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by Paragon

Paragon Knife Oven - Double Barrel KM18

SKU KM18-DB-BLUE
Save $1,340.00
Original Price $4,895.00
Current Price $3,555.00
Talk to an Expert Secure Checkout Flexible Returns No Sales Tax Outside GA
Color: Blue

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Not sure this is the right fit? Power, size, firing needs: talk it through with a real person before you order. Call or text (470) 264-3563

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Free Freight Delivery Included
✓ No sales tax outside GA ✓ Liftgate included free ✓ Authorized dealer
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Made to Order: Smaller models typically ship in 2–4 weeks. Larger kilns may take up to 12 weeks. We confirm your estimate after ordering.
  1. 1 We submit your kiln order for production with the manufacturer.
  2. 2 We confirm the current estimated lead time and keep you updated.
  3. 3 Your kiln is built to your specifications and prepared for freight shipment.
  4. 4 We send tracking and delivery instructions once your kiln ships.
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Paragon · Heat Treating Oven · Front-Loading Double Barrel Paragon Knife Oven – Double Barrel KM18 KM18 · 240V · 18" depth · Double barrel capacity · 2350°F max The double-barrel front-loading design gives you one chamber that is wider and taller than the standard KM18, so you can heat treat larger batches of blades in a single cycle. The 18-inch chamber depth accommodates longer blade profiles including swords, machetes, and large hunting knives, while the 2350°F maximum firing temperature provides the high heat necessary for proper hardening and tempering of carbon steel and high-alloy tool steels commonly used in professional knifemaking. Precision-engineered by Paragon in the USA for consistent, repeatable heat treating results in high-volume production environments.
Maximum temperature2350°F (Cone 10)
Chamber depth18 inches
DesignDouble barrel front-loading
Power240V
Optional accessories
Inert gas atmosphere system Argon or nitrogen gas delivery system connects to the optional gas inlet for controlled atmosphere heat treating to prevent oxidation and decarburization
Additional blade racks Custom-sized stainless steel racks maximize chamber capacity and organize multiple blades during heat treating cycles
Type K thermocouple replacement High-temperature backup thermocouple rated to 2350°F ensures continuous operation and accurate temperature monitoring
Quench tank system Separate quenching vessel for oil or water quenching immediately after hardening cycle for optimal blade hardness
Emergency replacement parts kit Includes backup heating elements, thermocouple, door gaskets, and relays to minimize production downtime
Rolling stand with casters Heavy-duty welded steel stand with locking casters allows mobility in workshop while providing stable support during operation
Controller upgrade
Genesis Touchscreen — Bartlett InstrumentsRecommended
Upgrade to the Genesis touchscreen controller for advanced programming capabilities including multi-step heat treating profiles, soak times, and precise ramp rates critical for complex metallurgy work. The full-color 7-inch interface provides real-time temperature graphing, cycle documentation, and USB data export for quality control records.
  • 7-inch full-color touchscreen with intuitive programming interface
  • Store up to 250 custom heat treating profiles for different steel types and blade geometries
  • Real-time temperature curve display shows actual vs. target temperature throughout entire cycle
  • Multi-segment programming with independent ramp rates, soak times, and hold temperatures
  • USB data export for production documentation and quality assurance records
  • Advanced alarm system alerts for temperature deviations, element failure, and cycle completion
Common questions
What types of steel can I heat treat in the KM18?
The 2350°F maximum temperature handles all common blade steels including 1095, 5160, 52100, O1, A2, D2, and high-alloy stainless steels like 440C and AEB-L. The temperature range covers both hardening (typically 1450-2100°F depending on alloy) and tempering cycles (300-1000°F). For high-speed steels and some exotic alloys requiring temperatures above 2200°F, verify your specific steel's austenitizing temperature falls within the oven's range. The optional gas inlet allows connection of argon or nitrogen atmosphere systems to prevent oxidation during hardening of reactive steels.
Do I need to add a gas atmosphere system, or can I heat treat in air?
Many carbon steels can be successfully heat treated in air atmosphere for forged blades that will be ground post-hardening, though some surface scaling and decarburization will occur. For stock removal blades with finished grinds, stainless steels, or when minimal scale is critical, connecting an inert gas system (argon or nitrogen) to the optional gas inlet creates a protective atmosphere that prevents oxidation and decarburization. The gas inlet and flowmeter are an optional upgrade on the KM18; the external gas supply and regulators are purchased separately based on your quality requirements and production volume.
What controller comes standard, and can I program custom heat treating cycles?
The KM18 includes a Sentinel Touch Xpress touchscreen controller with ramp-hold-cool programming suitable for standard hardening and tempering cycles. You can set target temperatures, ramp rates, and soak times for typical two-step heat treating (austenitizing followed by tempering). For more complex metallurgy requiring multi-step thermal cycles, precise ramp control, or data logging for quality documentation, the Genesis touchscreen upgrade provides advanced programming with up to 250 stored profiles and USB export capability.
How does the double barrel design compare to single chamber knife ovens?
The Double Barrel keeps the 18-inch depth of the standard KM18 but has one wider, taller chamber, so you can heat treat more blades per cycle or fit wider pieces. It is still a single chamber with one single-zone controller, so all blades in a load run the same program. If you want to harden and temper at the same time, you would need a second oven.
Is this oven backed by a manufacturer warranty when purchased through Peach State Pottery?
Yes. The KM18 includes Paragon's one-year limited warranty covering defects in materials and workmanship when purchased through authorized dealers like Peach State Pottery. You must register your oven within 30 days of delivery to activate warranty coverage. Purchasing through unauthorized resellers or used markets typically voids manufacturer warranty. Peach State Pottery can assist with warranty registration and any service needs during your warranty period.
Not sure if the KM18 double barrel is the right heat treating oven for your production needs? Our kiln specialists can discuss your blade lengths, production volume, steel types, and atmosphere requirements to recommend the best Paragon knife oven configuration.
Talk to an expert →
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About this kiln
Best for: Glass artists, ceramic hobbyists, and specialty firing applications where precise temperature control and compact American-made construction matter most.
🔨 Lead time
2–12 weeks
Smaller models typically ship in 2–4 weeks. Larger kilns may take up to 12 weeks. We confirm your estimate after ordering.
✓ Warranty
Manufacturer warranty
Full coverage included. We are here if anything goes wrong after your order.
Why buy from Peach State Pottery?
Authorized Paragon Dealer
No sales tax outside Georgia
Free shipping included
Real support before & after order
Military discount for veterans
We are here if anything goes wrong
Call or text us:✆ (470) 264-3563
Paragon production slots fill fast
Placing your order now locks in your position in the build queue and secures today's pricing. Lead times can shift during high-demand periods.