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PMT21

Heat Treating Industrial

Paragon PMT-21 Heat Treating Furnace

Machine shops save time with a furnace at their disposal in their own shop. You will no longer send a die out for heat treating, wait for its return and then send it out again for additional heat treating.

Solid construction

The door swings open with one-handed operation. The PMT-21 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 firing chamber is protected by a 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. The door is mounted with a heavy-duty hinge for smooth opening. A micro-switch shuts off the power to the elements when the door is opened. 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.

Complete 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.

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. An easier 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.

Thermocouple with “special limit” wire

The thermocouple senses temperature inside the kiln. It is the small rod that extends into the firing chamber. The ¼” wide Type-K, 14-gauge, exposed-tip thermocouple is made with special-limit wire for superior accuracy. The exposed tip gives the controller a fast response time for even temperatures during holds. The thermocouple is made in America to our exacting standards.

Designed for production

Paragon’s warranty is not affected by frequency of use. Fire your new kiln every day if you want, even in commercial settings. That will have no effect on the warranty period.

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Product Videos

Watch & Listen to P005 The Paragon Kiln Factory Firebrick Room (6 min 47 sec)

Watch & Listen to D009 (Spanish) Demostracion de Como Incrementar y Mantener la Temperatura Con Un Control Sentry de 12 Teclas: Serie Operacion de Hornos Paragon (5 min 10 sec)

Watch & Listen to P001 The Paragon Kiln Factory Sheetmetal Department (3 min 40 sec)

Watch & Listen to P004 The Paragon Kiln Factory Square Kiln Assembly Line (4 min 30 sec)

Watch & Listen to P008 The Paragon Kiln Factory Inspection Station (1 min 50 sec)

Specifications

Max. Temperature	2350F 1287C
Amps	40
Phase	1
Watts	9600
Nema	6-50R
TUV tested to CSA and UL Standard 499	N
CE	N
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
Nema Details

Disclaimer: The specifications above assume that the kiln will be plugged into a dedicated circuit. Local electric codes supersede our recommendations. The pricing and electrical specifications for the above products reflect their design for use in the United States. The International versions of most models will have variations in electrical specifications and price due to consumer safety requirements or electrical regulations.

Kiln Type

Front Loading Square

Sides

Understanding Chamber Measurements

Chamber Volume

3.30 CU.FT.
93.45 litres

Chamber Width

21.00 IN
533 mm

Chamber Depth

21.00 IN
533 mm

Chamber Height

13.00 IN
330 mm

The Outer Size of the Kiln and the Shipping Size: Width = Left to Right; Depth = Front to Back; Height = Top to Bottom

Outer Size

40.00W x 35.00D x 28.00H Inches
1016W x 889D x 711H mm

Ship Size

44.00W x 39.00D x 32.00H Inches
1118W x 991D x 813H mm

Ship Weight

424.00 Lbs.
192.33 Kg.

Ship Method & Notations

Important Shipping Information

This Kiln Ships Via Truck

Part Number

PMT21 * Base Model

Price

$4,480.75

Quantity

This price is subject to change without notice.

Find A Local Paragon Seller

Purchase your Paragon Kiln through one of our authorized resellers / distributors and get local service.

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Options Click on the part numbers below to see full descriptions.
	Part Number	Description	Quantity	Price
	Knifemakers Heat Treating Kit	Contains 1 pair hot gloves, 1 heat treating fork, 4 knifeholders, and 8 knifeholder supports. You will need the kit if you remove all the blades together. If you remove them individually with tongs, you will need only the ho		$217.00
	Berry Paint	At no extra charge, you can order your Paragon kiln in rich berry instead of the standard blue or black. Add a splash of color to your shop! (The exact shade of paint may not match the color shown on your computer monitor. The berry kiln shown here a		$0.00
	Black Paint	At no extra charge, you can order your Paragon kiln in striking black instead of the standard blue.		$0.00
	Hot Pink Paint	At no extra charge, you can order your Paragon kiln in bright hot pink instead of the standard blue or black. Add a splash of color to your shop! (The exact shade of paint may not match the color shown on your computer monitor. The hot pink kiln show		$0.00
	Jade Paint	At no extra charge, you can order your Paragon kiln in jade instead of the standard blue or black. Add a splash of color to your shop! (The exact shade of paint may not match the color shown on your computer monitor. The jade kiln shown here also may		$0.00
	Navy Paint	At no extra charge, you can order your Paragon kiln in navy instead of the standard blue or black. Add a splash of color to your shop! (The exact shade of paint may not match the color shown on your computer monitor. The navy kiln shown here also ma		$0.00
	Purple Paint	At no extra charge, you can order your Paragon kiln in luxuriant purple instead of the standard blue or black. Add a splash of color to your shop! (The exact shade of paint may not match the color shown on your computer monitor. The purple kiln shown		$0.00
	Turquoise Paint	At no extra charge, you can order your Paragon kiln in turquoise instead of the standard blue or black. Add a splash of color to your shop! (The exact shade of paint may not match the color shown on your computer monitor. The turquoise kiln shown her		$0.00

Accessories

View Accessories For PMT21

Usages

Heat Treating Ovens

Industrial Furnaces

Additional Information

Options

Replacement Parts

Accessories

Important Shipping Information

Wiring Diagrams

PMT21

Manuals
Heat Treating Manual for KM & HT Series
Sentry 2.0 12-Key Ramp-Hold Manual, 2010 Edition

PMT21 Kiln Model/SKU: PMT21

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