Vertical Furnace Tube for Gravity-Oriented Processing
Vertical Tube Furnace uses a vertical tube arrangement rather than a conventional horizontal structure.
This design is suitable for experiments where samples need to be positioned along the direction of gravity, where process gas needs to flow from bottom to top or top to bottom, or where vacuum, atmosphere sintering, and substrate coating are required.
The vertical configuration also makes it possible to arrange sample holders, crucibles, or gas connections according to the process.
The supplied information lists applications involving semiconductor nanomaterials, carbon fiber, graphene, and other new materials and processes.
The equipment is available in three temperature series, allowing buyers to select the furnace tube material and heating element according to the required process temperature.
1200°C, 1400°C and 1700°C Temperature Series
The 1200°C series has a maximum temperature of 1200°C and a working temperature of 1100°C.
It uses quartz tubes in φ60, φ80, or φ100 × 1000 mm sizes. Rated power is 3 kW, and resistance wire is used as the heating element.
The 1400°C series has a maximum temperature of 1400°C and a working temperature of 1300°C.
It uses corundum tubes with the same available diameter range and silicon carbide rods as the heating elements.
The 1700°C series has a maximum temperature of 1700°C and a working temperature of 1600°C.
It also uses corundum tubes, while molybdenum disilicide rods are used as the heating elements.
Matching Furnace Tube Material to Process Temperature
The three versions of the Vertical Tube Furnace are clearly separated by tube material and heating element.
Quartz tubes are used for the 1200°C temperature grade. Corundum tubes are used for the 1400°C and 1700°C systems.
Resistance wire, silicon carbide rods, and molybdenum disilicide rods correspond to the different temperature ranges.
Equipment selection should therefore consider actual reaction temperature, furnace atmosphere, tube inner diameter, sample height, and gas-flow direction instead of automatically choosing the highest temperature model.
The source information states that inert or reducing atmospheres can be introduced. The specific gas-line and vacuum configurations need to be confirmed in the technical solution.
High-Temperature Insulation and Non-Standard Support
Nengcheng Crystal produces polycrystalline mullite fiber and alumina crystal fiber that can be used for high-temperature furnace insulation.
The company can discuss insulation materials and vacuum-formed insulation components according to the selected furnace temperature grade.
Technical support can cover operating-condition analysis, material selection, and installation guidance.
Non-standard furnace tubes, insulation sleeves, and furnace lining components can also be developed according to drawings or physical prototypes.
Customized production normally takes 20–45 days. Photos or videos can be provided during manufacturing, and products are normally checked before packaging. Third-party inspection is accepted.
Product Specifications
|
Parameter |
1200°C Series |
1400°C Series |
1700°C Series |
|
Maximum Temperature |
1200°C |
1400°C |
1700°C |
|
Working Temperature |
1100°C |
1300°C |
1600°C |
|
Furnace Tube Material |
Quartz |
Corundum |
Corundum |
|
Furnace Tube Size |
φ60/80/100 × 1000 mm |
φ60/80/100 × 1000 mm |
φ60/80/100 × 1000 mm |
|
Heating Element |
Resistance wire |
Silicon carbide rod |
Molybdenum disilicide rod |
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