1200C 1-3 Zone Rotary & Tilting Top-Open Tube Furnace


Ai STF1200 series top-open tube furnaces feature the famous Kanthal (Sweden) spiral wire coils embedded in Mitsubishi (Japan) high quality grade 1500 alumina fiber insulation. A double walled steel internal housing helps minimize heat loss to exterior surface.

Furnace operation is controlled by Eurotherm multi-segment digital controller, allowing the user to connect to a PC for remote control and monitoring of the furnace.

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SKU: RTF1200 Categories: ,



  • 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.)
  • Built-in ammeter and dual voltmeters for easy monitoring and troubleshooting.
  • Built-in computer interface.
  • 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.


General Specifications


Electrical requirements208-240VAC, 50/60 Hz, single phase
Rotation speed & inclination0 to 20 rpm, 0 to 30°
Tube materialQuartz
Maximum working vs constant temperaturesWorking: 1200°C (2 hours maximum continuous run time)
Constant: 1100°C
Constant working temperature under vacuum1000°C
Rated vacuum pressure0.001 Pa / 0.0075 millitorr / 0.00001 mbar
Rated positive pressure0.02 MPa / 150 torr / 3 psi
Heating element type
Kanthal (Sweden) A1 2.0 resistance coil wire
Thermocouple typeK
Refractory liningMitsubishi (Japan) high quality 1500 grade fiber alumina
Temperature controllerEurotherm multi-segment digital controller
Maximum heating rate < 30°C / min
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/outlet1/4″ hose barb with 1/4″ BSPT (British Standard Pipe Thread)

Model Comparison


Tube size (OD x L)60mmx1.2m120mmx1.2m60mmx1.2m120mmx1.6m60mmx1.4m120mmx2m
Tube center with baffle
(diameter x L in mm)
Heating zone16″16″8+8″16+16″8+8+8″16+16+16″
Maximum output3.5 kW6 kW3.5 kW12 kW10 kW18 kW
Eurotherm controller1 pc1 pc2 pcs2 pcs3 pcs3 pcs
Furnace dimensions (LxWxH)36x18x55″38x20x57″36x18x55″42x20x57″38x21x56″46x22x59″
Shipping dimensions (LxWxH)39x22x59″41x23x61″39x22x59″45x23x61″41x25x60″50x25x63″
Shipping weight (Lb)330400330400370460








How to Install an Across International Tube Sealing Flange


Standard Package



Part description






Part image


RTF1200 top-open rotary and tilting tube furnace1 pc
Quartz tube1 pc
Stainless steel vacuum sealing flanges w/ pressure gauge1 set
Analog flow meter1 pc
Stainless steel hook1 pc
Tube thermal block2 pairs
Alumina crucible5 pcs
Thermal gloves1 pair
Spare fuse2 pcs
USB/RS485 computer interface kit1 set
L6-30P 250 volt twist-lock plugPre-installed
Furnace and Shimaden controller manual2 pcs

Additional information

Weight400 lbs
Dimensions41 × 23 × 61 cm
Choose model

1200C rotary/tilting tube furnace 60mm OD 1-zone (+$0.00), 1200C rotary/tilting tube furnace 60mm OD 2-zone (+$3000.00), 1200C rotary/tilting tube furnace 60mm OD 3-zone (+$5,000.00), 1200C rotary/tilting tube furnace 120mm OD 1-zone (+$4,000.00), 1200C rotary/tilting tube furnace 120mm OD 2-zone (+$10,000.00), 1200C rotary/tilting tube furnace 120mm OD 3-zone (+$15,000.00)

Vacuum setup

3/8" hose barb with no pump (no extra charge), KF25 flange port with no pump (no extra charge), Ai 110V SuperVac 11cfm 0.3 micron pump (+$2,690.00), Edwards 110/220V 6.9 cfm RV8 pump (+$4,333.96), Edwards 110/220V 21 cfm E2M28 pump (+$8,163.17), Edwards 110/220V 7.5 cfm nXDS10iC pump (+$10,043.19), Ai 110/220V EasyVac 9 cfm 2-Stage pump w/ filter (+$790.00), Ai 110V SuperVac 5.6cfm 0.3 micron pump (+$1,890.00)


No additional accessories (no extra charge), 2 quarts (1.9 L) of ultra grade 19 pump oil (+$44.00), EZ-Swap vacuum pump exhaust filter w/ fittings (+$159.00)

Delivery liftgate service

I do not need liftgate service (+$0.00), Yes I need liftgate service (+$45.00)


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