Using Metal Duct For Dust Collection

For maximum safety and to avoid a dangerous buildup of static electricity you must use the grounding kit sold separately.

Using metal duct for dust collection. In the simplest terms a dust collection system is comprised of a ducting system to transport the dust from the source table saw planer etc and a collection device such as a bag and filter system or a cyclone which pulls the dust through the ducting and collects it. I have read several articles on the pros and cons of using metal instead of pvc piping for dust collection systems. Engineered for performance and durability using heavy gauge steel our round sheet metal ducting is built to withstand the high air pressures and constant abrasion created in dust collection and other material handling applications. There are a lot of posts on dust collection and piping but i am still wallowing on a decision.

Engineered for performance and durability using heavy gauge steel our round sheet metal ducting is built to withstand the high air pressures and constant abrasion created in dust collection and other material handling applications. Dust collection ductwork falls into two major categories flexible hose duct and hard fixed duct. Instead look at the intake port sizes for the collectors you re considering. Designing a dust collection system.

System my dc is a 10 year old 3hp craftex twin 1 micron felt bags 12 impeller 6 main with a 3 x 4 adapter. Go with metal ductwork. First draw the locations of your woodworking machines doors windows cabinets and other fixtures that. Up to now i leave one 4 port open one closed and the 3rd has a 4 vinyl flex pipe to a veritas.

Planning your dust collection system planning your duct layout on paper is the first step. Do use the largest ductwork that fits your collector. Hose clamps are available. Just because a tool comes with a 4 dust port doesn t mean you should use 4 main ducts or drops.

The spec is 2200cfm however i measure 800 1000 at the 6 main with a cheap meter. With metal ducting there are additional sizes available and you can make more gradual steps down to potentially squeeze a bit more performance out of your system but if you have appropriately sized your dust collector you will be able to derive adequate air flow using 6 and 4 pipes. Most cyclones have intake ports of 6 to 8 and some two bag collectors have 5 or 6 diameter intakes so consider at least a 5 main duct. Metal ductwork is robust and rigid it will withstand any level of stress and high vacuum.

There are also articles stating that grounding and bonding pvc does little good in the effort to prevent static discharge. Use these components sold separately to put together a duct system to collect sawdust chips shavings and granular material from woodworking operations.