OTF-1200X-HPR-III High-Pressure Rocking Tube Furnace with Ni-Based Superalloy Tube, Up to 1100°C and 40 Bar Pressure
The OTF-1200X-HPR-III is engineered for precise heat treatment of materials requiring controlled high-pressure gas environments combined with elevated temperatures up to 1100°C. This furnace is particularly suited for processing alloys or compounds that tend to evaporate easily under normal atmospheric conditions, ensuring stable treatment by maintaining an inert or oxygen atmosphere at high pressures.
Its core component is a Ni-based superalloy GH747 processing tube, designed to withstand temperatures up to 1100°C under pressure. The tube measures 60 mm outer diameter, 52 mm inner diameter, and 1000 mm length, supported by fibrous alumina thermal blocks to securely hold crucibles during operation. The furnace incorporates a rocking mechanism to enhance material uniformity during heat treatment.
Key Features
- Three independent heating zones, each 150 mm in length, totaling 450 mm with ±1°C temperature control accuracy.
- Maximum operating temperature of 1100°C for short durations, continuous operation up to 1000°C.
- Rocking stage driven by a 150W DC gear motor, adjustable rocking angle from -30º to +90º and frequency from 0.1 to 1 cycle per minute.
- Processing tube made from Ni-based superalloy GH747, suitable for high-pressure and high-temperature applications.
- Maximum working pressures vary with temperature: 40 bar at 800°C, decreasing to 8 bar at 1100°C.
- Advanced temperature control with three digital PID controllers, programmable with ramping, cooling, and dwelling steps.
- Gas handling system includes CF flanges with venting ports, copper O-rings, gas filter funnel, and cold trap for safe operation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | OTF-1200X-HPR-III |
| Heating Zones | 3 zones, each 150 mm (total 450 mm) |
| Constant Temperature Zone Length | 280 mm ±1°C |
| Max Temperature | 1100°C (short term), 1000°C continuous |
| Max Heating Rate | 10°C/min |
| Processing Tube Material | Ni-based superalloy GH747 |
| Processing Tube Dimensions | OD 60 mm × ID 52 mm × Length 1000 mm |
| Max Working Pressure | 40 bar at 800°C; 25 bar at 900°C; 12 bar at 1000°C; 8 bar at 1100°C |
| Rocking Angle | -30º to +90º |
| Rocking Frequency | 0.1 to 1 cycle per minute |
| Power Supply | AC 208-240V, 50/60Hz, 4.2 kW |
| Temperature Control | Three digital PID controllers with auto-tune and programmable segments |
| Gas Compatibility | Inert gases or oxygen only; no hydrogen or flammable gases |
| Flange Types | CF flanges with 1/4″ NPT venting port; options for high-pressure or constant pressure fixing |
Typical Applications
This furnace is ideal for high-pressure heat treatments in research and development of advanced alloys, ceramics, and compounds that require controlled atmospheres to prevent evaporation or oxidation. It supports processes such as alloy melting, sintering, and phase transformation studies under elevated pressure and temperature conditions.
Configuration & Operating Notes
The furnace includes a separated control panel for safe operation, featuring touch screen control of temperature, pressure, and gas flow. The standard setup includes fibrous alumina thermal blocks and stainless steel tubes to secure crucibles centrally within the processing tube. Optional upgrades include Eurotherm 3000 temperature controllers for enhanced accuracy. The system is CE certified, with additional certifications available at extra cost.
Only inert gases or oxygen should be used; hydrogen or flammable gases are prohibited. The gas outlet is equipped with a core funnel filter and cold trap to protect the system and maintain gas purity. Two flange fixing methods accommodate different pressure requirements, and copper O-rings are consumable parts available for replacement.
