OTF-1200X-VT-V-100 Five-Zone Split Vertical Tube Furnace with 4″ Quartz Tube and Stainless Steel Vacuum Flanges
The OTF-1200X-VT-V-100 is engineered for advanced laboratory applications requiring controlled atmosphere heat treatment, such as quenching tests and nano-powder production. Its vertical tube design facilitates rapid heating and quenching of samples under vacuum or flowing gases, enhancing process efficiency and material quality.
This furnace incorporates a 100mm outer diameter quartz tube sealed with stainless steel vacuum flanges, enabling vacuum levels down to approximately 0.1 torr depending on the vacuum pump used. The five independently controlled heating zones, each 200mm in length, provide a total heated length of 1000mm with a uniform temperature zone of 650mm when zones are set identically.
Key Features
- Maximum temperature of 1200°C achievable within one hour, with continuous operation up to 1100°C.
- Precision MET-certified temperature controller with 30 programmable segments and ±1°C accuracy.
- Vacuum-sealed quartz tube (100mm OD, 94mm ID, 1400mm length) included as standard.
- Stainless steel vacuum flanges equipped with vacuum gauge, valves, and internal hook ring for sample suspension.
- Heating elements made of Fe-Cr-Al alloy doped with molybdenum for durability and performance.
- Optional laptop and LabVIEW-based software available for remote control and data logging.
- Multiple fitting port options including standard barbed fittings and optional Swagelok® or KF25 adapters for gas supply and vacuum enhancement.
Technical Specifications
| Parameter | Specification |
|---|---|
| Furnace Casing | Double layer steel with air cooling, case temperature < 65°C |
| Power | 6 kW |
| Voltage | AC 208-240V, Single Phase, 50/60 Hz |
| Maximum Temperature | 1200°C (within 1 hour) |
| Continuous Temperature | 1100°C |
| Maximum Heating Rate | ≤ 20°C/min |
| Tube Dimensions | OD 100mm, ID 94mm, Length 1400mm (quartz tube included) |
| Heating Zones | 5 zones, each 200mm length; total 1000mm |
| Equal Temperature Zone | 650mm ±1°C when all zones set identically |
| Temperature Controller | MET certified, 30 programmable segments, PID auto-tune, ±1°C accuracy, 5 K-type thermocouples, RS485 port |
| Vacuum Seal | Two stainless steel flanges with vacuum gauge, valves, and internal hook ring |
| Vacuum Level | Approximately 0.1 torr (dependent on vacuum pump) |
| Heating Element | Fe-Cr-Al alloy doped with molybdenum |
| Compliance | CE certified; electrical components UL/MET/CSA certified |
Typical Applications
This furnace is suited for materials research involving rapid thermal cycling, such as quenching experiments, synthesis of nano-powders, and heat treatments requiring controlled atmospheres under vacuum or inert gases.
Configuration & Operating Notes
The standard package includes the quartz tube and stainless steel vacuum flanges with vacuum gauge and valves. Optional accessories include various tube sizes (1″, 2″, 3″, 80mm, 5″), laptop with LabVIEW-based control software for remote operation, and alternative fittings such as Swagelok® or KF25 adapters to enhance gas supply and vacuum performance.
Users should calibrate temperature prior to use for accurate control. The quartz tube is designed for vacuum or low-pressure operation below 0.2 bar and gas flow rates under 200 SCCM to minimize thermal shock. A two-stage pressure regulator is recommended to maintain safe gas pressures below 3 PSI.
