Inert Atmosphere
Bench Furnaces
BF-720
INERT
ATMOSPHERE
ELECTRIC
HEAT TREATING
FURNACES
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Inert Atmosphere |
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BULLETIN BF-720 INERT |
| Standard Features Specifications Standard Equipment Additional Equipment |
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| MODEL
BAF-121212-HT WITH OPTIONAL INERT ATMOSPHERE INLET PIPING |
MODEL BAF-122412 WITH OPTIONAL FLOOR STAND AND INERT ATMOSPHERE INLET PIPING |
STANDARD
FEATURES Back
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—Digital, microprocessor based, thermocouple actuated, indicating temperature controller
—On-off heat switch
—Easy-to-see pilot light`
—Adjustable, thermocouple actuated, manual reset excess temperature controller
—Separate heating element control contactor
—Door interlock switch turns off power to heating elements when door is opened; restores power when door is closed
—Heavy gauge continuously welded aluminized steel cabinet for atmosphere tightness
—Brushed stainless steel control panel face
—High temperature ceramic fiber resilient door gasket to contain atmosphere
—Heat resistant alloy atmosphere inlet and outlet
—Gas spring assisted manually operated vertical lift door
—Door hot side faces away from operator at all times
—High temperature alloy wire heating elements supported by rugged ceramic plates
—Energy-saving lightweight ceramic fiber insulation reduces operating costs
—Fast heat-up
—Heating elements located on sidewalls and roof for excellent temperature uniformity throughout work space
—Ceramic hearth tray
—1 year limited warranty
SPECIFICATIONS Back
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NOT FOR USE WITH FLAMMABLE SOLVENTS, VAPORS OR GASES.
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*1950°F for continuous operation under Nitrogen atmosphere. For operation at higher temperatures, furnace must be periodically run with air atmosphere to buildup protective oxide coating on heating elements. |
†Accuracy as percent of controller span. Uniformity at 100°F below
maximum temperature. Rise Time in minutes to 100°F below maximum temperature. Tests run with empty furnace and minimum exhaust. Performance will vary with load and application. See Bulletin TC-920 for additional details. |
STANDARD
EQUIPMENT Back
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— 208 volts, 1 or 3-phase, 50/60 Hz
— 230 volts, 1 or 3-phase, 50/60 Hz
— 460 volts, 3-phase, 50/60 Hz
— Other electrical characteristics available
Each furnace features completely wired control panel, located under the furnace,
enclosing terminals for incoming power, temperature controller, heating element
control contactor, excess temperature controller, separate contactor interlocked
with excess temperature controller, 115 volt control circuit transformer, on-off
heat switch and red pilot light. Door interlock switch turns off power to heating
elements when door is opened. High temperature enamel painted aluminized steel
exterior.
Ceramic hearth tray rated for 60 lbs distributed loading. Atmosphere inlet (1/2"
NPT) at side of work space and atmosphere outlet (3/4" NPT) through the top
at back. Sealed rear terminal box with vent petcock.
Cross section through work space
(Front View)
ADDITIONAL
EQUIPMENT AVAILABLE Back
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See Bulletin TC-960 for modifications and other
optional equipment.
Option FS
Option PTC3
Option RT
Option PRTC
Option DTS3
Option SDT
Option BT
Alloy Hearth
Tray
7"x11"
Option AH812
11"x11"
Option AH1212
11"x17"
Option AH1218
11"x23"
Option AH1224
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| Bench Furnaces |
