Paragon Xpress-KM-18

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Paragon Xpress-KM-18 Knife Maker’s Heat Treating Furnace
Great knives are more than steel and ornament. They contain a spirit that makes them feel alive to the touch. As the knife ages, its spirit remains as vibrant as the day the maker gave the knife to the world. The spirit in their knives lives on long after the master craftsmen who made them.
In 1986 we introduced the KM-14D, our first knifemaking kiln. We are proud to announce the Xpress-KM-18, with an 18” long interior. It should be the perfect size furnace for those who need one that is between the 14 1/2” long KM-14D and the 24” long KM-24D. In addition, the Xpress-KM-18 features the economical 3-key Sentry Xpress temperature controller instead of the full 12-key Sentry. Save on the price of the furnace and still get the same digital accuracy knife makers have come to expect from Paragon. Click here for links to all the Paragon knifemaking furnaces.
Test exotic heat treating formulas
When you own a Paragon Xpress-KM-18 furnace, you can live the knife making adventure to the fullest. You will actually witness the birth of your knives in the bright red heat of the furnace. The soul is born in the furnace, because the heat treating brings out the highest qualities of the steel.
Many knifemakers enjoy owning a furnace, because they can revel in testing. They put blades through tests more severe than any knife owner would dare. Yes, they test for Rockwell hardness, but they don’t stop there. The serious knifemaker tests the knife against hemp rope and 2x4s. They bend the blade to 45° or even 90°. Then they straighten the blade, slap on a handle and test it in the real world.
The knife maker with an Xpress-KM-series furnace can try exotic heat treating methods at his leisure. Does quenching in dry ice improve blade performance? What happens when 52100 steel is triple-quenched with a one-day wait between each quench? After this treatment, will a 52100 blade bend to 90° without chipping?
With a Paragon furnace in your shop, all questions about heat treating formulas are settled. Heat treating is no longer theory. You find out for yourself what works. Testing and heat treating is at the heart of the knife making adventure. Here is where your confidence as a knife maker takes root. Through heat treating, you can master a tool steel and make it your own.
Experiment with differential hardening, an ancient bladesmith technique. Try out the newest tool steels. Are they really as good as the tried and true D2 and A2?
Choose a Side-Swing Door or a Drop Door
You can now order a Paragon knifemaking furnace with either a drop door or a side-swing door. (The photo above shows the traditional drop door.) The drop door is hinged at the bottom; the side-swing door is hinged at the side. The price of the furnace is the same with either door style. Both doors also include the door safety switch.
The drop door opens downward with one-handed operation. A counter-weight handle holds the door securely closed. A chain holds the drop door open.
The door, whether drop or side-swing, is mounted on a heavy-duty hinge shaft for smooth opening. Because of the rigid case and heavy hinge, the door is sturdy enough for years of faithful service.
The door micro safety switch shuts off the power to the elements when the door is opened, yet the temperature controller remains powered. The safety switch is standard on Paragon KM furnaces.
New higher furnace temperatures
Paragon’s knifemaking furnaces are now rated to 2350 degrees F, so you can heat treat as hot as you need to.
A bond of trust between you and the knife owner
The knifemaker’s credo is simple: to create a knife that represents the knife maker himself. Quality of work is not just a fad for him. It is a passion. Anything less than one’s best is unthinkable.
The buyer of a custom knife appreciates fine detail. He or she marvels at the glistening curves the maker coaxed from the steel with such patience. There is a bond of trust between the owner of a fine knife and its maker. This is why the knife maker sleeps better when he controls every step in creating a knife.
The knife maker derives joy from working with his hands. He makes knives that are not merely prized, but treasured, sometimes for generations. When the knife owner sharpens it, he is caressing as much as cleaning it. Part of this spirit of knifemaking is lost when you send the blade out for heat treating and await its return.
Every time you, the maker, release one of your knives to the world, your reputation goes with it. Your reputation is engraved right into the blade for all the world to see. This is why makers feel compelled to control every step in the blade’s journey from initial design through final polishing.
No more waiting for commercial heat treating
A Paragon Xpress-KM-series furnace sets the knife maker free. No more wrapping blades and shipping them to your heat treater. No more waiting until you have a dozen blades to get the best price on heat treating. No more turning away orders for last-minute gifts.
While your furnace is hardening and tempering blades, you can busy yourself grinding more knives or fitting handles. After you’ve used your Paragon furnace awhile, you will wonder how you ever got along without it. When asked to make a knife on short notice—whether for a Marine Corps awards presentation, a celebration or retirement party, or an archaeologist on his way to Africa—you will be ready. When a custom knife is needed as a going away gift, and the recipient is leaving in three days, you will be ready. Your KM-series furnace might even pay for itself on rush orders you would otherwise have missed.
Own a furnace and you alone decide when you will complete a knife. If you stay up one Friday grinding a knife, you can heat treat it that evening and deliver it Saturday morning. Just in time for a grateful wife to present to her husband on his birthday.
Finishing a knife whenever you want will excite you. You will find yourself working into the night to complete a new design. When you send the blade out for heat treating, the excitement of making will be forgotten. By the time the blade returns, you hardly remember it.
A full range of Paragon furnace sizes
The KM-series knifemaking furnaces come in five interior sizes:
• KM-14D and Xpress-KM-14: 14 _” long, 5 _” wide, and 4 _” high
• KM-18D and Xpress-KM-18: 18” long, 5 _” wide, and 4 _” high
• KM-24D and Xpress-KM-24: 24” long, 5 _” wide, and 4 _” high
• KM-36D and Xpress-KM-36: 36” long, 5 _” wide, and 4 _” high
• KM-45D: 45” long, 5 _” wide, and 4 _” high
Most knives can fit inside the KM-14D. Our most popular size is the KM-24D. The KM-18D or Xpress-KM-18 is the medium-length furnace that may be all the furnace you will ever need. On the other hand, it may be wise to choose a longer furnace than you currently need, because you won’t be limited by furnace size. After all, it doesn’t hurt to heat shorter blades in a longer furnace such as the KM-24D; electrical consumption is minimal.
Your choice of two temperature controllers
The Sentry 12-key controller is faster to program and has more features than the Sentry Xpress 3-key controller. However, the Sentry Xpress is more economically priced. Now you can choose the controller that fits your budget.
Models with the 3-key Sentry Xpress controller: Xpress-KM-14, Xpress-KM-18, Xpress-KM-24, Xpress-KM-36.
Models with the 12-key Sentry controller: KM-14D, KM-18D, KM-24D, KM-36D, KM-45D.
Solid furnace construction
The furnace is insulated with refractory firebrick. The elements are mounted in dropped, recessed grooves machined into the firebrick. Paragon invented this type of groove in 1952. The groove protects the element for long life and low maintenance, qualities that have made Paragon furnaces legendary. Elements are simple to replace because they’re exposed rather than embedded. You can thread new elements into the grooves following clear instructions in the manual.
The temperature sensor (thermocouple) is sheathed for long life. The thermocouple wire is kept inside the control box and out of the way for protection from the harsh environment of the typical bladesmith shop.
The firing chamber is protected by a rigid steel case painted in high temperature blue. A built-in stand lifts the firing chamber safely off your worktable, so no extra stand is needed.
We use high temperature wire in the switch box for long life. A heat shield, mounted between the switch box and furnace, helps keep the switch box components cool even during extended operation. To further dissipate heat, the switch box is extra large and slotted. Each furnace comes with a cord and plug for immediate installation, and a one year warranty.
Detailed heat treating instructions
Your furnace includes a wiring diagram, programming instructions, and heat treating manual. The manual gives you basic heat treating instructions for D2, 440C, ATS 34 and 154 CM. The manual is written in plain English for the beginner.
Made in America
45% of Paragon’s factory work force has been here over 10 years; 20% have worked here over 20 years. All paragon furnaces are made in America. We are proud to support the American worker.
Optional Gas Injection Flow Meter
During heat treating, scale forms on the surface of the steel. One way to eliminate most scaling is to wrap the steel in stainless steel foil. Another way is to install the gas injection flow meter on your furnace. It is available as either an add-on kit, or you can order the furnace with the meter installed.
The meter regulates the flow of an inert gas, such as argon, inside the furnace. The gas displaces the oxygen to prevent most scaling.
Please remember that results with the flow meter vary depending on the type of inert gas you use and your level of experience. For more details, click on the link in the Options section below.
The knifemaking Kit
In addition to the furnace, you will need a Knifemaking Kit, which separates the blades and holds them parallel inside the furnace. Please click the link below in the Options section.

Max Temperature:
2350F (1287C)

Amps:
17

Phase:
1

Watts:
2000

Nema details:
5-20R

Breaker Size:
20

Circuit Copper Wire Size:
12

TUV Tested to CSA and UL Standard 499:
No

CE:
No

IMPORTANT: Some areas such as Canada and Europe require a lid or door safety switch on kilns.

Control Type:
Sentry Xpress 4.20 Digital 3-Key

Voltage:
120

Hertz:
60


Kiln Type:
Front Loading Square

Sides: 4

Inner Dimensions

Chamber Volume:
0.19 Cubic Ft. (5.38 Litres)

Chamber Width:
5.50” (140mm)

Chamber Depth:
18.00” (457mm)

Chamber Height:
4.25” (108mm)

Outer Dimensions

Outer Size:
17.00”W x 31.00”D x 17.00”H

Ship Weight:
130.00 Lbs (58.97 Kg.)