The Razaire 530 is the smallest, quietest, most powerful and versatile portable dust collector in the world. Because it is a modular system, it can handle the dust control needs of any small home workshop - from collecting dust at the source (rotary carving tools, belt sanders, etc.) to overall shop air filtration.
How does it work? Dusty air enters the front of the unit, drawn in by a powerful impeller fan. A filter traps the dust that removes more than 90% of a 3-4 micron sized particles (about the size of baby powder). The clean air is then exhausted out the side. For most carving applications, carving inside the acrylic hood is not necessary - working 6" in front of it usually provides satisfactory results. With enough suction to pick up shavings from a planer (with a 4" hose attached), the Razaire 530 can handle it all.
Filters are easily removed for cleaning (filter is cleaned by tapping it into a plastic bag or a garbage can). It can be cleaned many times before replacement is necessary. The flameproof ABS cabinet has a built-in lamp holder that accepts a standard swing-arm lamp (not included), giving you excellent light where you need it most - right at the intake. The Razaire 530 is also supplied with an 8 inch acrylic hood that breaks down into 3 flat panels for portability.
Several accessories can be added to increase the versatility of this system. Everything from adding higher efficiency filters or extra filter stages (for increased efficiency) to a 4" hose adapter, a lap-top tray, a motor tool hanger, and a deflector to direct the air towards the back.
One of the first questions we get asked about the Razaire 530 is how many CFM's? While it may seem like a simple question, the answer gets a bit complicated. We will try to explain. A CFM stands for "cubic feet per minute", and indicates how many cubic feet of air that can be moved through the fan in one minute. The theory is, the more CFM the better, but this is not necessarily so.Static Pressure
Another factor governing fan performance is something called static pressure. They measure it in inches of water gauge. Static pressure is basically anything that restricts the air coming into the fan, for example, a filter. Obviously a clogged filter would provide more static pressure than a clean filter. This is why our choice of a fan was so critical to the performance of the Razaire 530. The fan we chose for the 530 is actually a high-tech version of a fan called an impeller, and it is rated at 530 CFM! Impellers are much more efficient than other types of fans (unfortunately, they are also more expensive).Axial Fan
The regular type of fan that most people are familiar with is called an axial fan rated at 550 CFM may sound more powerful, but it isn't. Putting a new filter in front of it introduces approx. 0.15" static pressure, dropping the CFM rating to only 200 CFM. Getting a load of sawdust in the filter increases the static pressure to over 0.2", reducing airflow to below 175 CFM. By the time static pressure gets up to 0.4", airflow has dropped below 20 CFM or about half that of a bathroom fan.Razaire 530 Impeller
Now let's look at our impeller. At 0.15" static pressure it still moves over 500CFM. At 0.2", airflow is still above 485 CFM. At 0.4", airflow is over 400 CFM. The impeller will move air all the way up to 1.5" static pressure. Other advantages of the impeller are several. Because of the blade design, the blades will not load up, so they should never need to be cleaned. Also, as static pressure increases, the impeller actually uses less electricity, so it won't burn out from too much pressure. Our impeller is built to last and last.