Table of Contents
Dust collector systems work in general by drawing dust and particulates from the air through a filter that first captures and separates the matter, and then discharges purified air back into the workplace or environment.
Why do dust collectors have two bags?
When the lower bags in a two- or four-bag chip collector fill up, the unit’s filter area is effectively cut in half. This not only reduces suction significantly, but the higher air pressure inside the bag also forces fine dust particles through the fabric and into the shop air.
How do wood dust collection systems work?
Dust is drawn first into the cyclone itself. Two-stage collectors draw air first into a separator, where the chips and larger dust particles settle into a bag or drum before they reach stage two, the filter. That keeps the filter much cleaner and free flowing, improving suction.
Does a dust collector clean the air?
Dust collectors are devices that filter dust from polluted air generated by industrial processes and discharge clean air into the environment. Efficient dust collectors protect employees from dry particulates and pollution in the air.
Can PVC pipe be used for dust collection?
PVC is commonly used in dust collection systems. Typically for longer runs you should use 6″ or larger pipe, regardless of the material. If you’re using PVC, the larger, less expensive pipe is commonly available as sewer drain pipe.
Does a shop vac work for dust collection?
Nor do you have to shell out the big bucks for a central dust collection system. You can capture most nuisance dust with a standard shop vacuum and a few accessories. We’ll show you how to assemble simple, inexpensive dust collectors that’ll suck up most of that sawdust before it gets all over everything.
Is 650 CFM dust collector enough?
A 3/4 -hp, 650 CFM collector, like the wall-mounted unit shown below might be the perfect solution for a small shop. It’s small enough to move around the shop as needed and conveniently hangs on the wall, out of the way of your tools.
Do I need a 2 stage dust collector?
Since most woodworking dust contains coarse and fine sized particles, a two-stage dust collection system is generally recommended. It is important to know that the longer the cyclone body and cone, the better the dust separation. One major reason for using a separator is so the blower unit will only convey fine dust.
How many CFM does a dust collector need?
They found most small shop stationary tools need about 1000 cubic feet per minute (CFM) of airflow to have good fine dust collection and only need about 350 CFM for good “chip collection”.
How do you make a dust extraction system?
Step One: Layout the Machinery Of Your Shop. Step Two: Draw a Top-Down View Sketch (to Scale) Of Your Machines and Dust Collector. Step Three: Determine the Total CFM Required For Your Whole System. Step Four: On Your Drawing, Sketch Out The Position of Your Main Duct Line. Step Five: Determine The Size Of your Ducting.
How can the dust collector efficiency be increased?
3 Cheap Ways to Increase Efficiency in Dust Collection Systems Ensure Filter Bags Are Installed Correctly. Install a Clean-On-Demand System. Integrate All System Controls (Clean-on-Demand, timer boards, manometers, etc.).
How long do dust collectors last?
Answer: Baghouse filters have an average service life of 1-3 years in most applications. Some can go beyond that without major increases emissions, while others may last less than a year in more difficult applications.
Do dust filters work?
Research shows that filtering the air can indeed help to remove harmful particles from indoor spaces, particularly allergens, smoke, and mold. Still, air purifiers work best in conjunction with proper filtration and home cleaning techniques.
What is the purpose of dust collector?
A dust collector is a system used to enhance the quality of air released from industrial and commercial processes by collecting dust and other impurities from air or gas.
Is PVC or metal better for dust collection?
PVC dust collection is perfectly safe, much cheaper and much easier to install than metal. The velocities and volumes generated from your average hobby or small shop dust collector is not nearly enough to cause a static discharge that could result in a deflagration of a dust cloud.
Should I ground my dust collection?
All dust collection systems build up static electricity and if not grounded, that electricity becomes a hazard that could start a fire.
Can you use Schedule 40 PVC for dust?
What kind of PVC is best for ductwork? Schedule 40 DWV (drain, waste, vent) PVC is the heaviest and thickest wall material commonly available, and it works great. This is covered in the Popular Woodworking webinar “Dust Collection Ductwork.”May 8, 2014.
How many CFM is the Harbor Freight dust collector?
With 1550 CFM air flow this portable dust collector is more effective than many big stationary units. The upper filter bag screens out particles as small as 5 microns – 1/10 the diameter of a human hair. The lower collection bag is translucent so you can see at a glance when it’s time to empty.
How many CFM does a shop vac have?
As of this writing, a ”6.5 peak horsepower” Shop-Vac® vacuum rated at 9.3A@120V produces 185 CFM (87 l/s) of airflow and 64 inches (160 mbar) of pressure.
How do you size a cyclone dust collector?
First calculate the total cloth area of your collector by calculating the total filter area of each filter (bag diameter x 3.14 x length ÷ 144 [for number of inches in a square foot] = filter cloth area) and then multiply that figure by the total number of bags in the collector.
