OTF1700X12Z 12-Zone Split Tube Furnace with Ø100 mm × 1800 mm Alumina Tube, Up to 1700°C
The OTF1700X12Z furnace is engineered for laboratory applications requiring precise spatial temperature control along an extended heating zone. It is especially suited for simulating reactive kinetics and mechanisms by establishing variable temperature gradients within a long alumina tube. This capability enables detailed thermal profiling and controlled reaction environments under ambient or vacuum conditions.
The furnace incorporates a 12-zone split heating design with individual PID temperature controllers, allowing independent regulation of each zone. The heating length totals 1400 mm within an 1800 mm long alumina tube of 100 mm outer diameter. The tube supports operation up to 1700°C at ambient pressure and up to 1450°C under vacuum, making it versatile for high-temperature material processing and research.
Key Features
- Maximum temperature of 1700°C with 12 independently controlled heating zones.
- Heating zones 1-5 and 11-12 use SiC elements rated up to 1500°C; zones 6-10 use MoSi2 elements rated up to 1700°C.
- Type S thermocouples monitor zones 1-5 and 11-12; Type B thermocouples monitor zones 6-10 for accurate temperature feedback.
- 12 PID programmable controllers with ±1°C accuracy and 0.3°C resolution, supporting up to 50 temperature segments.
- Ø100 mm × 1800 mm alumina tube designed for high-temperature operation under ambient or vacuum conditions.
- Stainless steel 304 water-cooled flanges with gas inlet, vacuum port, and pressure gauges for controlled atmosphere experiments.
- Integrated cooling fans maintain furnace surface temperature below 70°C for safe operation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 480 VAC, 3-phase, 50/60 Hz |
| Power Consumption | 60 kVA |
| Heating Zones | 12 independent zones, total heating length 1400 mm |
| Heating Elements | Zones 1-5 & 11-12: SiC (100 mm each, up to 1500°C); Zones 6-10: MoSi2 (100-200 mm each, up to 1700°C) |
| Thermocouples | Type S (Zones 1-5, 11-12), Type B (Zones 6-10) |
| Temperature Control | 12 PID controllers, ±1°C accuracy, 0.3°C resolution, 50 segments, RS485 interface |
| Processing Tube | Alumina tube Ø100 mm × 1800 mm length, max 1700°C ambient, 1450°C vacuum |
| Flanges | Stainless steel 304 water-cooled, gas inlet, vacuum port (KF25), service port (DN100CF or ISO100K) |
| Cooling Requirements | Chilled water 5-35°C, 10 L/min, 10 psi (recommended water chiller: KJ5000) |
| Pressure Range | Up to 0.2 bar gauge (approx. 3 psig), vacuum down to 3×10⁻² torr with pump |
| Safety Features | Overheating and broken thermocouple interlock and alarm |
Typical Applications
This furnace is ideal for research requiring controlled temperature gradients such as catalytic reaction kinetics, material synthesis under variable thermal conditions, and thermal stability testing. It supports experiments under ambient atmosphere or controlled vacuum environments.
Configuration & Operating Notes
The furnace includes a power cable for hard wiring and requires a chilled water supply for flange cooling. Optional accessories include a vacuum pump (recommended models: 240 L/min rotary vane or 200 L/min scroll pump) and port aligner. Installation requires a 3-day on-site setup by two engineers. The system features RS485 communication compatible with LabVIEW-based software for temperature control and monitoring.
