1500°C 1-3 Zone Top-Open Tube Furnace with Alumina Tube and Sealing Flanges (STF1500 Series)

The STF1500 series furnaces are designed for high-temperature applications with a maximum temperature of 1500°C, offering precision control and versatile processing options. These top-open tube furnaces are available in 1-zone, 2-zone, and 3-zone configurations, allowing flexibility in thermal treatments and multi-step processes under controlled atmospheric conditions.

Key Features:

• High-Quality Insulation and Heating:

  • The furnace features Mitsubishi (Japan) high-purity alumina fiber insulation for excellent thermal efficiency and minimal heat loss.
  • SiC (Silicon Carbide) heating elements are used to achieve uniform heating with high stability. These elements are suitable for reaching and maintaining high temperatures in demanding applications.

• Multiple Heating Zones:

  • The furnace is available in 1-zone, 2-zone, and 3-zone configurations for more precise temperature control across different parts of the tube. Each zone can be independently controlled for customized thermal gradients and processes.

• Temperature Control:

  • The furnace is controlled by a Eurotherm (UK) digital multi-segment controller, which provides precise control and monitoring. The self-tuning PID control minimizes overshoot and ensures accurate temperature regulation.
  • The temperature controller precision is ±1°C, ensuring high repeatability and consistency.

• Atmospheric Control:

  • Multiple atmosphere processes can be conducted within a single cycle (e.g., binder burnout in air and parts sintering under vacuum or inert gas environments).
  • Includes stainless steel vacuum sealing flanges, valves, and pressure meters for managing gas flow and creating vacuum or inert atmospheres.

• Safety Features:

  • Overheat protection: The furnace will shut down if the temperature exceeds the set range or if the thermocouple malfunctions.
  • Power failure protection ensures the furnace resumes operation after a power interruption.

• Compact and Portable Design:

  • The furnace is designed for easy mobility and can be conveniently installed in various laboratory or industrial settings.

Specifications:

Furnace:

• Electrical Requirements: 208-240V, 50/60Hz, single phase
• Tube Material: High purity (99%) Al2O3 alumina
• Maximum Working Temperature: 1500°C (with a maximum continuous runtime of 2 hours)
• Constant Working Temperature: 1400°C
• Rated Vacuum Pressure: 0.001 Pa / 0.0075 millitorr / 0.00001 mbar
• Rated Positive Pressure: 0.02 MPa / 150 torr / 3 psi
• Heating Element: SiC (Silicon Carbide)
• Thermocouple Type: S-type
• Refractory Lining: Mitsubishi (Japan) 1600-grade fiber alumina
• Temperature Controller: Eurotherm (UK) multi-segment digital controller
• Max Heating Rate: 5°C/min (above 1200°C) and 10°C/min (below 1200°C)
• 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.

Model Comparison:

Applications:

The STF1500 tube furnace is ideal for high-temperature processes such as:

• Sintering, calcination, and thermal treatments of various materials.
• Binder burnout in air followed by sintering under vacuum or inert gases.
• Material research, including testing ceramics, composites, and metals at extreme temperatures.
• Suitable for laboratories and industries requiring precise control over temperature, atmosphere, and vacuum.

Conclusion:

The STF1500 series furnaces provide precise control and excellent thermal performance at temperatures up to 1500°C, making them suitable for a wide range of high-temperature applications. Their modular zone configurations offer flexibility in process optimization, while their robust insulation, vacuum sealing, and safety features ensure reliable and consistent results.