1200C 1-Zone 25mm OD Compact Rotary Top-Open Tube Furnace

Save $263.60 USD
Power Lab Supply 2SKU: RTF1200.25
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Sale price$6,326.40 USD Regular price$6,590.00 USD




RTF1200 25mm OD compact top-open rotary tube furnaces feature spiral wire coils embedded in MitsubishiĀ (Japan) alumina fiber insulation. A double walled steel internal housing helps minimize heat loss to exterior surface.Ā Furnace operation is controlled by a multi-segment digital controller.



  • Compact, portable and lightweight design.
  • Top-open furnace chamber for fast and easy tube access.
  • Standard package includes set of stainless steel vacuum sealing flanges with valves and pressure meter.
  • Microprocessor based self-tuning PID control provides optimum thermal process with minimal overshoot.
  • Multiple atmosphere processes in a single cycle are possible (ex: binder burn out in air and parts sintering under rough vacuum or inert gas environment.)
  • Long life type K thermocouple.


  • Overheat protection shuts down the furnace if temperature is outside of acceptable range (refer to controller's manual) or when the thermocouple is broken or malfunctions.
  • Power failure protection resumes furnace operation right after the point of failure when power is reestablished.
  • Limit switch turns off furnace once top is open

Warning! NEVER fill furnace with explosive gases, including Hydrogen, Carbon Monoxide and Methane.


How to Install an Across International Tube Sealing Flange

Ā Electrical requirements Ā 115V, 50/60Hz, 1~phase, 1,500 watts
Ā Tube
Ā 25mm OD x 700mm L, Quartz
Ā * 2" diameter x 5" L in the center with baffle
Ā Maximum working temperature Ā 1200Ā°CĀ Ā (2 hours maximum continuous run time)
Ā ConstantĀ working temperature Ā 1100Ā°C
Ā Rotation speed Ā 0 to 20 rpm
Ā Constant working temperature under vacuum Ā 1000Ā°C
Ā Rated vacuum pressure Ā 0.001 Pa / 0.0075 millitorr / 0.00001 mbar
Ā Rated positive pressure Ā 0.02 MPa / 150 torr / 3 psi
Ā Heating element type
Ā Kanthal-A1Ā resistance coil wire
Ā Thermo couple type Ā K
Ā Refractory lining Ā MitsubishiĀ (Japan)Ā 1500 grade fiber alumina
Ā Temperature controller Ā Single PID, 30 segments
Ā Maximum heating rate Ā  Ā < 30Ā°C/min (recommended 15Ā°C/min)
Ā Heating zone length Ā 8"
Ā Temperature controller precision
Ā +/- 1Ā°C
Ā Vacuum sealing flange kit

Ā Stainless steel vacuum sealing flanges with oneĀ vacuum gauge,
two valves and four thermal ceramic blocks. Ā  Ā  Ā 

Ā Gas inlet/outlet Ā 1/4" hose barb with 1/4" BSPP (British standard parallel pipe)
Ā Unit dimensions Ā 23 x 14 x 17.5" (WxDxH) without tube
Ā UnitĀ weight Ā 140Ā Lb
Standard Packages
Standard package


Part descriptionĀ Ā Ā Ā 


Ā Ā Ā 

Ā  QuantityĀ Ā 



Part imageĀ 


Ā RTF1200 25mm OD top-open rotary tube furnace Ā 1 pc

Ā Quartz tube 25mm OD x 700mm L
Ā  * 2" diameter x 5" L in the center with baffle
1 pc

Ā Stainless steel vacuum sealing flanges w/ pressure meterĀ  Ā 1 set

Ā Stainless steel hook Ā 1 pc

Ā Thermal block 1 set

Ā Spare fuse 2 pcs
Ā Thermal gloves Ā 1 pair

Ā Furnace operation manual Ā 1 pc


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