Hot Shot Knife Maker's Kiln HS-24K
Save $1,385.00
Original Price
$4,337.00
Current Price
$2,952.00
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In Stock: In stock and ready to ship. Most orders are delivered within 5–7 business days.
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- 1 We submit your kiln order for production with the manufacturer.
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Hot Shot · Heat Treating Oven · Front-Loading Knife Maker's Kiln
Hot Shot Knife Maker's Kiln HS-24K
The HS-24K is a precision heat treating oven engineered specifically for knife makers and bladesmiths working with high-carbon and tool steels. This front-loading clamshell design delivers accurate temperature control up to 2200°F with a solid state relay for reliable thermal cycling during heat treatment, quenching, and tempering operations. The 24-inch deep chamber accommodates long blades and batch processing, with optional atmosphere capability for controlled gas environments.
Maximum Temperature2200°F
Chamber Size24″ D × 21″ W × 7″ H
Power Requirement240V / 40A Breaker
DesignClamshell Front-Loading
What’s included
Solid State Relay
Built-in SSR provides precise temperature control and longer element life compared to mechanical contactors
Clamshell Door Design
Front-loading hinged door allows easy blade loading and rapid quenching access during heat treatment
Digital Controller
Programmable temperature controller with ramp/hold capability for precise heat treating cycles
Type K Thermocouple
Industrial-grade thermocouple for accurate temperature measurement throughout the firing range
Heavy-Duty Brick Construction
Insulating firebrick walls retain heat efficiently and withstand repeated thermal cycling
Steel Cabinet
Durable outer cabinet protects internal components and provides structural support
Technical specifications
ModelHS-24K
Interior Dimensions24″ D × 21″ W × 7″ H
Chamber Volume2.04 cubic feet
Maximum Temperature2200°F
Voltage240V single phase
Amperage32 amps
Wattage7680 watts
Recommended Breaker40 amp
Element TypeKanthal A-1 wire elements
Control SystemSolid state relay with digital controller
Door ConfigurationFront-loading clamshell
Shipping WeightApproximately 350 lbs
Optional accessories
Atmosphere Gas Inlet Kit
Allows introduction of inert or reactive gases for controlled atmosphere heat treating to prevent scaling and decarburization
Type S Thermocouple Upgrade
Higher accuracy thermocouple for precision work at maximum temperatures; extends thermocouple life
Stainless Steel Shelving
Custom-sized stainless steel racks for batch processing multiple blades simultaneously
Emergency Parts Kit
Spare thermocouple, heating elements, and solid state relay for minimal downtime during production schedules
Power Interrupt Safety System
Automatically shuts down the kiln if power is interrupted, preventing unsafe restart conditions
Extended Warranty Coverage
Additional warranty protection beyond the standard one-year term for commercial operations
Controller upgrade
Genesis Touchscreen — Bartlett InstrumentsRecommended
The Genesis touchscreen controller provides advanced programming capabilities ideal for complex heat treating protocols with precise ramp rates, soak times, and multi-step tempering cycles. Color touchscreen interface simplifies programming custom schedules for different steel types.
- Full-color 4.3″ touchscreen with intuitive menu navigation
- Store up to 20 custom heat treating programs for different steel alloys
- Advanced ramp/hold programming with 8 segments per program
- Built-in delay start function for scheduled firing operations
- Thermocouple offset adjustment for calibration verification
- USB data logging capability for quality control documentation
Common questions
What steel types can I heat treat in the HS-24K?
The HS-24K reaches 2200°F, which covers all common knife steels including 1095, 5160, O1, W2, 52100, and most stainless steels like 440C and AEB-L. For higher-temp stainless steels like S30V or S35VN (requiring 1900-2100°F), this kiln provides adequate headroom. High-speed steels requiring temperatures above 2200°F are outside this oven's range. The optional atmosphere gas inlet allows you to introduce protective gases during austenitizing to prevent surface decarburization on high-carbon steels.
Can I add a controlled atmosphere to this oven?
Yes. The HS-24K is designed to accept the optional atmosphere gas inlet kit, which allows you to introduce nitrogen, argon, or other gases during heat treating. This prevents scaling and decarburization on blade surfaces, reducing post-heat-treat grinding and preserving edge geometry. The clamshell door design maintains adequate sealing for atmosphere retention during the austenitizing soak, though this is not a vacuum-tight sealed retort system.
What are the advantages of the solid state relay over a standard contactor?
The built-in solid state relay (SSR) switches power silently without mechanical wear, providing tighter temperature control within ±5°F compared to ±15-20°F with mechanical contactors. SSRs eliminate the clicking sound and electrical arcing of contactors, extending element life by reducing thermal shock from rapid on-off cycling. For precision heat treating where austenitizing temperature accuracy affects final hardness, the SSR provides meaningfully better results, which is why Hot Shot includes it as standard equipment.
Do I need a licensed electrician to install the HS-24K?
Yes, professional installation is required. This oven draws 32 amps at 240V and requires a dedicated 40-amp circuit with appropriately sized wire (typically 8 AWG copper). Most jurisdictions require permit and inspection for this electrical work. Your electrician will need to install a NEMA 6-50 or hardwired connection per local code. Improper installation voids your warranty and creates serious fire and shock hazards. Budget $300-800 for professional installation depending on distance from your electrical panel.
Why should I purchase from an authorized dealer like Peach State Pottery?
Hot Shot's one-year warranty is only valid when purchased through authorized dealers and registered within 30 days of delivery. Unauthorized sellers cannot provide valid warranty coverage, leaving you responsible for all repair costs. As an authorized dealer, Peach State Pottery provides proper documentation for warranty registration, technical support for installation questions, and access to genuine Hot Shot replacement parts. We also understand kiln electrical requirements and can guide you through the electrician briefing process.
Not sure if the HS-24K is the right heat treating oven for your shop?
Our team can help you evaluate chamber size, atmosphere requirements, and electrical compatibility for your blade production needs.
Talk to an expert →