Evenheat Kiln - KH 418

120V North American Operation

For North American heat treaters who can't get access to 240V, the KH Series is made just for you. KH Series heat treat ovens are designed to operate from the North American standard household voltage of 120V.
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The KH Series models are very capable of reaching temperature, however they will take about twice as long to get there than a comparable 240V model. Generally speaking they will reach 1650°F in about 1-1/2 hours.

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 KH'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 KH models incorporate a 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!

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 KH'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

The TAP II and Rampmaster temperature controls are fitted to a 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.
 
The swing view pairs well with touchscreen controls like the TAP II as viewing angle can be perfectly aligned.

Firebrick Construction

Like all Evenhesat heat treat ovens, KH 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 the optional Loud Alarm. It reaches 80db of alarm sound to never miss another quench.

2200°F Maximum Temperature

The maximum usable temperature for the KH models is 2200°F (1204°C). This maximum is well within the range for the vast majority of steels used by knife makers and machine shops. The KH 418 model features a side-element-only design borrowed from the LB Series models.

Maximum temperature is limited by the heating element wire used. Evenheat uses a Sandvik Nickel-Chrome alloy wire for all KH model heating elements. This alloy has proven to last, it tends to stay in place and generally works satisfactory when used at temps below 2200°F.

Maintenance Parts Tag

To assist you in replacing worn items Evenheat has included a maintenance parts tag indicating the proper Evenheat part numbers for anticipated maintenance items.

Strong Stand and Tool Rest

Stands are strong and include a tool rest.

Power Interrupt Switch Equipped

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 tear apart and open any welded or stuck contacts.

Options:

TAP II or Rampmaster Controls Option

KH models are available with your choice of the TAP II or Rampmaster temperature controllers. Check out the Controls tab for detailed descriptions of both controls.

Quiet Drive Solid State Relay Option

All KH models are available with a Quiet Drive Solid State Relay option. 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.

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! Click Here!