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Tube furnace up to 1350°C - FHA / FHC

Tube furnace up to 1350°C - FHA / FHC
FHA with separate control box
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The FHA, single zone, and FHC, 3-zone, tube furnaces can be used either vertically or horizontally and have a maximum operating temperature of 1350 °C.

The extensive F range of tube furnaces is offered with a wide range of accessories. The furnaces comprise ceramic fibre modules with a high quality 5 mm APM wire heating element mounted in the insulation, held in position by a ceramic holding ridge. The low thermal mass ceramic fibre insulation ensures low energy consumption and allows fast heating rates. The control thermocouple is a high grade type S thermocouple. Additionally, the tube furnace is available with up to 8 heating zones for the most precise temperature control and uniformity.

Standard features

  • 1350 °C maximum operating temperature
  • Programmable temperature controller with 24 segments: FHA fitted with EPC3016P1, FHC fitted with CC-T1
  • Over-temperature protection
  • Accepts work tubes with outer diameters up to 110 mm
  • Heated lengths of 200, 500, 750, 1000 or 1250 mm
  • Use in horizontal or vertical orientation
  • Exceptional lifetime and temperature stability
  • High grade type S thermocouple
  • Low thermal mass ceramic fibre insulation
  • High quality 5 mm APM wire as heating element
  • Furnace fitted with separate control box with 3 m cable, plug and socket
  • Ethernet communications

Options (specify these at time of order)

  • A range of sophisticated digital controllers, multisegment programmers and data loggers with digital communication options is available - more information about controllers
  • Wide choice of tube diameters and materials is available: eg quartz, ceramic, metal
  • 'L' stand for vertical usage
  • Insulation plugs & radiation shields to prevent heat loss & improve uniformity
  • Modified atmosphere and vacuum assemblies are available - more information
  • Larger tube diameters on request
  • Vacuum packages with a choice of rotary vane pump or turbomolecular pump are available for furnaces with tube inner diameters of 60 mm and above
  • Oxygen sensor for inert gas packages
  • 6 m length of cable between furnace body and control box with plug and socket
  • Laboratory Gas Safety System for safe use with hydrogen above 750 °C

Tube furnace up to 1350°C - FHA / FHC Mounting configurations

Furnace body and separate control box

Furnace body and separate control box

Option: Vertical stand

Option: Vertical stand

Tube furnace up to 1350°C - FHA / FHC Technical details


View inside of the tube furnace

  1. outer case
  2. end insulation
  3. case insulation
  4. heating elements
  5. inner insulation (hot face)
The rectangular housing is constructed with slots for convection cooling of the outer housing. With insulation made from low thermal mass ceramic fibre material, the heat conduction is reduced to a minimum.

Inside the tube furnace, the heating element is constructed of vacuum formed fibres containing free radiating heating elements that are attached to the insulation by a ceramic holding ridge.

When compared to conventional heating methods, the 5 mm thick heating wires are combined with a low voltage, heavy-weight transformer power supply that provides an extraordinary long lifetime of the heating elements and temperature stability. The control thermocouple is a high grade type S thermocouple. Additionally, each tube furnace model is available with up to 8 heating zones for the most precise temperature control and uniformity.

View inside
View inside

Tube furnace up to 1350°C - FHA / FHC Technical Data

Number of heated zones Max temp (°C) Furnace Ø (mm) Heated length (mm) Furnace dimensions H x W x D (mm) Furnace weight (kg) Tube length for use in air (mm) Tube length for use with modified atmosphere (mm) Control module dimensions H x W x D (mm) Control module weight (kg) Uniform length ±5°C (mm) Power (kW)
FHA 13/32/200 1 1350 32 200 420 x 400 x 350 25 390 925 500 x 550 x 700 50 100 1.2
FHA 13/32/500 1 1350 32 500 420 x 700 x 350 30 690 1225 500 x 550 x 700 50 250 2.4
FHA 13/50/200 1 1350 50 200 420 x 400 x 350 30 390 925 500 x 550 x 700 50 100 1.5
FHA 13/50/500 1 1350 50 500 420 x 700 x 350 35 690 1225 500 x 550 x 700 50 250 3.6
FHA 13/50/750 1 1350 50 750 420 x 950 x 350 40 940 1475 850 x 550 x 700 60 375 5.4
FHA 13/80/200 1 1350 80 200 420 x 400 x 350 35 390 925 500 x 550 x 700 50 100 2.1
FHA 13/80/500 1 1350 80 500 420 x 700 x 350 40 690 1225 500 x 550 x 700 60 200 5.2
FHA 13/80/750 1 1350 80 750 420 x 950 x 350 50 940 1475 850 x 550 x 700 70 375 7.8
FHA 13/80/1000 1 1350 80 1000 420 x 1200 x 350 80 1190 1725 850 x 550 x 700 90 500 10.4
FHA 13/110/500 1 1350 110 500 590 x 700 x 520 55 690 1225 850 x 550 x 700 70 250 7.8
FHA 13/110/750 1 1350 110 750 590 x 950 x 520 70 940 1475 850 x 550 x 700 90 375 11.5
FHA 13/110/1000 1 1350 110 1000 590 x 1200 x 520 100 1190 1725 1100 x 1200 x 700 90 500 16.0
FHA 13/110/1250 1 1350 110 1250 590 x 1450 x 520 130 1440 1975 1100 x 1200 x 700 90 610 20.0
FHC 13/32/500 3 1350 32 500 420 x 700 x 350 30 690 1225 500 x 550 x 700 50 350 2.4
FHC 13/50/500 3 1350 50 500 420 x 700 x 350 35 690 1225 500 x 550 x 700 50 350 3.6
FHC 13/50/750 3 1350 50 750 420 x 950 x 350 40 940 1475 850 x 550 x 700 60 550 5.4
FHC 13/80/500 3 1350 80 500 420 x 700 x 350 40 690 1225 500 x 550 x 700 60 350 5.2
FHC 13/80/750 3 1350 80 750 420 x 950 x 350 50 940 1475 850 x 550 x 700 70 550 7.8
FHC 13/80/1000 3 1350 80 1000 420 x 1200 x 350 80 1190 1725 850 x 550 x 700 90 800 10.4
FHC 13/110/500 3 1350 110 500 590 x 700 x 520 55 690 1225 850 x 550 x 700 70 300 7.8
FHC 13/110/750 3 1350 110 750 590 x 950 x 520 70 940 1475 850 x 550 x 700 90 500 11.5
FHC 13/110/1000 3 1350 110 1000 590 x 1200 x 520 100 1190 1725 1100 x 1200 x 700 90 750 16.0
FHC 13/110/1250 3 1350 110 1250 590 x 1450 x 520 130 1440 1975 1100 x 1200 x 700 90 950 20.0

Please note
- Heat up rate when using a ceramic work tube must be limited to 5 °C/min
- Further to the depth of the control module 150 mm for the power plugs and other plugs need to be added
- Minimum uniform length in horizontal furnace with insulation plugs fi tted at 100 °C below max. temperature
- Power supply: a = 3 phase 380 - 415 V / b = 3 phase 480 V / c = 3 phase 200 - 210 V / d = 3 phase 220 - 240 V / e = 1 phase 220 - 240 V

Content may be subject to modifications or corrections