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How to Build a Powder Coating Oven?

View: 202 Date: 2023-04-03 15:14:21

Don't be intimidated, people! If you've never tried a project like this, I promise it's doable! If you're looking to finish large metal parts, you have two options: invest on a powder-coating oven or get creative and DIY your oven. It's a game-changer for getting that perfect powder-coated finish on your parts. 

This special equipment bakes and cures your parts perfectly, from powder-coated to done. Once you build the oven, you can use it in various powder coating applications. Here are the necessary procedures to take to build your powder-coating oven.

 

coating oven.png


Tools And Materials

 

Before we start on the project, the following are some materials and tools you might need;

  • Rivets 
  • RivetGun
  • Studs
  • 20-& 16-Gauge Sheet  Metal
  • TinSnips

 

How Do I Build a Powder Coating Oven?

 

Framing 

 

Let's start on the first step - assembling the square base section. It's super important to get this part right, so ensure the floor is cut and measured to fit your oven's exact dimensions. Galvanized steel studs are most suitable for oven framing. The studs (3 5/8" wide x 1 5/8" thick) should overlap to fit inside f one other at the corners.

Use a c-clamp with a lock to hold them in place. After you cut the floorboards to length and riveted all the sides into place, you can add extra studs for support. 

The floor must be sturdy enough to hold not just the oven's walls and components but also powder-coating shelves. So that the floor doesn't buckle, select sheet metal of appropriate thickness and brace well enough so it's stable. Do the latter for the walls and ceiling. Set the walls above the floor, then rivet each to the ground and the wall at the back. 

 

Interior Skinning.

 

After the framing, you can start covering it with metal siding. You don't want any issues with rust in your oven, so you'll need long, straight pieces of galvanized steel sheet metal (16-26 Gauges). Sheet metal 16 gauge is suitable for the initial layer and rivets it to the floor's underside. Then, you can reinforce the base by installing studs.

A high-temperature sealant will be handy before you rivet your sheet metal and frame, as it helps guarantee an airtight barrier between the two. The sealer will make it much more difficult to take apart the oven in the future if that becomes necessary for any reason, so first think about it!

 

Convection System

 

Now it's time to mount the convection fan at the oven's upper part. This installation will ensure even heating in the oven. The ductwork is responsible for transporting air from the ceiling to the floor. It goes from the oven's sidewall to its fan at the top. You need a good sealer on your ducting if you don't want air leaking into the oven's framework. And voila! Your oven's convection system is now complete.

 

Lighting

 

Locate the duct cap. This is where you'll mount the porcelain light holder. The lamp holders' mounting hardware requires that holes be drilled. As an added measure, a hole needs to be made in the middle to reach the terminals for connecting the wires.

Then, you'll need to attach the lamp holder end cap to a duct flex connector. Use steel studs to frame the structure. Also, ensure the three lamp assemblies have ceiling-mounted duct cap cutouts before installing them.

 

Insulation

 

It's important to insulate all the walls of the oven. The insulation prevents heat transfer between the oven's heated interior and cooler exterior. Thankfully, most insulating materials have an R-value considering thickness, making them easily comparable.

A higher R-value indicates better insulation since heat transfers to the environment faster. Consider how thick the oven walls are to determine how much insulation you need. Mineral wool and fiberglass are the most suitable insulating materials for your oven.

 

Heating Elements

 

The wattage of your powder coating oven's heating element should range from 2,000 - 3,600. The heating element can be 100-150 watts(for a cubic foot), so keep that in mind when figuring out how much power you'll need. For efficient curing during the cold, you need 150 watts (for a cubic foot).

You may estimate the total wattage needed for your oven's heating elements by entering the oven's internal measurements in inches, the local average temperature, and your desired temperature. If you enter your target oven temperature into the calculator, it will tell you how long it will take to achieve that degree.

 

Take Away

 

That’s it! The good news is that you can make the number of powder-coating ovens you want. The materials are readily available, and the procedures are clear and simple. However, making your powder coating oven calls for little more than the proper materials, some clear instructions, and some time. If you need help with any of your powder coating oven needs, Ramseier Koatings is here to help.

 


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