OTF-1100X-III-VT Large Vertical Tube Furnace with 1200°C Max Temperature, 1000mm Heating Length, and Vacuum Flanges for Annealing and Sintering
The OTF-1100X-III-VT is engineered for advanced laboratory processes requiring precise high-temperature treatment of materials in a controlled atmosphere. Its vertical tube configuration accommodates large quartz tubes, enabling uniform heating for annealing, diffusion, and sintering applications. The furnace supports vacuum or low-pressure environments, essential for reducing contamination and enabling specialized material processing.
This model integrates three independently programmable heating zones spanning a total length of approximately 1000 mm, with a stable constant temperature zone of about 350 mm. The maximum operating temperature reaches 1200°C, controlled by Eurotherm controllers with high accuracy. The furnace includes vacuum sealing flanges and high-temperature silicon O-rings to maintain vacuum levels down to 10^-2 torr, facilitating processes under reduced pressure.
Wichtigste Merkmale
- Vertical tube furnace with a 12″ diameter heating chamber and double-layer steel casing with air cooling.
- Three heating zones totaling 1000 mm length, each independently controlled with ±0.1°C accuracy.
- Maximum temperature up to 1200°C with silicon carbide heating elements (36 pcs) and max heating/cooling rate of 10°C/min.
- Vacuum sealing system includes hinged stainless steel flanges, silicon O-rings, needle valves, and KF40 vacuum port with gauge.
- Supports 8″ or 11″ outer diameter quartz tubes, 71″ length, made from high purity quartz.
- Includes ceramic tube blocks to reduce heat radiation and improve energy efficiency.
- Equipped with Eurotherm controllers featuring RS485 digital communication and PC software for programming.
Technische Daten
| Parameter | Spezifikation |
|---|---|
| Modell | OTF-1100X-III-VT |
| Heizzonen | 3 zones (330 mm each), total ~1000 mm |
| Constant Temperature Zone Length | 350 mm (±3°C uniformity) |
| Maximaltemperatur | 1200°C |
| Heizelemente | 36 Silicon Carbide (SiC) elements |
| Heating/Cooling Rate | Bis zu 10 °C/min |
| Temperature Controllers | 3 Eurotherm controllers, ±0.1°C accuracy, RS485 communication, PC software included |
| Quartz Tube Options | 8″ or 11″ outer diameter, 71″ length, high purity quartz |
| Vacuum Flanges | Stainless steel hinged flanges with silicon O-rings, needle valves, KF40 port with vacuum gauge |
| Stromversorgung | Three phase 208V AC (50/60 Hz), optional 3 phase 380V, max 30 kW |
| Isolierung | Fibrous alumina liner with ceramic tube blocks |
| Kühlung | Air cooled double-layer steel casing |
Typische Anwendungsbereiche
Ideal for high-temperature annealing, sintering, and diffusion treatments of materials requiring controlled atmosphere and vacuum conditions. Commonly used in materials science research, semiconductor processing, and advanced ceramics manufacturing.
Hinweise zur Konfiguration und zum Betrieb
The furnace includes ceramic tube blocks that must be fully inserted before heating to minimize heat radiation and improve energy efficiency. Vacuum sealing flanges come with silicon O-rings and needle valves for controlled vacuum environments. A thermal couple insert port on the right flange facilitates temperature calibration.
Quartz tubes are fragile and must be handled carefully; warranty does not cover breakage. The furnace is designed for vacuum or low-pressure operation below 0.2 bar absolute pressure. Gas flow rates should be limited to under 200 SCCM to avoid thermal shock to the quartz tube. A two-stage pressure regulator is recommended for gas supply to maintain safe operating pressures below 3 PSI.
Optional accessories include a calibration kit with a K-type thermocouple and temperature calibrator, KF40 vacuum right-angle valve for easier pump connections, turbopumps for high vacuum down to 10^-5 torr, and quartz boats for sample handling. The furnace can be customized into a vertical configuration upon request.
