Dual Chamber Furnace

Dual Chamber Furnace

  • Grieve - BT-12128, BT-12128-HT, BT-121212, BT-121212-HT and more
  • Digital temperature controller
  • Motor control push buttons and on-off heat switch
  • LED pilot lights

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Space saving, over and under, heat treating and tempering furnace combination.


Outside Dimensions

  • BT-122012 depth includes 14″ motor mount overhang at rear
  • Assembled dimensions include 10″ control panel overhang at right and, BT-122012 motor mount overhang at rear


 Operating Characteristics

  • 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 oven and minimum exhaust
  • Performance will vary with load and application


Certifications

  • 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:

  • When processing combustible material fire protection should be considered
  • Not for use with flammable solvents or vapors. Other models available for these applications

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
  • Door interlock turns off power to heating elements when door is opened to protect operator from line voltage at heating elements

Controls

  • Digital temperature controller
  • Motor control push buttons and on-off heat switch
  • LED pilot lights
  • 5 kA short circuit current rating (SCCR)

Construction

  • 208 volt (at 80% of 230 volt heat input),230 volt or 460 volt, 3-phase, 60 HZ – other input power available
  • All welded construction
  • High temperature Kanthal A-1 coiled wire heating elements supported in rugged ceramic plates
  • Heating elements located on sidewalls and ceiling of work space for excellent temperature uniformity
  • High pressure stainless steel recirculating blower
  • Insulated with light weight, energy saving refractory ceramic fiber
  • Heavy gauge aluminized steel exterior with Trilite Green enamel finish
  • Brushed stainless steel control panel face
  • Side hinged door
  • Removable ceramic hearth tray
  • Designed to support heat treating Bench Furnace
  • Fully assembled and factory tested

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

MODELWORKSPACEOUTSIDE DIMENSIONS*(WXDXH)MAX TEMPHEAT INPUTINSULATION THICKNESSOPERATING CHARACTERISTICS†DOOR TYPEHEIGHT W/ DOOR OPENHEARTH RATINGAPPROX SHIPPING WEIGHT
DIMENSIONS(WXDXH)VOLUMECU FTELECTRICKWGASBTU/HRCONTROL ACCURACYTEMPERATURE UNIFORMITYRISE TIME (ELECTRIC)RISE TIME (GAS)
BT-1212812" x 12" x 8"0.738" x 40" x 62"2,000°F6Not Available5"± 0.3%±15°F55Not Available83"601,300 lbs
BT-12128-HT12" x 12" x 8"0.740" x 40" x 64"2,200°F6Not Available6"± 0.3%±20°F80Not Available85"601,340 lbs
BT-12121212" x 12" x 12"138" x 40" x 68"2,000°F7.5Not Available5"± 0.3%±12°F50Not Available97"601,350 lbs
BT-121212-HT12" x 12" x 12"140" x 40" x 70"2,200°F7.5Not Available6"± 0.3%±17°F65Not Available99"601,400 lbs
BT-1218812" x 18" x 8"138" x 40" x 62"2,000°F7.5Not Available5"± 0.3%±10°F65Not Available83"601,425 lbs
BT-12188-HT12" x 18" x 8"140" x 40" x 64"2,200°F7.5Not Available6"± 0.3%±15°F75Not Available85"601,525 lbs
>BT-121812-HT12" x 18" x 12"1.540" x 40" x 70"2,200°F12Not Available6"± 0.3%±15°F60Not Available99"601,550 lbs
BT-12181212" x 18" x 12"1.538" x 40" x 68"2,000°F12Not Available5"± 0.3%±10°F45Not Available97"601,450 lbs
BT-1224812" x 24" x 8"1.338" x 40" x 62"2,000°F12Not Available5"± 0.3%±10°F50Not Available83"601,475 lbs
BT-12248-HT12" x 24" x 8"1.340" x 40" x 64"2,200°F12Not Available6"± 0.3%±15°F60Not Available85"601,530 lbs
BT-12241212" x 24" x 12"238" x 40" x 68"2,000°F15Not Available5"± 0.3%±10°F45Not Available97"601,550 lbs
BT-122412-HT12" x 24" x 12"240" x 40" x 70"2,200°F15Not Available6"± 0.3%±15°F60Not Available99"601,610 lbs
BAT-1212812" x 12" x 8"0.738" x 40" x 62"2,000°F6Not Available5"± 0.3%±15°F55Not Available83"601,370 lbs
BAT-12128-HT12" x 12" x 8"0.740" x 40" x 64"2,200°F6Not Available6"± 0.3%±20°F80Not Available85"601,410 lbs
BAT-12121212" x 12" x 12"138" x 40" x 68"2,000°F7.5Not Available5"± 0.3%±12°F50Not Available97"601,420 lbs
BAT-121212-HT12" x 12" x 12"140" x 40" x 70"2,200°F7.5Not Available6"± 0.3%±17°F65Not Available99"601,470 lbs
BAT-1218812" x 18" x 8"138" x 40" x 62"2,000°F7.5Not Available5"± 0.3%±10°F65Not Available83"601,445 lbs
BAT-12188-HT12" x 18" x 8"140" x 40" x 64"2,200°F7.5Not Available6"± 0.3%±15°F75Not Available85"601,545 lbs
BAT-12181212" x 18" x 12"1.538" x 40" x 68"2,000°F12Not Available5"± 0.3%±10°F45Not Available97"601,470 lbs
BAT-121812-HT12" x 18" x 12"1.540" x 40" x 70"2,200°F12Not Available6"± 0.3%±15°F60Not Available99"601,575 lbs
BAT-1224812" x 24" x 8"1.338" x 40" x 62"2,000°F12Not Available5"± 0.3%±10°F50Not Available83"601,580 lbs
BAT-12248-HT12" x 24" x 8"1.340" x 40" x 64"2,200°F12Not Available6"± 0.3%±15°F60Not Available85"601,625 lbs
BAT-12241212" x 24" x 12"238" x 40" x 68"2,000°F15Not Available5"± 0.3%±10°F45Not Available97"601,675 lbs
BAT-122412-HT12" x 24" x 12"240" x 40" x 70"2,200°F15Not Available6"± 0.3%±15°F60Not Available99"601,725 lbs