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

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Mitsubishi® refractory lining, multi-segment PID digital controller, overheat protection


SKU: 1500 Category: Brand:



STF1200 25mm OD compact top-open rotary tube furnaces feature spiral wire coils embedded in Mitsubishi (Japan) alumina fiber insulation. A double walled steel internal housing helps minimize heat loss to exterior surface. 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.


 Electrical requirements  115V, 50/60Hz, 1~phase, 1,500 watts
 25mm OD x 700mm L, Quartz
 * 2″ diameter x 5″ L in the center with baffle
 Maximum working temperature  1200°C  (2 hours maximum continuous run time)
 Constant working temperature  1100°C
 Rotation speed
 0 to 20 rpm
 Constant working temperature under vacuum  1000°C
 Rated vacuum pressure  0.001 Pa / 0.0075 millitorr / 0.00001 mbar
 Rated positive pressure  0.02 MPa / 150 torr / 3 psi
 Heating element type
 Kanthal-A1 resistance coil wire
 Thermo couple type  K
 Refractory lining  Mitsubishi (Japan) 1500 grade fiber alumina
 Temperature controller  Single PID, 30 segments
 Maximum heating rate    < 30°C/min (recommended 15°C/min)
 Heating zone length  8″
 Temperature controller precision
 +/- 1°C
 Vacuum sealing flange kit

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

 Gas inlet/outlet
 1/4″ hose barb with 1/4″ BSPP (British standard parallel pipe)
 Unit dimensions
 23 x 14 x 17.5” (WxDxH) without tube
 Unit weight  140 Lb


How to Install an Across International Tube Sealing Flange










Standard package


Part description    






Part image 


 STF1200 25mm OD top-open rotary tube furnace
 1 pc

 Quartz tube 25mm OD x 700mm L
  * 2″ diameter x 5″ L in the center with baffle

1 pc

 Stainless steel vacuum sealing flanges w/ pressure meter 
 1 set

 Stainless steel hook
 1 pc

 Tube thermal block
4 pcs

 Spare fuse 2 pcs
 Thermal gloves  1 pair

 Furnace operation manual  1 pc

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

Vacuum setup

3/8" hose barb with no pump (no extra charge),KF25 flange port with no pump (no extra charge),Ai 110/220V EasyVac 7 cfm pump w/ mist filter,Ai 110/220V EasyVac 9 cfm 2-Stage pump w/ filter,Ai 110/220V SuperVac 5.6 cfm 0.3 micron pump,Ai 110V SuperVac 11cfm 0.3 micron pump


No additional accessories (no extra charge),2 quarts (1.9 L) of ultra grade 19 pump oil,EZ-Swap vacuum pump exhaust filter w/ fittings

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