OTF-1200X-III-HP-80 Three-Zone High-Pressure and High-Vacuum Tube Furnace with Nickel-Based Superalloy Tube
The OTF-1200X-III-HP-80 is engineered for precise thermal treatment of specialized compound materials requiring controlled atmospheres under high pressure or vacuum. Its design incorporates a split tube furnace with three independently regulated heating zones, enabling uniform temperature distribution and tailored thermal gradients across the 450 mm heating length.
This furnace accommodates processing temperatures up to 1100°C with pressure ratings varying by temperature, reaching up to 80 bar at 900°C and a maximum of 2.5 bar at 1100°C. The core processing vessel is fabricated from GH747 nickel-based superalloy, providing durability and chemical resistance suitable for inert gases and oxygen atmospheres. The vessel dimensions are 85 mm outer diameter, 50 mm inner diameter, and 1000 mm length, designed to hold samples within a crucible or isolation foil to prevent contamination and preserve vessel integrity.
Key Features
- Three independent heating zones (150 mm each) with ±1°C temperature control accuracy.
- Maximum operating temperature of 1100°C with controlled heating and cooling rates.
- High-pressure capability up to 80 bar at 900°C; pressure limits vary with temperature.
- GH747 nickel-based superalloy process vessel compatible with oxygen and inert gases.
- Equipped with three OMEGA Type K thermocouples for precise temperature monitoring.
- Pressure gauge and control valves with overpressure alarms and manual relief options.
- Includes CF-type flanges, copper O-ring gaskets, cooling fans, and mobile cart for installation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Furnace Type | Three-zone high-pressure and high-vacuum split tube furnace |
| Maximum Temperature | 1100°C (less than 1 hour), continuous ≤1000°C |
| Pressure Ratings | 200 bar at 650°C; 140 bar at 800°C; 80 bar at 900°C; 50 bar at 1000°C; 2.5 bar at 1100°C |
| Heating Zones | 3 zones, each 150 mm; total 450 mm; constant temperature zone 280 mm ±1°C |
| Heating Elements | Molybdenum-doped Fe-Cr-Al alloy |
| Thermocouples | Three OMEGA Type K, 3 mm diameter |
| Process Vessel Material | GH747 nickel-based superalloy |
| Process Vessel Dimensions | 85 mm OD × 50 mm ID × 1000 mm length |
| Compatible Gases | Oxygen and inert gases (N2, Ar, He); hydrogen and flammable gases prohibited |
| Pressure Control | Pressure gauge (0–25 MPa), control valve (0.2–15 MPa), manual relief valve |
| Power Supply | AC 208–240V, single phase, 50/60 Hz, 3.8 kW |
| Temperature Control | Three digital controllers, ±1°C accuracy, 30 programmable segments each |
Typical Applications
Ideal for heat treatment of advanced materials requiring precise atmosphere control under high pressure or vacuum, such as compound semiconductors, ceramics, and specialty alloys. Suitable for research and development in materials science, electronics, and chemical processing.
Configuration & Operating Notes
The furnace includes CF-type flanges with copper O-ring gaskets, cooling fans for flange temperature management, and a mobile cart for ease of installation. Use crucibles or isolation foils inside the process vessel to prevent sample contact with the vessel alloy and avoid contamination or damage. Hydrogen and other flammable gases are strictly prohibited. Optional accessories include vacuum pumps, gas flow control systems, torque wrenches, and high-pressure electrical feedthroughs for specialized measurements. Safety relief valves must be properly selected and preset according to operating temperature and pressure to ensure safe operation.
Dimensions & Shipping
| Product dimensions | 85 mm OD × 50 mm ID × 1000 mm L |
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