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1200ºC Three Zones Tube Furnace with Gas Mixture System
Horizontal Open-Type Tube Furnaces    View:269    date:2016/09/14    Back

1200ºC Three Zones Tube Furnace with Gas Mixture System
Furnace is long split-able three-zone tube furnace fr om 60mm (2.36") to 130mm (5") O. D tube size which can achieve faster heating up to 1200ºC and create a different thermal gradient by adjust three zone temperature. The furnace includes one fused quartz tube, one pair of vacuum sealing flanges with pressure gauge & ball valve for immediate use. Three 30 segments temperature controllers are installed with K type thermal couple. Microprocessor-based self-tuning PID control provides excellent control without overshooting and +/- 1ºC accuracy. It is an excellent furnace for annealing, diffusing and sintering sample in various atmospheres.









Quartz tube size

60 O. D x 55 I. D x1219 L mm
(2.36" O. D x 2.16" I. D x 48" L)

80 O. Dx 72 I. D x 1219 L mm
(3.14" O. D x 2.83" I. D x 48" L)

80 O. Dx72 I. Dx1400 Lmm
(3.14" O. Dx2.83" I. D x55" L)

101 O. D x 92 I. Dx 1400 L mm
(4" O. D x 3.62" I. D x 55" L)

130 O. Dx120 I. Dx1400 L mm
(5" O. D x 4.72" I. D x 55" L)

Heating zone length

Three zones: 610 mm ( 24") in total
Z1-Z2-Z3:152.4mm(6")-304.8mm (12")-152.4mm (6" )
Constant Temperature Zone: 20" (508 mm) length
(Three zones are heating at equal temperature simultaneously) 

Three zones: 900mm (36" ) in total
Z1-Z2-Z3:220mm (8.6")-440mm (17.3")-220 mm (8.6" )
Constant Temperature Zone:25"(625 mm) length
(Three zones are heating at equal temperature simultaneously)

Furnace structure

Double layer steel case with two cooling fan, which ensure low surface temperature;

Energy saving high purity fibrous alumina insulation;

Two fiberous ceramic tube blocks are included for blocking heat radiation from inside tube. (Ceramic blocks must be fully inserted into the furnace chamber before heating)

Rated voltage

AC 208-240V Single Phase, 50/60 Hz (40A breaker required)


7 KW Max.

Heating element

Fe-Cr-Al Alloy doped by Mo

Heating temperature

Max. Heating Temperature: 1200°C
Continuous Heating Temperature: 1100°C
Max. Heating Rate: 20°C/min

Temperature control

Three digital controllers each has 30-segments with PID intelligent temperature regulator which can precisely control accuracy with +/- 1°C.
Built in over-heated and broken thermocouple alarm system and power-off protection.
Three K type thermocouples (one for each zone)


1030 x 430 x 580 mm  (not included flange and tube)

Net Weight

about 80 kg


One year limited warranty for electrical parts. (Consumable parts such as processing tubes, o-rings and heating elements are not covered by the warranty, please order the replacement at related products below. )

Shipping dimension


Shipping weight



4 precision mass flow controller ( MFC)  with digital display and adjusting knob are installed on the left bottom case to control gas flow rate:
       4 Gas channels


 o      MFC 1: Control range from 0~100 SCCM
o      MFC 2: Control range from 0~200 SCCM
o      MFC 3: Control range from 0~200 SCCM
o      MFC 4: Control range from 0~500 SCCM
       Flowing rate accuracy: ±1% FS
       Gas inlet and outlet: 1/4" Swagelok tube connector
       One 80mL gas mixing tank is installed in bottom case
       Each gas channel has a stainless steel needle valve for easy on/off  
       The flow rate is adjustable from the MFC panel






SS vacuum flange with O-rings

1 pair


Fused quartz tube

1 pc


Alumina fiber foam tube block

4 pc