They are prone to sliding and breaking the seal so you can either foil tape them, or just brush on sealant when youre all set. To me, that means hex-head self-drilling. Therefore, the static discharge will occur and cause problems. On larger ductwork, youll often see the contractor apply sheet metal strap along the elbow to hold the segments in place, then seal the whole thing. Generally, ductwork configuration for best airflow is fairly intuitive.
Plus, its not getting close enough to the recommended CFM because of the higher static pressure the smaller diameter flex hose has. 
Corners, elbows, and other fittings are well designed to increase the suction power by providing space for proper airflow. Most excellent! Because it doesnt reduce the power of the central system as 6 metal pipes do. Wood dust is explosive with static discharge. Metal dust collection pipes are popular in professional woodworking spaces. I also tend to put some force on them when I disconnect them occasionally, so having the fitting there strapped helps. If you have a benchtop planer with a flex hose attached to the dust collection port, youve probably gotten a shock from touching it while it was drawing chips. Solid metal pipes are expensive but totally worth the money you spend because they are easy to route and install due to their flexibility. Additional shipping charges will apply: Under $200.00 will be charged an additional 13 percent (minimum charge is $7.00), $200.01 to $500 will be charged an additional 10 percent. Most people nowadays use brackets to hang dust collector pipes.
Its a matter of personal preference. I want you to optimize and elevate your woodshop to a work of art for a more inspiring and prolific experience. 30 degree or 45 degree branch angles are available, but I like the ones that angle more in line with the main run, for obvious reasons. I inherited a woodshop that had been dormant for 27+ years at my school. People can get pretty crazy with that in their home shops. I use these for portions of the ductwork under higher stress, such as where flex hose yanks on the drops when the machine is moved around. Planning for new machines and projects involves sourcing duct that removesdust and debris from the workspace. When installing the ductwork, youre often on a ladder holding the ductwork with one hand and trying to hold the drill/ driver in the other. With metal ductwork, this isnt an issue. The pipe size is also a factor you should consider when selecting a type of pipe for dust collection. When I was setting up dust collection for the first time I was wondered, What kind of pipe to use for dust collection?
But, as an engineer I know better. If you calculated that you need 5 ductwork, but your jointer came with a 4 dust port, I strongly suggest you either buy or make a replacement dust hood/ port that matches the duct diameter. category and read those first. Once youve put all the fittings on the floor or bench facing the right direction, you can mark the correct side to crimp, so you dont accidentally have it face against the airflow direction. I also find that larger shavings clog up the 4 jointer port anyway. Only the surfaces of the pipe that are directly contacted with the wire will be grounded and still buildup static discharges. If you have left-hand, youll need to make sure that the clamps are bent the right way.
My #DIY #PVC dust collection systemwhat a difference! 
I buy 1.5 R/D, but I still have some 1.0 R/D that I intend to replace. Youll just have to open the blastgate, and hit ON using your keychain remote.
But you need to make sure the ABS pipe system is properly grounded to avoid creating static discharge because combustion can take place under ideal conditions.
I use duct sealant (mastic) which is designed to be brushed onto seams and fill all the gaps.
Am I missing something? Metal dust collection pipes come in various sizes. With metal ductwork in a variety of sizes and connection types, we are able to provide the right dust collection pipefor your project. GeoTech students engaged helping Kevin do some sheet metal work on the dust Collection system #geotech pic.twitter.com/recWlIdhH3. So once youve bought all the Legos, itll probably take an afternoons worth of time to put it all together. When laying out the elbows, face the crimped end toward the collector (in the same direction as the airflow). These are stiffer and have a lower likelihood of leakage, but more expensive. Getting back to $, the overall runs werent all that long. Youll no longer have to hook and unhook flex hose from the machine youre about to turn on, turn on the dust collector, then the tool. Fittings are constructed of 20 gauge steel.
Im investigating about Hanger separation recommended for dust collection systems. I feel strongly about it and really like mastering more on this subject. but generally by getting this kind of tape you know its good for temperature variations, which you probably have in your shop.
From this article, we have answered what kind of pipe to use for dust collection by taking metal and PVC pipes. How I went from a cluttered and disorganized shop to a super-productive layout with a convenient dust collection and electrical set-up. My first design made assumptions about my dust collectors CFM/ Static Pressure capability. // To me its more annoying when I touch it or brush against the flex line. ABS pipes are easy to install and inexpensive. Click here for the woodworking plans: Dust Collection Plan. But it allows the flexibility to be modified down the road. Also, when it comes to the sheet metal thickness (gauge), the higher the gauge number the thinner it is.
Inevitably your walls arent plumb or square so having some leeway (adjustability) is nice. So we are learning how to make mufflers and silence the bag house as best we can while planning runs and getting the duct work in place. The Jointer I have comes with a 4 dust port but I find that it clogs with shavings. This will especially happen in a hot garage, humid basement, or hot attic space. Enjoy woodworking! You also dont have to do it all at once; of course design for the whole shop first but you can always run enough duct to catch a few important machines and do the rest as you have time. Excellent resource for someone like myself just getting started in shop set up. I added some foil tape to the body to help with that Make sure the air suction, when closed, pulls the metal gate in the same direction that the locking screw pushes on it for a better seal.
If you want to ground the entire PVC pie system effectively, better to cover the entire PVC pipe system with conductive coating and ground the pipe inside components at the end of the pipe. I prefer sheet metal ductwork; theres only a slight learning curve. Those brackets have the radius same as the pipes. With the proper ratio of dust to air, it is well known this can cause a disaster.
It is very helpful for me. If you have any questions about these charges, please contact customercare@rockler.com or call us at 1-800-376-7856. Both PVC and metal pipes have their own qualities, advantages, and disadvantages. You can really ease up the resistance to airflow by making the turns more sweeping and gentle. But on the other hand, 4 PVC pipe cuts the airflow than 6 PVC pipe. Moving air causes a significant amount of static electricity. Because grounding is so cheap and easy, I figure Id do it. Now Ive developed a calculation spreadsheet with true engineering fluid dynamics formulas and minimized rules of thumb. The higher this ratio the more gentle the sweep is. Stainless and galvanized pipe keeps work environments clean and safe. Just going to Rockler, hopping on Amazon or the Penn State Industries website isnt enough; you want know what youre looking for and narrow your buy list. Thanks for a really thorough article on dc design, setup, and some theory. 12 Benefits Of Rubberwood, Is Elm Wood Good for Furniture? I use wye-fittings for all branches from the main; I added a few for future tools I plan to buy. Basically it comes down to safety concerns of static electricity build-up caused by dust rubbing against PVC piping. Less static pressure loss means more CFM at the tool, which is critical for fine dust extraction. I dont have a total cost, since I bought the fittings and ductwork over maybe a year or two. For elbows, the individual joints move around a lot so seal those when finally installed. It is lightweight, easy to use, and most importantly it is cost-effective. WoodChip Tip: If youre running one machine at a time, theres NO reason to have your branch ducts sized less than the main duct. Walter Parker is a woodworking enthusiast. The self-drilling screws allow you to just push against the sheet metal while spinning it and itll go through the sheet metal and drive tight in one step. Items shipped directly from the manufacturer cannot be returned in store. So, my ductwork sizing might change from that, but the layout will be pretty much the same.
(How To Use It on Wood), Small bending corners reduce the suction power, Plastic tee fittings arent suitable for dust removal. Ive never encountered this static electricity problem you describe running a 5hp Clear Vue dust collector. Each tool will get a blastgate. More pipe work on the miter saw station. Do you still need to run a ground to metal ducting and if so where and how many or how often? Choose the right fittings for more airflow; there are a lot of restrictions already in a dust collection system so why make it worse by choosing the cheap ones? Inevitably youll forget something and lose momentum during the assembly. Its a few dollars more but I think its worth not having to worry about it pealing off over time; Ive experienced it when I made my insulated garage door panels. It gets hotly debated but honestly its so easy to run the wire that it didnt seem worth the time to me to take the chance. check out the. For vibration isolation purposes, I do have a short plastic flex section near the collector, so jumping a wire across that is a good idea, and since its cheap and easy to do its not worth it to me to research how necessary it is, I just figure do it. By Bill Pentz in forum General Woodworking and Power Tools, By Bob Borzelleri in forum General Woodworking and Power Tools, By Steven Wilson in forum General Woodworking and Power Tools, By Sam Chambers in forum General Woodworking and Power Tools, Metal Home Depot Duct and Dust Collection, Dust Collection - my latest two cents worth, Q: Dust Collection System in a Small Shop, If this is your first visit, be sure to
YMMV. Dust Collection System Design and Equipment, Blast Gate, Elbow, Hose Clamp, Hose Hanger, Junction, Y Fitting, "T" Fitting, "Y" Fitting, High-quality brands and products you can trust, Expert advice and free post-purchase support, Exclusive, innovative products that help you Create with Confidence, Detailed instructions, technical specs and guides to make the most of your purchases. So, it will never move at all. And, if youre on Twitter, be sure to follow #woodchat every Wednesday night, at 6:00 pm, PST. The time benefits alone are worth the brief learning curve effort. No real need for heavier gauge unless youre operating a 5 hp machine or something. If you dont have a good dust collection setup it can feel like youre spending more time cleaning up than actually working on projects. PVC is an insulator and static discharges dont travel across the pipe so easily. The above pipe types differ in pipe size and you have to select one according to the type of job.
Even though metal dust collection pipes are expensive, they wont develop static discharge as PVC dust collection pipes do. Sound familiar? Place the rigid sheet metal duct drop with its blastgate as close to the machine as you can without the flex hose interfering with the infeed or outfeed. You reduce your static pressure losses (resistance to airflow) by using wye-fittings rather than tee-fittings. Even though PVC pipes are grounded, but still problems will occur. Im always surprised by how much of a shock dust moving through a non-metal tube can be. How much did your system end up being? By drawing your ductwork to scale, itll give you an idea of how many feet of straight duct youll need. The first ducts I bought were for the critical machines like the Table Saw and Planer, where a lot of chips and dust is created. Most of you know that duct tape isnt really for ductwork. (1) Spiral Pipe or Fitting for Dust Collection System. Although I could do this my thoughts are to run low against the wall. There are several UL-181 classifications (flex duct, fiberglass duct, etc.) Self-drilling hex-head screws are my preference for duct fasteners by far. I got most of the straight ducts from Home Depot, and most of the fittings online.
However, now Im willing to buy some components online so that I get exactly what I need, and buy the readily available parts at the home center. Enter your name and email below to get your free copy of this organized and detailed checklist to jump-start, Also, youll get weekly WoodChip Tips, design ideas, free useful downloads, free mini-courses, and other cool stuff in, Do you want a workshop that comfortably serves as your creative lair? JavaScript seems to be disabled in your browser. For these items, please call the store where you purchased them or our customer service department at 1-800-376-7856 so we can assist you. This electricity can cause dust fires/ explosions with the right dust-air mixture of dust that exists inside the ductwork. So, I highly advise you to stay away from using Schedule 40 Schedule 80 PVC for the dust collection system. Because when the pipe size is getting bigger and bigger itll eventually slow down the power of the central system. There are mainly two types of pipe that can use for dust collection. The parts list might look something like this: Then there are few tools a typical woodworker may not have but will need: These crimpers allow you to fit the ducts together; just remember to point the crimped end toward the airflow. @*/false; if (!IE) { return; } if (document.compatMode && document.compatMode == 'BackCompat') { if (document.getElementById("af-form-1847748224")) { document.getElementById("af-form-1847748224").className = 'af-form af-quirksMode'; } if (document.getElementById("af-body-1847748224")) { document.getElementById("af-body-1847748224").className = "af-body inline af-quirksMode"; } if (document.getElementById("af-header-1847748224")) { document.getElementById("af-header-1847748224").className = "af-header af-quirksMode"; } if (document.getElementById("af-footer-1847748224")) { document.getElementById("af-footer-1847748224").className = "af-footer af-quirksMode"; } } })(); I see it as a minor risk though, but it is a thing, in that a shock is produced in several types of plastic pipes.
By using a branched pipeline system, youll be able to collect sawdust generated in different areas. Thank you so much! With the high air velocites the static pressure losses are magnified much more than in a slower-velocity air conditioning system. They are. For me, while it may be safe to use PVC, Id rather just use sheet metal ductwork and not worry about it. Just make sure that whichever one you get will minimize leakage when closed. Woodworkers know the annoying static buildup that comes with PVC pipe. Make sure to provide 4,500 feet per minute velocity in the dust collection system to get sufficient suction power and minimize dust explosion. In this article, well explore what kind of pipe to use for dust collection and how to build a dust collection system. Ive found, however, that sheet metal ductwork is fairly simple to install (if you can figure out how to build furniture you totally can learn this), and not really that bad expense-wise. But on the other hand, 4 metal pipe cuts the airflow than 6 metal pipe. I buy 30 gauge and its been perfectly fine for my collector (nothing collapses, even with gates closed), but you may want a higher gauge depending on the static pressure your dust collector can generate. For more guidance in assembling your Workshop Design, click on the Starting? Have just enough flex hose to move the machine around a few feet. Bob.
[CDATA[ 3hp cyclones may require a higher gauge. Add strength with these superior dust collection pipes and fittings! I see that most people run their main ducts overhead and drop to the machine. Yes, ABS pipes are perfect for dust collection. Because when the PVC pipe youre getting is thinner and lighter, easier to work with. Where you have flex ducts you can run a wire to jump across. Especially when your shop has multiple saws, they could each have their own pipeline-like branches. I just read a lot about how to install sheet metal ductwork and dove right in.
We have some dust collection systems and I would like to know how to determine or what are the standards to install every hanger (separation between them). This will help mitigate dangers of static electricity vs. dust clouds. Those fittings are what cost a lot; the ducts themselves were not much. Some people have designed a pressure relief damper at the end of their runs with a spring-loaded door.
For international returns, please click here. I have one question. Ive known about these bridging hose clamps for awhile but I finally just bought some. Spiral seamed ducts are made on a machine that makes the longitudinal seam wrap around the duct. SMACNA has Table 5-2 Minimum Hanger Sizes for Round Duct, but it starts at 10 round. They sell general use foil tape, but the UL-181 is approved for HVAC ductwork. The only drawback you get is there are more seams in this elbow, so you need to seal them well. I want you to optimize and elevate your woodshop to a, Also, you'll get weekly WoodChip Tips, design ideas, free useful downloads, free mini-courses, and other cool stuff in, Dust Collection Ductwork and Fittings Done Right.
If feasible, as you acquire experience, would you mind updating your blog with much more information and facts? Now, looking around online I havent heard of someones shop blowing up where static sparks were attributed to the cause.
You dont want to start the collector with all the blastgates closed and wind up with collapsed ductworkit really can happen. Youll often see them in commercial buildings, especially exposed ceilings. .and the 'borg generally only as 24" lengths, rather than the more convenient 5' sections sold by Oneida. On Jan 03. But if the generating saw dust amount is high, better to stick with 6 metal pipes for an effective dust collection process.
Plus, avoid 90-degree fittings and use 45-degree fittings to have good suction power throughout the system. Below is my original dust collection layout. My New Dust Collection Filter Bags Arrived! You can install a spring-loaded safety damper that you can make yourself.
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PVC pipes are commonly used for dust collection because its light, easy to glue up or tape together, and inexpensive. Does JB Weld Work on Wood?
Our system has a 4 barrel shaker bag house with 64 bags and 15hp. I buy the longitudinal seamed straight duct that snaps together, and just seal the seam with duct mastic.
Snap-lock ductwork is easy to work with, including cutting. By diagramming it out, even if its just a hand-sketch, will help you count the # of each component you need. Schedule 40 Schedule 80 PVC creates low pressure on PVC that reduces the suction power of the dust collection system. Plus, never use Schedule 40 Schedule 80 PVC pipes because they are heavy and expensive. I dont think youd need a ground for metal ducting, assuming your metal is continuous.
I bought whatever they had at the home center, and pretty much figured its good enough. Kernersville, NC 27284, Call: 855-487-3828 You can use trial and error on the spring tension such that it stays closed with any one blastgate open but if you accidentally close all of them then this spring damper will open to relieve the excess vacuum inside the ductwork. While PVC can be cheaper, steel duct is more durable and easier to install. Right now, Im in the process of re-calculating the whole thing knowing my actual airflows and being able to predict my static pressure losses with various duct diameters and CFM values. For the best experience on our site, be sure to turn on Javascript in your browser. Any order over $500, the freight will be determined after your order is placed and you will be notified of the exact charges before shipping.
By using long-radius elbows, you give the air a gentle sweep to travel in, reducing static pressure (resistance to airflow), and you get more airflow (CFM) out of it.
I have a 2hp Jet collector and it seems to me that there would be more stress to pull the air up (gravity) then down rather than down then across to the collector. Pre-seal your wye fittings and straight duct while on the bench. You may also return purchases to a Rockler store near you for store credit. Both PVC and metal pipes are great for dust collection. Theyre just capped for now. Acetone is fine for that. SMACNA or your Mechanical Code will often have have a chart based on duct sizes and shapes. // ]]> Dust Collection System Layout Strategeries, This will be my 3rd (And I hope final) dust collection redo. Some of these are self cleaning in that the sliding gate goes all the way through the body to push out accumulated dust. Bridging hose clamps are better than conventional ones; however these clamps from Rockler work on right-hand swirled flex. The reason people are tempted to use PVC is that its easy to deal with (just like sprinkler pipe but on a larger scale), the piping is smooth on the inside surface, and its pretty cheap to buy. Email: info@us-duct.com. Currently the sound level is 105db in the shop! Safety, efficiency, and strength are coiled together in these superior dust collection pipes and fittings. Just what I needed! Metal pipes offer high strength, superior rigidity, and minimize static discharge in dust collection pipe. I am passionate about woodworking projects, plans, tools and gear, and techniques.
Youll have some extra weight on wye fittings due to the flex ducts and blastgates. I would like to do sheet metal ductwork, but it seems it will be incredably expensive compared to flex or PVC. Better to with size 6. I like to brush on the majority of it at the workbench to complete subassemblies, then do a final seal once its all installed in the permanent location.
I originally had my main duct at 5 and branch ducts at 4, mostly for convenience due to most dust ports and flex hose being 4. When designing commercially, there is a code compliance aspect to the design so following the code charts will be necessary (these include how theyre anchored as well, such as into concrete or wood, embeddment of the fasteners, what type/ size of fasteners, etc. Once you do the hard work of design and gathering all the parts, the installation itself is actually fun and not bad at all. If for any reason you are not satisfied with the merchandise you ordered, just return it within 90 days to receive a refund in the manner of original payment for merchandise only. Some people use regular caulking to seal the joints, but that can be messy and difficult to apply. This is a source of a lot of forum discussions/ arguments and some blog articles. Im Walter Parker. Manufacturer guarantees/warranties for power tools, CNC and laser products will supersede the Rockler Guarantee if these items are damaged or defective. Theres a reason professional shops have a centralized dust collector system; its much more convenient and efficient, and safer for those doing the woodworking. Therefore, brackets have become the best tool to hang dust collector pipes. When the PVC pipes are heavy, theyre difficult to handle and excess mass is wasted.
Pipe is made of 24 gauge steel. Herere the advantages and disadvantages youll get by using PVC as dust collection pipes. I'm the man behind WoodWorkly.com and the owner of Woodworking planet. Lay out the pieces on the floor to prepare sub-assemblies. PVC is the most common pipe type for dust collection.
From the flex duct and transitions at the machine to the components after the fan, we can help you price and build your projects. He is passionate about woodworking projects & plays with woodworking tools having spent over 2 decades as a leader for Woodworking Planet. However, it is often argued that in a typical small shop, the relatively small amount of dust isnt much of a danger.
So, lets discuss the qualities and properties of different kinds of pipes that differ according to their building material. Here I share with you how I did it and continue to turn my plans into reality Also, you'll get weekly WoodChip Tips, design ideas, free useful downloads, free mini-courses, and other cool stuff in The Other Side of Zero newsletter!
Save my name, email, and website in this browser for the next time I comment. (How To Use It on Wood), Is Rubberwood Good For Furniture? Buy like 6 feet of extra straight duct; if you buy the snaplock type dont assemble the seam so you can return it if you dont need it afterall. Your order will come with a return form with convenient instructions, or you may send your returns directly to Returns Department, Rockler Woodworking and Hardware, 4365 Willow Drive, Medina, MN 55340. This is because you can break the seal by moving the ductwork around. You can look online for what static pressure (look for negative pressure) each type can take. You need to get the most suitable pipe size for your dust collection according to the sawdust amount.
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