small machines like chop saws; they have the ability to open and close every time the chop saw is turned on. This makes operation a lot less tedious; the operator doesn’t have to open and close them between uses.

Air gates also work with larger machines and can be used in a variety of  ways. Controlling your system’s airflow is a must, but many people use undersized dust collectors in their systems, which can create massive problems. Installing air gates on branch lines or on small machines that are not always in use can maximize the efficiency of your dust collection system.

Contact Spiral Manufacturing at 763-755-7677 today (toll-free at 1-800-426-3643) if you have questions on how to best utilize blast or air gates in your dust collection system.