Inert Atmosphere Ovens

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Inert Atmosphere Ovens

These ovens protect parts from oxidation using any non-flammable gas such as Nitrogen, Argon or Carbon Dioxide. Horizontal air flow completely surrounds work on shelves or large parts placed directly on the optional reinforced work space bottom. Includes cooling jacket which can be equipped with optional cooling blower and automatic dampers. Installation of optional atmosphere purge solenoid, cooling blower and programming temperature controller provides completely automatic sequencing.

Inert Atmosphere Ovens Model Specifications:

Not for use with flammable solvents, vapors, or gases.

Model Workspace Outside Dimensions*(WxDxH) Max Temp Blower Heat Input Insulation Thickness Operating Characteristics† Approx Shipping Weight
Dimensions(WxDxH) VolumeCu Ft CFM HP ElectricKW GasBTU/HR Control Accuracy Temperature Uniformity Rise Time (Electric) Rise Time (Gas)
IA-550 24" x 24" x 24" 8 44" x 55" x 50.6" 550°F 400 9 Not Rated 6" ±0.3% ±5°F 23 Not Available 1,075 lbs
IA-750 24" x 24" x 24" 8 48" x 59" x 52.6" 750°F 400 12 Not Rated 8" ±0.3% ±8°F 35 Not Available 1,250 lbs
IB-550 24" x 36" x 24" 12 44" x 67" x 50.6" 550°F 400 9 Not Rated 6" ±0.3% ±5°F 30 Not Available 1,315 lbs
IB-750 24" x 36" x 24" 12 48" x 71" x 52.6" 750°F 400 12 Not Rated 8" ±0.3% ±8°F 57 Not Available 1,510 lbs
IC-550 36" x 36" x 36" 27 56" x 67" x 62.6" 550°F 600 ½ 12 Not Rated 6" ±0.3% ±5°F 39 Not Available 1,700 lbs
IC-750 36" x 36" x 36" 27 60" x 71" x 64.6" 750°F 600 ½ 18 Not Rated 8" ±0.3% ±8°F 55 Not Available 2,060 lbs
ID-550 36" x 48" x 36" 36 56" x 79" x 62.6" 550°F 600 ½ 12 Not Rated 6" ±0.3% ±5°F 52 Not Available 2,180 lbs
ID-750 36" x 48" x 36" 36 60" x 83" x 64.6" 750°F 600 ½ 18 Not Rated 8" ±0.3% ±8°F 73 Not Available 2,540 lbs

† Operating Characteristics

Inert Atmosphere Ovens Model Details:

Specifications for Inert Atmosphere Ovens

AIR FLOW Forced Convection, Horizontal
WORKS SPACE DIMENSIONS (WxDxH) 24" x 24" x 24"
DOORS Manual
OUTSIDE DIMENSIONS (WxDxH) 44" x 55" x 50.6"

Standard Features for Inert Atmosphere Ovens

  • UL Listed Control Panel
  • Meets the Requirements of the Following Standards:
    • NFPA 86 (Standard for Ovens and Furnaces)
    • NFPA 70 (National Electric Code)
    • FM (Factory Mutual)
    • OSHA
  • Caution:
    • For use with inert atmospheres only cannot be used with flammable gases
    • When processing combustible material fire protection should be considered
    • Not for use with flammable solvents or vapors. Other models available for these applications. For more information see Class A Solvent Processing page at this website
Safety Equipment
  • Adjustable manual reset excess temperature interlock to turn off heat on malfunction of main temperature controller
  • Separate heating element control contactors to turn off heat on malfunction of main control contactors
  • Recirculating blower air flow safety switch to turn off heat on loss of recirculated air flow
  • Electrical interlock shuts off heat if power to recirculating blower is interrupted
  • Digital temperature controller
  • Motor control push buttons and on-off heat switch
  • LED pilot lights
  • 5 kA short circuit current rating (SCCR)
  • 208 volt, 230 volt or 460 volt, 3-phase, 60 HZ – other input power available
  • All welded construction – interior seams welded gas-tight
  • Durable, electrically isolated, Incoloy tubular heating elements
  • Heating elements located in heat chamber to prevent radiant heating
  • High pressure carbon steel recirculating blower with exterior blower shaft seal
  • Wall penetrations through pipes welded at inside wall and fitted with compression fitting at outside of oven
  • Inert atmosphere inlet (½” NPT) with pressure regulator to maintain positive pressure within oven
  • Oven atmosphere outlet with pressure relief that can be manually opened to increase inert gas flow to purge air from oven
  • 0 to 200 cubic foot per hour atmosphere flow meter
  • 0 to 3” water column pressure gauge to display internal pressure
  • Air jacket on inner oven walls for forced cooling
  • Channel shelf supports prevent shelves tipping
  • Insulated with 10 lbs per cubic foot density rockwool insulation
  • 16 gauge 304 stainless steel interior with plated hardware
  • Aluminized steel exterior with Trilite Green enamel finish
  • Brushed stainless steel control panel face
  • Heavy duty doors with adjustable offset door hinges allowing adjustment to maintain gas tight seal
  • Inner oven walls extended through oven throat area to seal directly against silicone rubber door seal
  • Adjustable, 2-point, cam action positive latching door hardware
  • Fully assembled and factory tested for temperature uniformity
  • 1 year limited warranty

Modifications & Accessories for Inert Atmosphere Ovens

  • Nickel Plated Carbon Steel Shelf

    Oven accessory adding a nickel plated carbon steel shelf with maximum distributed load of either 50lbs 100lbs, or 200lbs depending on the oven model.

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  • Stainless Steel Shelf

    Oven accessory adding a Stainless Steel Shelf with maximum distributed load of either 50lbs, 100lbs or 200lbs depending on oven model.

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  • Integral Oven Legs

    Oven modification adding integral oven legs. Includes steel plate shelf.

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  • Removable Oven Stand

    Oven modification adding a removable oven stand. Includes steel plate shelf.

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  • Reinforced Workspace Bottom

    Oven modification adding a reinforced workspace bottom of 500 lbs. capacity at removable subway grate; reduces available work space height by 1″.

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  • Programmable Temperature Controller

    Oven modification adding a programmable Temperature Controller. Microprocessor based, digital indicating, thermocouple actuated, in lieu of standard controller.

    -Program Parameters: 40 profiles of up to 50 steps each, a real-time clock with battery backup to allow starting profile at any time of day

    -Digital Display, 4.3” color touch screen

    -Accuracy, ±0.1% of span plus 1 degree display error

    -Connectivity, Relay output for alarm or other notification, two (2) USB ports, Ethernet compatible

    Also Available:

    -Up to four (4) control channels of temperature, relative humidity or vacuum

    -Monitor up to16 sensors

    -Math and logic functions

    -Digital inputs and outputs

    -Data logging

    -Graphic Trending

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  • Digital Timing Temperature Controller

    Modification adding a Digital Timing Temperature Controller. Microprocessor based, incorporates 99 hour 59 minute timer, starts timing temperature reaches set point and shuts down oven at end of set time.

    • Digital Display, two LED, alphanumeric, 4 digit displays; 0.875″ high for temperature display and 0.500″ high for set point display
    • Accuracy, ±0.1% of span plus 1 degree display error
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  • Recording Thermometer

    Accessory adding a Recording Thermometer. Thermocouple actuated.

    • Record: 10″ diameter circular chart 24 hour chart rotation
    • Digital Display: 0.56″ high, LED, alphanumeric, 4 digit display; LED status display
    • Accuracy: ±0.25%of span plus 1 degree display error
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  • SCR Power Controller

    Electrical modification adding an SCR Power Controller. Features:

    •Silicon controlled rectifier power controllers are completely solid state industrial controllers that ensure precise proportioning of electric power to the heating elements.

    •Oven temperature is maintained smoothly and evenly over the entire temperature range of the unit.

    •SCR power controllers minimize maintenance, as there are no moving parts or electrical contacts to wear out.

    •Heating element fatigue is reduced since the elements do not cool between releases of electric power.

    •Zero voltage firing, including the first one half cycle of voltage, minimizes radio frequency and electromagnetic interference.

    •Transient voltage suppressor networks are included, and the units are provided with protective fusing.

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Custom Ovens