Monday, October 29, 2018

Our New Line Heat Treating Ovens Designed and Built Specifically for Bladesmiths!!!

Are you a hobbyist that is ready to work like the Pro's? 
Are you a Pro who wants to take their work to the next level?
If so, then we have the perfect line of ovens and furnaces for you! How do we know this?

It's simple...we went to the Pro's and asked them what they would want in a perfect heat-treating oven! We took all the insight and created a revolutionary new line of heat-treat ovens and furnaces that throws out the old thinking and improves your entire heat-treat experience!

Jen-Ken Proudly Presents the Revolutionary Vertical Air Bath Furnace!

Our Vertical Air Bath outranks other heat-treating furnaces in 6 ways!  

1.     Vertical Blade Suspension – Prevents Warping and has unparalleled Stress-Free Heat Distribution!

2.     Top Loading – Providing the BEST Heat Recovery for Full Loads!

3.     Power Interrupt Switch – Assures Workshop Safety! Blades Can’t Touch Live Elements!

4.     Rolling Stand with Casters – Offers Space Flexibility and Portability! Keeps Your Workshop Safe!

5.     Large Capacity – Holds a Dozen Blades or More in a Single Load!

6.     Configurable Baffle Design – Allows Blades of All Shapes to Process Together At the Same Time!

Here’s how other kilns work… 
Blades are inserted into a standard front-loading horizontal knife oven for normalization, hardening, or tempering. As oven temperatures increase, blades can bend and warp because of the stress of leaning on their sides. Another cause of blade warping in traditional front-loading kilns is uneven heat distribution. A standard front-loader heats from the sides and the back, creating more heat at the back of the kiln. This causes the front door area to get cooler and cooler. The uneven heating causes the tip and body of the blade to be much hotter than the tang, resulting in more internal stress and warp potential, not to mention that the blades in the middle of kiln get the least heat from the coils. When the front door is opened, and the red-hot blade is removed from its horizontal position, it is carefully transferred to the vertical position on the way to be quenched. During this transition further bending can occur, causing the blade-smith to spend valuable time reversing the warp and straightening blade after blade. The traditional long kiln design requires for deep tables or stands, taking up a ton of room in your workshop. With limited bench space, you may be forced to reach around a screaming hot kiln to reach tools, creating a potentially dangerous work-space.

Here’s why ours works so well… 
We’ve addressed the issue of uneven heating by designing the exciting new Vertical Air Bath furnace series. Our Vertical Air Bath furnaces deliver the best heat-treat possible because your blades are suspended vertically inside the chamber, allowing the blade to heat from all sides (360° heat), delivering completely uniform heat soaking at the desired temperature. The Vertical Air Bath is a refractory brick furnace with a specially designed baffle inside. Heat is absorbed into the brick of the kiln/furnace and is contained below the baffle when the lid opens. A unique cool touch handle extends out from the side and is reversible to either side of the kiln. When standing to the side of the kiln, the lid can be lifted without a blast of heat hitting the user. The blade can then be removed with tongs, and the lid is lowered. This quick motion allows for minimal heat loss and ease of use. The Vertical Air Bath chamber is heated from below the baffle and has another set of coils in the top section for quicker recovery as each piece is removed. The included power-interrupt lid switch de-energizes the oven, as you reach in to remove a blade. The Vertical Air Bath then begins heating again when the lid is closed. The kiln is designed to regain the full holding temperature, upon the users return from the quench. Blades never touch the kiln or each other, reducing the chance of heat sinks, cold spots, and warping. Spines remain straight because your knives are removed vertically, and then lowered vertically into the oil quench. This vertical suspension from the beginning of the process to the end allows for uniform absorption of heat and unimpeded movement while releasing internal stress.

Large capacity… The Vertical Air Bath chamber holds up to 12 blades of varying shapes comfortably.

Blades can be suspended several ways. We recommend a pin through the tang, a spring clasped to the tang, or you can simply turn the tang sideways between the movable ceramic rods, if the tang shape permits. Foil wrapped blades can be suspended by passing the support pin through the foil sheet or via the spring clasp method. This allows the vertical suspension format to be used with every technique. The process has zero interference, leaving your blades stress free and straight.

Here’s why you’ll love it… The Vertical Air Bath is a smarter, safer, and more portable design, made to optimize your efforts, and make your workshop safer. The furnace comes with a rolling stand which allows you to move the Air Bath out of the way when it’s not in use. Think of the bench space you’ll save! You’ll save time and effort due to the reduction of warps and waves in your knives. The power-interrupt lid switch prevents your blades from touching live elements, keeping you safer in the workshop. The Vertical Air Bath comes equipped with a standard 3-button controller that can loaded with the most popular normalizing, tempering, and heat treatment schedules. You can choose to upgrade to a 12-button controller for ease of programming or choose the popular TAP smart touch screen controller. All of our kilns, ovens, and furnaces come equipped with standard mechanical relays, or you can choose to upgrade to solid state technology.
For more information and pricing go to
Join me next time when I discuss the new Fiber Front Loader Kilns for heat-treating!
Happy Firing,
Cricket Chirps

Tuesday, August 14, 2018

Solid State Relays – Why they are the best choice for your kiln!

Relays are switches that turn the heating elements on and off in your kiln. Solid state relays deliver precision power control and output thereby extending the life of your kilns heating elements. They do this by only allowing the heating elements to switch on and off when the AC voltage is at 0V. Because they contain no moving parts solid state relays can turn the heating elements on and off up to 60 times per second, much faster than mechanical relays, and with no moving parts there is nothing to wear out and replace. This results in longer element life and enhanced performance through reliable and precise temperature control. They are also completely silent, no annoying clicking noise constantly going off when you are teaching or working in your studio!

If you live in a hot climate or are working in an non-air conditioned area such as a garage or outside you will need a heat sink to keep it cool, a heat sink is device for absorbing or dissipating excess heat; for example a small desk fan blowing into the relay box. These tiny 4-inch desk fans work great for keeping relays cool while still allowing your kiln to reach proper temperature! If you fire often, then solid state relays really are the best choice for you and by maintaining the proper environmental conditions they can last the lifetime of your kiln!

Solid State Relays are available on most of the larger kilns. Contact us today to see if we can add one to your kiln order!

Join me next time when I discuss our new line kilns for heat-treating knives!

Happy Firing, 
Cricket Chirps