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New Powder Coating Equipment > Powder Ovens

OUR BATCH OVENS ARE AN EXCELLENT VALUE AT A COMPETITIVE PRICE

Your oven is one of the most important pieces of equipment in your system and can be one of the most costly should it break down. You cannot afford to operate with a cheap oven and owe it to yourself to see the differences. We don’t use high pressure sales tactics, we’ll simply give you a price and let you decide. We can take this approach because we know that you will not find a better value for your money!! 

A typical batch oven uses a gas-fired burner and a large recirculation fan to move heated air into the oven chamber where it cures a batch of parts for a determined amount of time. At the end of the cycle the doors are opened, the parts are moved out and a new batch of parts is moved into the oven. That part is pretty simple but it is where the similarities end. There are a number of differences between our ovens and the “internet specials”, take a look!

OUR DOORS CLOSE INTO A REAL DOOR FRAME – NOT AN EXTERIOR MOUNTED PIECE OF FLASHING

Description: OBC-08-08-24-RB-1 Description: Rapid Oven

WE FABRICATE OUR DOORS AND FRAMES – THESE ARE NOT JUST OVEN PANELS

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INDUSTRIAL STRENGTH STRAP HINGES LAST - RESIDENTIAL HINGES GET LOOSE OVER TIME

Description: OBC-08-08-24-RB-1 Description: Rapid Oven Door Hinges Cheap

OUR DOORS HOLD UP TO CONTINUOUS USE - WE DON'T NEED WHEELS TO KEEP EVERYTHING STRAIGHT

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WE ALL KNOW HEAT RISES SO WE USE WALL DUCTING - OTHERS USE ONLY CEILING DUCTWORK

Description: Oven ceiling ducting

OUR OVENS HAVE INDUSTRIAL GRADE PLUG FANS - NOT CHEAP SQUIRREL CAGE FANS TO CUT COSTS

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WE USE DIRECT FIRED BURNERS – LINE BURNERS WILL HEAT UP SLOW & INEFFICIENTLY

There are many good oven manufacturers out there but we feel that we have the best ovens available for the lowest price and operating cost. Give us a try, you’ll thank yourself everyday that you did!!

For more information, please email or call us at 888.647.9929.

Buy Rite Finishing handles a wide variety of Drying & Curing Ovens depending on the needs of the customer and process required. Some of this information is discussed below, however, we welcome you to contact us at your convenience.

Dryoff Oven

The main purpose of any dryoff oven is to remove the residual water film left on the parts after the pretreatment process, this is done in preparation of the finishing application. The type of finishing application and the layout of the system can dictate the type of dryoff oven used as well as its placement in your system.

Most dryoff ovens are constructed as convection ovens, however, Infra Red ovens are gaining more popularity for this purpose. Depending on your specific application and needs, we will custom tailor a dryoff oven to suit you.

Cure Oven

A cure oven is designed to uniformly and completely cure your parts after the finishing application. Depending on your finishing application we can properly select a curing oven to fit your needs.

Just like with a dryoff oven, convection has been widely used throughout the industry but infra-red should not be overlooked. Each heating method has upsides and downsides, however, we are here to help you with those decisions.

CONVECTION DRYOFF AND CURE OVENS

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Convection ovens have been primarily used throughout the industry for their reliability and simple operation. With a convection oven, heated air is pushed through ductwork into the oven chamber. The individual parts are introduced into the oven chamber where they rise to the same temperature.

These parts must remain inside the oven chamber for a determined amount of time depending on the process. The length of process time, type and configuration of the parts along with the speed of the conveyor are determining factors in the size of oven.         

WHAT IS A PRE-GEL/BOOSTER OVEN AND WHERE IS IT USED?

A Pre-Gel, or Booster, oven is a small section of Infra-Red that is placed prior to a convection cure oven.

  • If your products have thick cross-sections, a Pre-Gel oven may be necessary for that extra boost before the convection oven.
  • If you want to increase your line speed but your current convection oven just isn’t long enough, a Pre-Gel oven will help.
  • If you are experiencing cross contamination from the natural air movement associated with a convection oven, a Pre-Gel oven will set the powder and alleviate the problem

WHAT TYPE OF INFRA-RED IS BEST FOR MY APPLICATION?

Catalytic infra-red heaters produce long to medium wave infra-red that is optimally absorbed by materials such as water, polyester, epoxy, ABS, styrene and HDPE. These wavelengths are 3.5 to 10 microns in length which coincides with the ideal range of 3 to 4 microns for absorption by organic materials. The key to rapid temperature increase is the fact that we are able to match the absorption rate of the coating with the infra-red energy.

Shorter wavelengths will heat up the emitter surfaces quicker and hotter, however, they miss this ideal absorption range and that translates into a less efficient method of heating up your product.  With the lower temperatures we can produce a more uniform heating of substrate with less temperature difference between the top and bottom surface. This improves product quality and consistency when it comes to curing powder/paint finishes or for molded plastic parts.

The fact that this type of infra-red energy is completely diffused and reflected is a large part of the reason why catalytic infra-red is the most efficient choice. It has also been proven that over 80% of the gas used in a catalytic infra-red emitter is turned into energy to be absorbed by your part.

For more information, please email or call us at 888.647.9929.

INFRA-RED DRYOFF AND CURE OVENS

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Sometimes a Convection oven is the right answer for your powder system but when it isn’t…..
Infra-Red is an excellent alternative.  More efficient and lower costing energy is causing the powder coating industry to seek more economical and effective curing solutions. Gas Catalytic Infra-Red ovens have proven to be a cleaner and more cost effective form of I-R heat.

Here are some more benefits to using an Infra-Red Oven:

  • Rapid Temperature Increase and Minimal Floor Space Required
    Typically the use of infra-red will cause the intended process to be sped up by a rate of 3:1. In other words, if the process time was 30 minutes it can often be reduced to 10 minutes. Because of this fact, the required floor space can be reduced as well.
  • Lower Operating Costs
    Infra-Red does not heat up the entire oven but only the part being processed. Due to this, less energy is used to produce the same results.
  • Precise Temperature and Process Control
    With an infra-red oven there is an expanded array of controllability. Part sensors to turn the oven on, separate zoning for different parts and repeatable menus with touch screen PLC’s are just a few of the options available. 
  • No Cross Contamination
    Infra-Red heat is transmitted in a very quiet and non-disturbing way. Once the curing process begins the coating is gelled, or liquefied, to the part and cannot be blown from one to the other.
  • Environmentally Friendly (No Noxious Fumes or Carbon Monoxide)
    Catalytic infra-red is produced by a flameless reaction. The bi-products of this flameless reaction are CO˛, water vapor and long to medium wave infra-red heat.

Myth – “I-R is line of sight. My part is pretty complex and an infra-red oven won’t work.”
Truth – Infra-Red energy is exactly what we get from the sun and even when we are not standing directly in front of the sun, we can still feel the effects. With increased technological advances, heater placement and oven design we are able to achieve a more even distribution of energy and that translates into better curing. Don’t just take my work for it, send us some of your parts and we’ll run them through our testing facility.

Myth – “Infra-Red is not a good method for drying off parts.”
Truth – Vulcan Catalytic Industrial Ovens produce long to medium wave infra-red energy. It is this particular intensity of infra-red that is easily absorbed by organic coatings such as powder and liquid as well as water. As a result, these coatings increase in temperature when exposed to catalytic heaters. 
Catalytic infra-red ovens are not suited for every dryoff application, however, they are an excellent alternative regarding space and energy concerns in certain areas.

Myth – “Heat is the same regardless of how it is applied, it takes the same amount of time to heat up and the same amount of time to cool down”
Truth – In any process whether you are crosslinking powder, curing paint or drying water the main concern is getting BTU’s into the coating.  Since infra-red energy is absorbed first by the organic coating that is present on the part (e.g. powder, paint, water, etc.) we do not need to heat up the part in order to begin the intended process. It is also because of this that, quite often, the substrate cools much quicker too.

For more information, please email or call us at 888.647.9929.