AAA Drafting Blog

A SolidWorks designer talks about stuff related to CAD and mechanical design

Friday, December 09, 2005

Purchasing a used dust collector

If you are a fabrication shop owner, or painting shop manager, you might be considering purchasing a used dust collector to aid in the control of dust in your plant. Used dust collectors are often solld at machinery auctions and I have even seen them on ebay from time to time.

However, if you are going to purchase used you should be aware that all dust collectors are specifically sized to a customers application. The dust collector is sized based on the number of dust pick up points in the plant. Each pick up point will differ in the volume of dust that is expected to be collected. A balanced ducting system has to be created to make sure that all collection points will operate simulteaneously. The design of the ducting system leads to the ultimate inlet duct size and cfm rating for the dust collector.

Therefore if you purchase a used machine you would have to have an identical plant layout with identical dust pick up points to the plant from which your used collector came. In order to use your dust collector, you would have to have a ducting system created that provided a balanced system for all the dust collection requirements in your plant. The ultimate inlet size and cfm requirements would most likely end up being quite different from the specifications of your purchased collector.

It is possible to retrofit a used dust collector to work with your plants ducting system, but it would likely mean that you would have to have purchased a collector with at least a cfm rating close to what you need. Even then you still might have to change the fan and have new inlet diamters sized to make the system function.

Be extremely careful if you are considering purchasing a used dust collector. It could be in perfect working order but become non-functional in your particular application.


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