Description
Ai STF1200 series top-open split chamber 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 (UK) digital controller with built-in digital communication port, allowing the user to connect to a PC for remote control and monitoring of the furnace. You can also save or export test results.
Features
- 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.)
- Built-in ammeter and dual voltmeters for easy monitoring and troubleshooting.
- Built-in computer interface.
- Long life type K thermocouple.
- ETL and CE certified, standard
Safety
- 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.
Warning! NEVER fill furnace with explosive gases, including Hydrogen, Carbon Monoxide and Methane.
General specifications
| Electrical requirements | 208-240VAC, 50/60 Hz, single phase |
| Tube material | Quartz |
| Maximum working temperature | 1200°C (2 hours maximum continuous run time) |
| Maximum constant working temperature | 1100°C |
| Constant working temperature under vacuum | 1000°C |
| Minimum working temperature | Ambient |
| 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 (Sweden) A1 2.0 resistance coil wire |
| Thermocouple type | K |
| Refractory lining | Mitsubishi (Japan) high quality 1500 grade fiber alumina |
| Temperature controller | Shimaden (Japan) fp93 (made in Japan) with 4 patterns and 40 segments (ie. 4 x 10 segments or 2 x 20 segments). |
| Maximum heating rate | < 30°C / min |
| Heating zone length | 16 inches |
| Constant temperature zone length | 10 inches |
| 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″ BSPT (British Standard Pipe Thread) |
| Certification | ETL tested to UL and CSA standards, CE |
| Download | Product brochure |
1-Zone
| Tube size (OD x length) | 60mm x 1m | 100mm x 1m | 150mm x 1m | 200mm x 1m | 250mm x 1.2m |
| Maximum output | 2.5 kW | 3.5 kW | 5 kW | 6 kW | 8 kW |
| Furnace assembled (LxWxH) | 49x18x27″ | 49x18x27″ | 49x19x28″ | 49x20x29″ | 49x20x29″ |
| Shipping dimensions (LxWxH) | 46x21x36″ | 46x21x36″ | 46x22x37″ | 50x28x40″ | 50x28x40″ |
| Shipping weight (Lb) | 270 | 350 | 470 | 520 | 670 |
2-Zone
| Tube size (OD x length) | 60mm x 1m | 100mm x 1m | 150mm x 1m |
| Maximum output | 3 kW | 4 kW | 5.5 kW |
| Furnace assembled (LxWxH) | 24x16x23″ | 25x16x24″ | 26x18x26″ |
3-Zone
| Tube size (OD x length) | 60mm x 1300m | 100mm x 1300m | 150mm x 1300m |
| Maximum output | 1.5 kW x 3 | 2 kW x 3 | 2.5 kW x 3 |
How to Program Across International furnaces
How to Install an Across International Tube Sealing Flange
Standard Package
| Part description
| Quantity
| Part image
|
| STF1200 top-open tube furnace | 1 pc |  |
| Quartz tube 1000mm length 60-100mm OD: 2 pcs, 150mm/250mm OD: 1 pc | 1-2 pcs |  |
| Stainless steel vacuum sealing flanges w/ pressure gauge | 1 set |  |
| Analog flow meter | 1 pc |  |
| Stainless steel hook | 1 pc |  |
| Alumina thermal block (for 120mm OD and down) Quartz thermal block (for 150mm OD and up) to protect flanges sealing gaskets from heat damage | 2 pairs |   |
| Alumina crucible | 5 pcs |  |
| Thermal gloves | 1 pair |  |
| Spare fuse | 2 pcs |  |
| USB/RS485 computer interface kit | 1 set |  |
| L6-30P 250 volt twist-lock plug (No plug installed for 250mm OD, only power cable) | Pre-installed |  |
| Furnace and Shimaden controller manual | 2 pcs |  |
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