OTF-1500X-5Z Five-Zone Tube Furnace with 1500°C Max Temperature, 84mm O.D. Mullite Tube, and Independent PID Controllers
The OTF-1500X-5Z tube furnace is engineered to support complex thermal processing tasks in materials science, such as gradient functional materials development, high-temperature phase transitions, and recrystallization studies. Its design incorporates a mullite processing tube with an outer diameter of 100 mm and an inner diameter of 92 mm, extending 1600 mm in length, suitable for vacuum or low-pressure environments below 0.02 MPa.
This furnace features five independently controlled silicon carbide (SiC) heating zones, each managed by a dedicated PID temperature controller capable of maintaining temperature accuracy within ±1°C. The total heating zone length is 1219 mm, segmented into zones of 12″, 8″, 8″, 8″, and 12″ respectively, allowing for the creation of precise thermal gradients up to 100°C/cm by using standard zone spacers or adjusting thermal insulation between zones.
Key Features
- Maximum working temperature of 1500°C with continuous operation up to 1400°C.
- Five independent PID programmable temperature controllers with up to 30 programmable segments each for precise heating and cooling profiles.
- Equipped with five S-type thermocouples, one per heating zone, for accurate temperature monitoring.
- Corundum (mullite) tube with stainless steel vacuum flanges designed for vacuum levels down to 10-2 torr using a mechanical vacuum pump.
- 42 silicon carbide rod heating elements rated for 1500°C operation, consumable and replaceable.
- RS485 communication port for laptop connection to monitor and record temperature profiles.
- Optional laptop with LabVIEW-based temperature control software and wireless remote control available.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | OTF-1500X-5Z |
| Maximum Working Temperature | 1500°C |
| Continuous Operating Temperature | 1400°C |
| Heating Zones | 5 independent zones with PID controllers |
| Heating Zone Lengths | 12″ + 8″ + 8″ + 8″ + 12″ (total 1219 mm) |
| Processing Tube Material | Corundum (Mullite) |
| Processing Tube Size | 100 mm O.D. x 92 mm I.D. x 1600 mm length |
| Heating Elements | 42 pcs silicon carbide rods (14 mm diameter, 150 mm heating length) |
| Temperature Controllers | PID with ±1°C accuracy, 30 programmable segments per zone |
| Thermocouples | 5 pcs S-type, one per zone |
| Power Input | 15 kW |
| Voltage | AC 208-240 V, three phase, 50/60 Hz, 50 A |
| Vacuum Capability | Down to 10-2 torr with mechanical vacuum pump |
| Recommended Heating Rate | 5°C/min |
| Thermal Gradient | Up to 100°C/cm with standard zone spacers |
Typical Applications
This furnace is ideal for research involving gradient functional materials, high-temperature phase transitions, recrystallization processes, and other advanced thermal treatments requiring precise temperature control and gradient formation under vacuum or low-pressure atmospheres.
Configuration & Operating Notes
The furnace includes two thermal blocks for insertion inside the tube to assist with temperature uniformity. Flange supports to prevent tube rotation are available as optional accessories. The silicon carbide heating elements are consumable and should be replaced as needed.
Use of graphite crucibles inside the alumina tube is not recommended. For gas flow applications, a two-stage pressure regulator must be installed to maintain gas pressure below 3 PSI, and flow rates should be limited to under 200 SCCM. Vacuum operation is safe up to 1300°C for mullite tube furnaces.
Optional laptop-based control software with wireless remote operation can be provided for enhanced temperature profile management and data logging.
Dimensions & Shipping
| Product dimensions | 100 O.D x 92 I.D x 1600mm L |
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