OTF1200XIIIC 1200°C Max 18″ Long Three-Zone Tube Furnace with Quartz Tube and Flange
The OTF1200XIIIC tube furnace is engineered for laboratory processes requiring controlled high-temperature environments such as sample annealing, diffusion, and sintering. Its design accommodates various gas atmospheres and supports operation up to 1200°C, making it suitable for advanced material research and processing tasks.
This furnace features a compact, split-able heating chamber divided into three equal 6-inch zones totaling 18 inches in length. Users can select from three fused quartz tube sizes (60 mm, 80 mm, or 100 mm outer diameter) with an included flange, enabling customization based on sample size and experimental requirements. The furnace is UL ready and CE certified, ensuring compliance with safety standards.
Key Features
- Three-zone heating with individual microprocessor-based PID controllers and K-type thermocouples for precise temperature regulation within ±1°C.
- Maximum temperature of 1200°C at flowing gas, with continuous operation up to 1100°C; vacuum operation up to 1000°C.
- Split cover with interlock protection to cut power if the door is opened during heating, enhancing user safety.
- Double-layer steel casing with two cooling fans to maintain low surface temperature and protect components.
- Energy-efficient high-purity fibrous alumina insulation and included alumina fiber foam tube blocks to minimize heat loss.
- Fused quartz tube designed for vacuum and low-pressure operation below 0.12 MPa absolute pressure.
- RS485 communication port for optional PC control with available MTS-02 control module and software.
Technical Specifications
| Parameter | Specification |
|---|---|
| Maximum Temperature | 1200°C (flowing gas) |
| Continuous Heating Temperature | 1100°C (flowing gas) |
| Maximum Vacuum Temperature | 1000°C |
| Heating Zones | 3 zones, each 152.4 mm (6″) long; total 450 mm (18″) |
| Temperature Control | Three MTE certified controllers with 30 programmable segments, PID auto-tune, ±1°C accuracy |
| Thermocouples | Three K-type thermocouples (one per zone) |
| Heating Elements | Fe-Cr-Al alloy doped with Mo |
| Power Supply | AC 208-240V, single phase, 50/60 Hz |
| Power Consumption | 4 kW max. |
| Quartz Tube Options | 60 mm, 80 mm, or 100 mm outer diameter; 1000 mm length; includes flange and vacuum fittings |
| Cooling | Two cooling fans for flange and surface temperature control |
| Safety Features | Split cover interlock, over-temperature protection, broken thermocouple alarm |
| Communication | RS485 port for optional PC control |
Typical Applications
Ideal for laboratory-scale annealing, diffusion studies, sintering of ceramics and metals, and controlled atmosphere heat treatments requiring precise temperature gradients and uniformity.
Configuration & Operating Notes
The furnace includes a fused quartz tube with flange, alumina fiber foam tube blocks for thermal insulation, vacuum flanges with high-temperature silicone O-rings, and a set of metric hex wrenches. The split cover features an interlock to cut power if opened during operation. Cooling fans maintain safe surface temperatures and flange cooling.
Optional accessories include a computerized temperature control system (MTS-02), Eurotherm temperature controllers with enhanced accuracy, vacuum pumps for improved vacuum levels, gas mixing stations, and sample holders. For vacuum operation, the quartz tube furnace is designed for pressures below 0.12 MPa absolute. Proper calibration is recommended to ensure temperature accuracy.
