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Paragon KM-45T Knife Maker’s Heat Treating Furnace
Knives have been indispensable on long journeys and through difficult trials. Upon their return home, explorers and soldiers and medics and astronauts have numbered among their most priceless possessions their knives. When the owner touches his knife, memories awaken. Once again he hears the stories around the crackling campfire; he smells the pine needles in the wilderness. He remembers the lean-tos he fashioned with his knife; the kindling he made for a fire in a blowing snow-storm. His heart quickens its pace as he sees scenes he shared with the knife.
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. You can also choose between two temperature controllers. Do you need the robust 12-key Sentry, or the more economical 3-key Sentry Xpress? Click here for links to all the Paragon knifemaking furnaces.
Test exotic heat treating formulas
When you own a Paragon KM-45D furnace, you can live the knife making adventure to the fullest. You will actually witness the birth of your knives, for the soul of the blade is born in the crucible of the furnace.
There are many reasons to enjoy owning a furnace. For instance, you can test and refine the heat treating formula when you have a furnace. Each time you alter the heat treatment, find out how many times a new blade can cut hemp rope and 2x4s. Can the blade bend to 45¬? or even 90¬?? After you run the blade through the first tests, take it out into the real world on a camping trip and test it further.
The knife maker with a KM-series furnace can try exotic heat treating methods at his leisure. Does quenching in dry ice improve blade performance? What happens when 52100 ball bearing 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 only theory; it is no longer a mysterious, difficult step in making knives. You will master the heat treating process, and you will find out for yourself what heat treating formula works best for your knife designs. Testing and heat treating are at the heart of the knife making adventure. Here is where your confidence as a knife maker deepens.
Experiment with differential hardening, an ancient bladesmith technique. Try out the newest tool steels. Are they really as good as the tried and true 52100, D2 and A2?
A bond of trust between you and the knife owner
The knife maker’s credo is simple: to create a knife that represents the knife maker himself. For him, quality of work is a way of life. It is his passion. Anything less than one’s best is unthinkable.
The buyer of a custom knife appreciates fine detail. He or she marvels at the lines and 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. When the knife owner wipes a rag across such a knife, he is caressing as much as cleaning it. Part of this spirit of knife making 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. 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 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 sailor’s 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 it is 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
Even if most of your knives would fit inside the KM-14D, you may ultimately be happier with the KM-24D, the most popular size. Too much capacity may be better than too little. After all, it doesn’t hurt to heat shorter blades in the longer KM-24D; electrical consumption is minimal. Our newest KM-18D is mid-way in length between the KM-14D and KM-24D so you can buy just the right size for your needs.
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. This groove protects the element for long life and low maintenance. Elements are simple to replace because they’re exposed rather than embedded. You can thread new elements into place following clear instructions in the manual.
The temperature sensor (thermocouple) is sheathed for long life. The thermocouple wire is kept inside the control box 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 generously louvered. 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:
19
Phase:
1
Watts:
4560
Nema details:
6-20R
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 Digital 12-Key Non-Ceramic
Voltage:
240
Hertz:
60
Kiln Type:
Front Loading Square
Sides: 4
Inner Dimensions
Chamber Volume:
0.61 Cubic Ft. (17.27 Litres)
Chamber Width:
5.50” (140mm)
Chamber Depth:
45.00” (1143mm)
Chamber Height:
4.25” (108mm)
Outer Dimensions
Outer Size:
17.00”W x 58.00”D x 17.00”H
Ship Weight:
255.00 Lbs (115.67 Kg.)
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