Product Description
The NACVST vertical split tube furnaces comprise a furnace body which is mounted on a vertical stand and split into two halves along its length.
The free standing vertical design is ideal for wrap around heating applications such as extension test rigs or vertical reaction tubes. The VST is also available as a lower temperature version with a 1200°C maximum operating temperature.
Usually requires, but does not include, an appropriate accessory work tube 32 mm, 66 mm or 90 mm maximum outer diameter.
Standard Features
- 1700°C maximum operating temperature
- Heated tube length of 250 mm
- Three models for tubes with outer diameters up to 32 mm, 32 to 66 mm and 66 to 90 mm
- Furnace splits into two halves to accommodate work tubes or samples fixed into a test rig
- Molybdenum disilicide heating elements
- Supplied with wide angle opening configuration complete with stand
- Control module with 2 metre conduit to furnace
- Programmable 3216P1 controller
- Over-temperature protection
Options (specify these at time of order)
- Wide choice of tube diameters and materials is available: eg quartz, ceramic, metal
- Control module on longer 6 metre conduit
- Insulation plugs & radiation shields are strongly recommended for high temperature vertical tube furnaces to prevent heat loss & improve uniformity
- Modified atmosphere and vacuum end seal assemblies
- A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications
Control Options
- 3216 Programmable Controllers
- nanodac Record / Control / Programmer
- 3508 Programmable Controllers
Content may be subject to modifications or corrections
Advanced Heating PerformanceUtilizing MoSi2 molybdenum disilicide heating elements, the NACVST vertical tube furnace achieves rapid heating rates up to 20C/min and operates efficiently within a temperature range of room temperature to 1700C. The precision PID programmable controller enables stable and repeatable thermal cycles, essential for delicate materials processing and sintering.
Versatile Construction & Split DesignThe furnaces split cylindrical chamber and double-layer alumina fiber insulation ensure excellent thermal efficiency, reduced heat loss, and easy tube access. With multiple tube material optionsquartz, alumina, or stainless steelthe system is adaptable to a wide spectrum of applications in research and industrial settings.
Safety and User-Friendly FeaturesEnhanced safety is built into the system with over-temperature protection, door interlocks, and leakage protection. Easy-to-read LED digital displays and semi-automatic operation make the furnace user-friendly, while optional accessories like gas flow control, vacuum systems, and flanges expand its functionality for specialized uses.
FAQs of NACVST High Temperature Vertical Single Zone Split Tube Furnaces:
Q: How do I operate the NACVST Vertical Single Zone Split Tube Furnace for optimal performance?
A: To achieve optimal results, ensure the furnace is connected to a stable 220/240 V supply and set your desired program using the PID programmable controller. Select the appropriate tube material (quartz, alumina, or stainless steel) based on your sample. Gradually ramp up the heating rate up to 20C/min, within an ambient temperature of 5-40C, and monitor progress through the LED digital display for precision control.
Q: What are the main safety features integrated into this furnace?
A: The furnace is equipped with essential safety systems, including over-temperature protection, a door interlock mechanism preventing accidental access during operation, and leakage protection to safeguard both users and equipment.
Q: When should I use the optional accessories like gas flow control or vacuum system?
A: Optional accessories such as gas flow control or vacuum systems are valuable when your experimental process requires controlled atmospheric conditions, or when working with sensitive materials that necessitate an inert or reduced-pressure environment for reliable results.
Q: Where is this furnace typically used, and what are its key applications?
A: This furnace is widely utilized in laboratories, research institutions, and industrial R&D for processes like materials sintering, high-temperature testing, ceramic firing, and sample preparation. Its vertical split design supports easy tube accessibility and replacement.
Q: What are the benefits of the split design and double-layer insulation?
A: The split design allows for straightforward tube installation and removal, streamlining experimental workflows. Double-layer alumina fiber insulation improves thermal efficiency, minimizes heat loss, and ensures the outer shell remains cooler for enhanced user safety.
Q: How accurate is the temperature control of this furnace?
A: The NACVST furnace offers precise temperature regulation with an accuracy of 1C, providing consistent heating profiles essential for reproducible research and high-quality material processing.