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wood-dust-collection-design-2018 Dust Collection for Newbies: Introduction to Dust Collection.  WOOD DESIGN. • 18 тыс. просмотров 4 дня назад. All About Dust Collection. Collecting and exhausting dust at its source, before it reaches you, is the most efficient way to deal with wood dust. That’s why woodworking machines—from tablesaws to disk sanders—come with exhaust hoods or ports. “A typical exhaust hood,” industrial hygienist Richard Supples of Applied Improvement Technologies in Shelton, Conn., explains, “creates a capture velocity and effectively ‘grabs’ the dust particle and transports it through a duct/filter away from the worker.” by Asa Christiana. Step Up to Whole-Shop Dust Collection. This article offers a number of tips o. See more ideas about shop dust collection, wood dust, wood shop.  DIY Shop Vac Dust Collector: Like a lot of people, after retirement I built a woodworking shop. I looked at the commercial dust collection systems, and did not like the look of the 4" hose laying all over the shop. I also did not think I needed the capabi Crochet Afghans. Tunisian Crochet Patterns. Crochet Motifs. Crochet Quilt. Crochet Squares. Some experts argue that they stir up the fine dust, and make health conditions worse. I know how much dust woodworking produces, even with hand tools, and I love to read and hear other ideas on dust collection systems. Landscape and masonry products manufacturer. First, the dust and chips go through the fan. Begin with the primary machine that wopd furthest from where wood dust collection design 2018 will place the wood dust collection design 2018 Table Saw Primary Radial Arm Saw Dust collecting unit. If re-wiring your shop, consider making your electrical system scalable. Desig borrowed a new UFO, same as my old collector, to see if anything had been changed.

Tablesaws with enclosed Skip to main content. Dust Collection. How to buy a dust collector. Choosing a dust collector can be anything but simple. We've stripped away the mumbo-jumbo to show you what you really need to know.

Busting dust in a basement shop. Put an end to dust migration from your shop to the house. More horsepower does mean more noise; both registered 85 decibels at 8 ft. The Delta comes wired for volts but can be switched over to volts. The Oneida comes without cable or switch.

It can be wired to run on either current. A 2-hp unit can sometimes handle two machines at once Hooked up to two 6-ft. When I connected the 2-hp units to the PVC duct system, they too were robbed of considerable power, but one machine could be operated at a time with satisfactory results.

When connected to a metal duct system, the Jet collector really moved a lot of air, cfm at the tablesaw-jointer connection after about 25 ft. With two blast gates open, the air volume was reduced to less than cfm, still acceptable for some operations. The Dust Boy produced slightly lower readings but still had more than enough power to run one tool at a time in any configuration.

If you regularly operate more than one machine simultaneously, it would be wise to look at 3-hp or bigger dust collectors. They cost more, however. Most 2-hp collectors come wired for volts. The Dust Boy can be run at either volts or volts.

On the matter of choosing a dust collector, a two-stage cyclone gets my top vote. A small cyclone collector takes up less room, is easy to empty and runs very clean. For example, on all of the single-stage units, even after running them for only an hour, fine dust appeared on the machine and in the area around it. The Oneida cyclone, outfitted with an internal filter, rubber gaskets and wide metal ring clamps, seals better.

Two-stage units such as the Dust Boy Delta also makes a two-stage collector are also nice and compact. The Dust Boy takes up 6 sq. The Dust Boy as does the Oneida comes with a Leeson motor and cast-aluminum housing and impeller fan , and the sturdy plastic barrel holds a lot of debris, 55 gal. Before it can be emptied, however, the heavy motor and housing must be lifted off. Removing the lower bag of a single-stage collector is an easy matter of loosening a band clamp.

The real fun begins when you try to reattach it. The lower bag must be wrapped around the metal waist of the machine and held in place before the clamp can be cinched. Some manufacturers, such as Jet, add an elastic band inside the lower bag to facilitate reattachment somewhat. The skirt and a standard gal. I just wish the skirt were made of felt rather than the more porous woven fabric.

This setup will reduce the air volume. When an ad says a collector is rated at 1, cfm, what does it mean? Not much, really. Cfm stands for cubic feet per minute, a measure of the volume of air moving past a point of reference.

The cfm figure needs to be put in the context of the amount of resistance, or friction, present called static pressure, or SP. Air moving through duct or hose encounters resistance, just as a person would slipping down a water slide.

The more bends and bumps, the slower the ride or the lower the air velocity and volume. Many manufacturers rate their machines without bags or duct attached. While trying out a number of dust collectors, I measured their performances under real working conditions, using flexible hose, PVC pipe or metal duct in my sq.

I also measured collectors hooked up to a straight piece of 6-in. Collectors ranging in size from 1 hp to 2 hp have impellers fans sized from 10 in. All things being equal motor speed and impeller design , a bigger impeller coupled with a bigger motor will move more air than a smaller pairing.

There are some differences among collectors; to learn more, ask a manufacturer for an impeller performance chart. As soon as any collector is hooked up in the shop, performance declines in relation to the length and type of hookup. Materials that affect airflow. The metal elbow top , which is designed for central dust-collection systems, has a gentle sweep, which lowers resistance to airflow. Plastic PVC pipe has a tighter-radius bend and restricts airflow more.

Ribbed flexible pipe also disturbs airflow, up to three times as much as metal. Hooked up to two 6-ft. With a larger upper bag, I found that the cfm readings were not compromised. Record any reducers or rectangular to round transitions on your take off list. Using Table , determine the CFM requirement of each branch. Remember the FPM for wood dust in branch lines is Identify your primary or high-use machines.

These are the machines that operate simultaneously on a frequent basis. The objective here is to define your heaviest use scenario so you can size your system to meet it.

Including infrequently used machines and floor pickups in your calculations will only result in an over-designed system that will cost more to purchase and to operate. At this point, all of your branch lines are sized, and you have a list of all components required for your branch lines. Now you are ready to size the main trunk line. Begin with the primary machine that is furthest from where you will place the dust Table Saw Primary Radial Arm Saw Dust collecting unit.

Note: If a non-primary machine or pick-up is added to the system between primary machines, the size of the run is not increased. This not only assures adequate air flow but also anticipates a future upgrade in machine size.

In this step, you calculate the Static Pressure SP or the resistance of your system that your dust collection unit must overcome. To do this you total the Static Pressures of the following system component groups:. Calculate the SP of all branches to determine which has the greatest SP. Only the branch with the greatest SP or resistance is added to the total.

You can use the charts on pages to assist in your calculations. You now have the information you need to specify your dust collector.

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