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The Evenheat KO 22.5 Series of heat treat ovens are designed with a thicker firebrick structure and a maximum temperature of 2350°F. This extra insulation and headroom offer more speed and more power per cubic foot for high mass loads.
The KO Series heat treat ovens feature side opening doors that don't subject you to the added heat of a drop-down door. They also feature a forward-facing door latch that remains cool and is within easy grasp. Now standard with quiet drive solid state relays for lasting performance!
| Model: | Evenheat KO 22.5 |
| Inside Dim: | 9" (width) x 5.5" (height) x 22.5" (depth) |
| Outside Dim: | 20" (width) x 19.5" (height) x 30" (depth) |
| Max Temp: | 2350° F |
| Voltage: | 240 volts |
| Amperage: | 15 amps |
| Watts: | 3,600 watts |
| Receptacle: | 6-20R |
| Ship Wt: | 114# (freight) |
Side-Only Element Design
The KO Series design was inspired, in part, by culinary bladesmiths who generally make long, thin blades. These bladesmiths needed to use the entire length of the chamber without overheating their blades at the back wall. We took a fresh look, got rid of the rear wall heating element, and nailed it.
The front to back temperature distribution in the KO is incredibly even. Positioning in the chamber has no effect and the entire length can be used. The KO, with it's side-only element design, is the new standard!
Side Opening Door
Heat treating requires the removing of some very hot material from the chamber in order to quench. Everything in the chamber is hot, which includes the door. The doors on the KO's swing out and to the side. This puts the super-heated door well away from you as you concentrate on the work at hand.
Cool Touch Handle
The handle/latch on our swing out door is conveniently located at the front of the door, not hidden along the side. This spring loaded, phenolic handle is cool to the touch, is one-handed in design and serves as the
door latch as well.
Relay Access Port
All KO models incorporate our Relay Access Port for simple, no-panel-off relay replacement. Simply
remove the access plate to gain access to the relay. There's no need to remove the control panel and dig into the internal wiring. It's absolutely simple and effective and all it takes is a screwdriver!
It's a given that mechanical relays will fail at some point. This relay access port really comes in handy when they do.
Door Shield
The KO's feature a door shield to provide protection against firebrick damage as well as to reduce the temperature seen at the door and door handle.
Swing View Equipped
Our TAP II and Rampmaster temperature controls are fitted to our Swing View Adjustable Enclosure. The swing view is a pivoting, swing-up enclosure that allows you to rotate the control to a comfortable viewing and programming angle. Once you're done, lay it back down to see it from across your shop. It's that simple.
The swing view pairs well with touchscreen controls like the TAP II as viewing angle can be perfectly aligned. You'll love it.
Firebrick Construction
Like all our heat treat ovens, LB models are built completely of firebrick. Firebrick has the desired characteristic of storing heat and then releasing it slowly and gently during the soak/hold portion of the
process. It's this particular quality that serves the heat treat process so well.
Loud Alarm Output Jack
A Loud Alarm output jack is included to connect our optional Loud Alarm. Enjoy 80db of irritating alarm bliss and never miss another quench.
2350°F Maximum Temperature
The maximum usable temperature for the KO models is 2350°F (1288°C). This maximum is well within the range for the vast majority of steels used by knife makers and machine shops.
We use a Sandvik Iron based alloy wire for all KO model heating elements. This alloy has proven to last, it tends to stay put and generally plays very nice when used at temps below 2350°F.
Maintenance Parts Tag
To assist you in replacing worn items we have included a maintenance parts tag indicating the proper Evenheat part numbers for anticipated maintenance items. Wish we had this decades ago.
Strong Stand and Tool Rest
Stands are strong and include a tool rest. Cool!
Now Standard With Quiet Drive Solid State Relays
All Heat Treating Ovens, Knife Ovens, and Glass Kilns (except for Studio Pro STP) now come equipped with Quiet Drive Solid State Relays. The Quiet Drive Solid State Relay System offers tight temperature control, high reliability and increased heating element life. The Quiet Drive is arguably the best designed and best performing solid state system on the market.
OPTIONS:
TAP II or Rampmaster Controls Option
KO models are available with your choice of the TAP II or Rampmaster temperature controllers. Check out our Controls tab for detailed descriptions of both controls.
Power Interrupt Switch Option
The Power Interrupt Switch removes power from all heating elements as the door is opened and re-applies power as the door is closed. The switch used for this feature is a true safety switch and is designed specifically for safety applications. This safety switch will literally tear apart and open any welded or stuck contacts - true safety!
Why Upgrade from Mechanical Relays to Solid-State Relays?
Mechanical Relays, which come standard on most kilns have internal moving parts which over time wear out and need to be replaced. Kiln manufacturers recommend you replace your mechanical relays approximately every 2 years. Solid-state relays have no moving parts and last far longer than standard mechanical relays and offer far better temperature control during hold times. Since solid-state relays also have no moving parts to wear out, they NEVER need to be replaced. You will notice that solid-state relays are silent. The only sound you will hear is just the reassuring hum of the heating elements. So, this factory upgrade saves you potential down time from having to wait for new relays to arrive, potential over-fires from relays sticking in the closed position, potential aggravation from having to learn how to remove and replace the mechanical relays yourself. We think this upgrade is well worth the cost and will save you time and aggravation over the life of your kiln.
Check out the accessories you can use with this kiln!
Extremely pleased with the product and service. Well worth the wait!
Hey Daniel,
It's great to hear you're experience has been so great! We wish you all the best with your Evenheat KO 22.5! Thanks for sharing your feedback! If you have more details or suggestions, feel free to reach out at customerservice@kilnfrog.com or via phone 361-596-3764.
This kiln is a masterfully designed and crafted piece of equipment. As a knife maker utilizing mostly CPM stainless steels that require high austenitizing temperatures, the KO series is the perfect tool for the job with its 2400f ability and super fast ramping. The smart touch controller is very user friendly yet capable of being programmed for complex cycles that cover thermocycling, annealing, tempering, and of course austenitizing with ease. 5 star product, highly recommended!
Hey there,
Thank you so much for this very detailed and positive review of your new Evenheat KO 22.5! We appreciate your input. If you have more details or suggestions, feel free to reach out at customerservice@kilnfrog.com or via phone 361-596-3764.
Used kiln once very impressed, heats up very fast. Will use this winter a lot more.
Thanks for your feedback! Your insights are valuable. Share more thoughts or suggestions via email at customerservice@kilnfrog.com or call 361-596-3764. Your input enhances our service. Looking forward to hearing from you!
It arrived packaged and protected very well; however, i havent had a chance to use it yet. I plan to have an electrician come out and put in a proper receptacle to fit the plug.
Thanks for your review! We value your input. If you have more to share, contact us at customerservice@kilnfrog.com or via phone 361-596-3764.
It was good, have not used the oven yet but the ease of ordering and delivery were nice, the wait for the unit was longer than expected but I hear it is a good product and good things come to those who wait. There was no damage in shipping and the unit is very craftsman-like built.
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