Great article! Lamps can be used to cure powder coating, however it is not as simple as pointing a lamp at a part. what would the cost be to build an oven that is 10' wide by 8' high by 40' long?? These are the same studs used to frame homes. We build our gas ovens with the user in mind as a quality, professional and cost effective addition to your curing process. While it is not supposed to be flammable, it would likely loose its insulating properties at 400 to 500 Degrees F. This is an assumption on my part because I cannot find the information online and usually spray insulation capable of handling enough heat are generally much more expensive than the Fire Break spray insulation. Do you happen to know what type of sheet metal they used on your oven? Some I forgot.. You can pick up a metal cutting circular saw blade cheap and avoid shearing fees, cuts 16/20 gauge very cleanly just use a rip guide. Such as these: https://www.amazon.com/Stainless-Steel-Rivets-Diameter-BCP465/dp/B07FMCPZMY/ref=sr_1_14?ie=UTF8&qid=1540183374&sr=8-14&keywords=1000+rivet+1%2F8+steelThey are 3/16" Diameter x 1/8" Grip steel blind rivets. Thanks again,Randy. I don't want to add more heaters.1. hi ! - Create a more typical Convection design by enclosing elements in the walls and use the circulation fan to push air through the elements and into the oven heating space through vents leaving no elements exposed. Definitely let me know if you decide to tackle that build. You could use the steel if you want to shape it, but using the pre-fabbed ducts are a lot easier and ensure a good seal. That is if you remove the mini access door with window, lights, the convection blower, 2 oven elements, and you do not recess anything into the walls. If that doesn't work, I've got a 1500w system that I'll swap the elements with. Just to be sure when put 2 metal stud and metal track you put to make kind of squard or in the same direction. I have included this info in the article along with a link to the product. For sheet metal, I would use 18-20 gauge and 16 gauge on the floor. This oven is built and tuned in house ready to to be piped in and tuned by your mechanical contractor. Our 8' x 8' x 20' gas fired curing ovens meet all requirements to make them a Class A oven. I'm in the process of mounting my elements and the connections would be a few inches into that insulation for the floor of the oven. I want to build a 8'lenth 5'wide and 8' high oven for ceramic coating what would you recommend sheet metal size, insulation and heaters, Does process change from how you described it and can I weld inside, in all the corners. Hi thats a great build! These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. I may be in the wrong spot but I need to know what I need to build my pid. Do I have to have circulation for this build to work? Whether the blower is mounted on the top or on the side, the temperature of the air will be similar. The piece that angles the duct from the wall to the top is called a stack duct elbow. I am going back to my 8.5x3wX6 tall and that dropped my time down big time. Can you answer this? The temperature probe is built into the inside wall of the oven to prevent damage. The framing for this oven will all be made with galvanized steel studs and track. I like the design. This oven is built and tuned in house ready to to be piped in and tuned by your mechanical contractor. Hey Sean, im having trouble sourcing steel studs that will work together with each other. As long as your PID settings are dialed in correctly, I would say that you just need a little bit more wattage from your heating elements. I have been trying to think of solutions if this where to be an issue and this is what I have come up with (reminder: I don't Know what I'm doing..lol) - Create some type of diffuser/heat shield to reduce direct heat to substrate by either placing some sort of high temp mesh barrier in front of elements or use a high temp grate or louvered metal (similar to the ones used on A/C unit room doors). I am thinking of doing this with a sea container. They are a hair wider than the studs, so the studs fit inside. Use porcelain fixture as a guide to mark the duct cap. They are available at both Home Depot and Lowe's for about $7.00 each. The temperature probe is built into the inside wall of the oven to prevent damage. If you wanted to build a bare minimum version of this oven but still the same size, I would put the cost at around $1,000. The temperature probe is built into the inside wall of the oven to prevent damage. On this same cap, drill two screw mounting holes on either side of the previous hole (3 1/4" apart). Upon popular demand we are now offering an upgraded replacement control panel. I have CNC plasma cutter table 4x8 is the max I can cut. Pre-Cut Rack kit Requires wedling for assembly. We will start with the framing. The motor has a cooling fan that can't function properly when closed in like shown. Awesome, I must say your Write up of this has made is much easier task to build one, I was intimidated at first but you have answered most of my questions. They are easy to drill and they can be cut with tin snips or a chop saw. I am only powder coating for my self. Household ovens are built to power 1 heating element at a time and it is very unlikely that 1 element would even get an oven of this size up to 400 degrees. It is best to buy a bunch of these to begin with. Sean,Another question for ya. Our 6' x 6' x 12' gas fired curing ovens meet all requirements to make them a Class A oven. Wheel the rack over to the oven and slide the rack off of the rolling base into the oven. One more question: Is the oven explicitly vented so that there's no pressure build up as it heats up? In looking at your blower setup, I was having trouble seeing how the air circulates as it exits the triangular chamber. Good luck with the oven build, I also prefer to do everything myself. You should see almost no change.Yes, in terms of R per inch, there is little to choose between fiberglass and mineral wool. Using an equation I found, it came out to 1,700cfms but I don't know how accurate that is since the equation did not include the amount of air changes per hour or anything like that. Working with these is pretty easy as they are quite thin (25-gauge). 27320, Monday - Friday: 9:00am - 5:00pmSaturday - Sunday: Closed, We acceptVisa/Mastercard, Discover, American Express, Cash, Powder Coating Ovens Powder Coated Ovens Powder Coated Ovens NC Reidsville Powder Coated Ovens Industrial Ovens Commercial Ovens Shop Powder Coated Ovens A2Z Powder Coating Oven Specifications Free Estimates Custom Ovens Custom Designed Ovens Custom Powder Coating Ovens Shop Ovens Shop Custom Ovens Build Custom Oven. I have never messed with steel studs before, but 25 gauge seems awfully thin. On units 20' and longer an additional circulation fan is installed for ensured heat circulation. I know there are steps to take to make sure the walls don't get to hot. It is very common to use 18 to 22 gauge sheet metal when building powder coating ovens. Due to the increased size we're considering using a 380,000 BTU propane burner. This is excellent. Our 8' x 8' x 12' gas fired curing ovens meet all requirements to make them a Class A oven. thanks again. I am alittle confused on a couple things. OR, instead of decreasing the size of the oven build, you can pay to upgrade your service, or you can look into a gas-fired oven. For an oven this size, it takes ~8000 watts worth of heating elements to get it up to temp in a reasonable amount of time. and the Outside box I am using. Hope that helps! you have helped me out with powder coating !! I WAS ORIGINAL LOOKING FOR A HEAT SYSTEM TO FORM PLEXIGLASS. For the best experience on our site, be sure to turn on Javascript in your browser. I was thinking of making a steel frame for the oven to sit on so it's not in direct contact with the floors. Hope that helps some. The heat from the lamp has to be contained in some way around the part so the part should still be in some type of insulated box while using an infrared lamp. Then frame the assembly you have made with the same steel studs that have been used throughout the oven build. thank-you this is very helpful and i plan to start buying materials. I may be wrong, but that is how the infrared curing lights work. The countersunk pull themselves flat nicely to prevent high spots between the studs and sheet metal. We build our gas ovens with the user in mind as a quality, professional and cost effective addition to your curing process. What kinda sheet metal are they using in this build? Our 10' x 10' x 30' welded tube frame ovens ad beyond durable welded with 3" steel tube with 3 inch rock wool insulation sheeted with G90 galvanized sheet metal. great article. where can I get a plug and play control panel, I only know of two places. You should see a large loss of fiberglass insulation in the vicinity of that spark. This build uses 20 gauge steel everywhere except the floor, the floor uses 16 gauge steel. The studs for the interior skin being offset to the exterior studs with the insulation weaving between the studs.cheers, Hi After more consideration of the design, I would add that the ducting for the blower is all insulated from the external skin. Hi I'm looking at building an oven 3x7x25 so approx 500 sq ftIm in australia and my maximum power supply is 60amps at 240 volts so 14400 Watts Outside temperature ranges from 60 to110Is it possible to heat an oven this large with this amount of powerThanks. The main purposes of this fan is for better and more uniform heat circulation throughout the oven chamber. I want to build one of these ovens and put it in my shed/barn, but the problem is the floor is plywood and I am concerned about fires. But it is my understanding that they work on more of a line-of-sight basis than to actually heat up the entire oven to the proper temperature. The temperature probe is built into the inside wall of the oven to prevent damage. There are wiring diagrams available though such as this: http://forum.caswellplating.com/forum/powder-coating-questions/oven-building-forum/11867-oven-controls-build. These come with two 40A relays, capable of handling two elements each. I used your build as a model when building my oven to include the convection feature and the oven light detail. I mounted and insulated the blower but I feel it is getting too hot. Can the heating element terminals touch the insulation or should I remove the insulation from around the terminals? This oven is built and tuned in house ready to to be piped in and tuned by your mechanical contractor. Unfortunately, I don't have any personal experience with infrared heaters. Search on google for steel stud distributors around your area. We build our gas ovens with the user in mind as a quality, professional and cost effective addition to your curing process. Use mineral wool insulation. Copper wire isn't cheap. Interested in building this exact size for my shop, but have a question first: When using PID controllers, can the PID limit the amperage drawn by the elements? also don't have a powder coating company in my town.. Could you use the expanding firebreak spray insulation in this? Only the bearings are high temperature. I did not see an answer from the question above "Also how big are the squares that you made for the elements in the frame?" I have a dumb question hopefully you can answer. maxes out at about 340*F after about an hour. Thoughts?? The shaft would need to ride on a set of bearings. Perhaps a comment on the shape? Enter in your target temperature for the oven (for powder coating, I shoot for 450 to 500 F)4. I had a question involving the temperature of the outside of the powder coating oven. There are some ceramic coatings that cure at a higher temp than powder coat so I will give your recommendations based on an oven that cures at 500 degrees. I would advise you to join the Caswell plating forums and ask this question in the oven building section. Should i use permatex to seal them up, or leave them. The oven in this build with all of the bells and whistles ended up costing the builder $1,400 USD. This is my Go2 reference. Hey what would you do differently to make the floor flat so you can roll a cart in the oven? In theory, for that size oven, you should be right around 1000, but increasing the element to 1500W or 2000W should allow you to reach the correct temps in a reasonable amount of time. You can tell as the 20 amp outlets have a horizontal cut in one of the slots as well. i would like to know a rough estimat eon materials if possible thanks in advance . WOW, that would make for a monster powder coating oven. There is a fairly accurate calculator to help you figure out how many total watts you will need to heat up an oven in an acceptable time frame. If your fan is blowing powder off of your parts, you would either need a different fan or find a way to reduce the fan speed so there is not so much air pressure inside the oven. Yes it can be done with 6" studs and with the right planning, you can build everything into the walls without having any boxes protruding from the sides. I had a question about insulation. Is there anyway I can put elements on the top as well .. 2 lower and 2 upper ? This site has helped me so much with finding info. In use, there is a difference, and any fractional savings in making an oven will become apparent.XWhat is commonly the largest barrier to heat transfer, is the presence of interfaces. If you were to use 3000 Watt heating elements, you would need between 8 and 12 of them. This results in oven temps that can fluctuate 25 degrees in either direction. Do you have a better view of the actual air flow path? So my real concern is the plywood floors. It is the "6-inch Duct Cap without crimp" mentioned above with a hole cut in the middle of it using a hole-saw. Most people just opt for an oven due to the cost and complexity of the infrared lamps. Meaning the area of the part that is facing the heater will cure, but the other sides will not, meaning you would have to rotate the part so each area is facing the heater for the correct time at the correct temperature. I did get a little lost inthe blower/ducting section and I think a pic or two taken at a distance would have made it easier for me.I realy enjoyed the guide and feel like I could go buuild one easily from it. thanks sean for the well planed oven it started me on my path to building my oven my oven is 6ft high 6ft long and 4ft wide having only a 30ftx24ft garage I decided to put mine on casters so I built a 1" hss frame then used the metal track and studs then skinned it with 20 gauge and used 2"rockwool purched a pid from powder by the pound and a door seal I have installed 4 3000watt elements inside same way you did oven glass in front door blower in top mine has 4 lights just tried it for the first time it took 32 min to reach temp holds the heat good i have 40+yrs in liquid coatings with a nace certifaction by only a novest at powder so if i apply the powder put it in the oven say at 200 pmt and let the oven build to 400 or what the powder calls for do the cure for 15 or what the powder needs to cure this oven takes like 20 to 30 min to cool down that is the proper way to cool it i think thank for the links and info saved much research time. It will estimate how long those heating elements will take to heat up your oven (adjust the heating element wattage until you reach an acceptable time about (20-30 minutes)Some things will affect this such as your insulation, mineral wool will allow the oven to heat up faster than fiberglass insulation. 172 Live Oak Road Cause of the elements inside of the walls? I'm building a large 6x7x18, 750 square ft oven. On the other non-drilled 6" duct cap, drill a hole to allow the light to pass through. SO why have any more oven. Last but not least,Im far from being a Tesla ,I would like to know the correct way to wire all components,PID,Thermo-couple,alarms etc,etc.If by any chance you could share some knowledge ,I would be totally greatful,aside of the fact that if I complete this I will be broke lol,Thank you for what you are doing, and may the gods shine upon you. The temperature probe is built into the inside wall of the oven to prevent damage. What is your opinion on this? Steel track is very similar to steel studs except that they do not have a lip on the inside of the stud. It is better to drape an metal panel in front of the heating elements to prevent direct heating.cheers. We guarantee all of our builds and we enjoy working closely with all of our customers. Would it be beneficial to stager the 4 heating elements up the back wall for even distributing of heat, Do you have these measurements backwards. Your help would be greatly appreciated. If you are going through all of the trouble to build the oven, I highly recommend building or buying a control box as well. Man, I couldn't be happier with the way it turned out! Not only do we get 50% insulation, we get reduced heat transfer on the studs (by a lot).All theoretical, or at least mostly theoretical. I was wondering the same thing. Here is exactly what I am talking about: http://eyecit.net/?page_id=590 (copy and paste in browser). Floor space, better for hanging parts? I have not ordered my heating elements and want to keep building the walls. I made mine 36x36x72 and I'm making a rolling rack system and a sliding rack system for it. JavaScript seems to be disabled in your browser. These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. Thanks, the type of ducts used are called stack ducts or wall stack ducts. It will bulge out a little but it will still work. http://i21.geccdn.net/site/images/n-picgroup/AAP_SM-WSS90314.jpg. These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. Also burying the blower into the cabinet like shown subjects the wiring and motor to temps higher than they were designed for. Thank you for the great write up! I was just wondering if there are any blueprints for this type of oven? This size also Comes with dual circulation fans to ensure exceptional heat circulation. NC I'm working on a similar project, but it will need to be much larger dimensions(12'x12'x9'). It can be applied (stapled?) Our 8' x 8' x 8' gas fired curing ovens meet all requirements to make them a Class A oven. Thanks for reading! With the oven running at 400 deg the blower is probably 200+ at the motor. We build our gas ovens with the user in mind as a quality, professional and cost effective addition to your curing process. Thank you for noticing that and letting me know. It looks like some of them would install pretty easy in a powder coating oven. These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. Thanks. Also the thinner your sheet metal used to build, the faster it will heat up. Are there any additional considerations we will need to keep in mind to adapt your design for gas? I would re-purpose a convection oven fan. Using the BTU calculator, it is showing that you will need 20,000 Watts of heating to go from 65 degrees F to 500 degrees F and it will take 55 minutes. 40 amp SSR and max watts the 2 elements use will be 5120 watts. I am in the process of building the exact oven. I've looked at Lowe's and Home Depot and didn't see the full length galvenized sheet metal, only 12" x 24". These ovens arrive at your facility set up, tuned and ready to cook once the gas is ran and power is wired in by a licensed contractor. Does anyone know what trim piece was used on the bottom side of the lights? However, thinner sheet metal will allow the oven temperature to fluctuate more after it is heated up. Is there a posibility to get the wireing plan again because the link does not work. You will need to open it in a spreadsheet. Have the faster it will heat up, but I don't want to geek I'll either. The temperature probe is built into the inside wall of the oven to prevent damage. You would need to either use 5 or 6 heating elements to heat the oven. What a fun project. Thanks again for the help! For the longest life, the best option would be a belt driven fan that is driven by an external motor. As far as the rivets goes, the 1/8 x 1/8 1000 pack doesn't exist on Amazon anymore. Shelf Installation includes ONE removable shelf made of 1' x 1' square tubing topped with expanded metal for maximum hanging points. If I were you, I would definitely join the Caswell Plating forum and ask them the same question, they have a group of oven builder experts that are very knowledgeable. Building my own right now. What I might recommend for you if you want a decent size oven on tight budget is either a household double oven.With a double oven, you can cut out the divider, add some sheet metal around the cut edges and seal it all up with some high temp sealant. You end up paying for full sheets of galvanized if you build one this size anyway. Thank you for the time you put into all of this.I do have one question. 4 Switch Control Panel For Economy Electric Powder Coat Ovens This comes with the power and heater switch as well as two dummy switches wired to neutral for fans or lights. Wondering could you provide more details about the wiring of the unit please. Also How does the PID control work? It somewhat depends on what you plan on powder coating most often, but usually vertical ovens give you the most flexibility. this will conduct too much heat and increase running costs.there needs to be an insulating barrier between the internal and external surfaces with no bridges to conduct heat.either use Hebal paneling with tracks to hold them together for the exterior wall or a double skin of narrower studs. We also have prefabricated kits for beginners., Our booths are always tube builds that are welded.
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