OTF-1200X-S-HP-30A Compact High-Pressure Gas Tube Furnace with Nickel-Based Superalloy Vessel, Up to 1100°C
The OTF-1200X-S-HP-30A is engineered for precise high-pressure gas heat treatment and hot isostatic pressing (HIP) of advanced materials. It accommodates research workflows requiring controlled atmospheres—oxidizing or inert gases—at temperatures reaching 1100°C. This furnace is particularly suited for experiments demanding robust pressure containment combined with accurate temperature control.
Central to its design is a nickel-based superalloy pressure vessel, available in two standard sizes: 30 mm outer diameter with 12 mm inner diameter, or optionally 50 mm outer diameter with 20 mm inner diameter, both 580 mm in length. The vessel supports pressures up to 20 MPa at 800°C, with decreasing maximum pressures at higher temperatures as per the specified pressure-temperature limits. An automatic pressure relief system, including an analog-controlled solenoid valve rated to 15 MPa, ensures operational safety by releasing gas when preset pressure thresholds are exceeded.
Key Features
- Nickel-based superalloy (Waspaloy or equivalent) pressure vessel with 12 or 20 mm inner diameter options.
- Maximum operating temperature of 1100°C with precise digital temperature control and PID auto-tuning.
- Automatic pressure relief via a high-pressure solenoid valve integrated with a digital pressure monitor and alarm system.
- Double-layer steel casing with high-purity fibrous alumina insulation for energy efficiency.
- Includes laptop with preinstalled MTS-01 software for remote temperature and pressure monitoring and control.
- Compatible with oxygen and inert gases such as nitrogen, argon, and helium.
- Safety features include over-temperature protection, pressure alarms, and recommended use of crucibles and isolation foils to protect the vessel.
Technical Specifications
| Parameter | Specification |
|---|---|
| Maximum Temperature | 1100°C |
| Maximum Heating Rate | ≤10°C/min |
| Pressure Vessel Material | Nickel-based superalloy (Waspaloy or equivalent) |
| Standard Vessel Dimensions | 30 mm OD × 12 mm ID × 580 mm L |
| Optional Vessel Dimensions | 50 mm OD × 20 mm ID × 580 mm L |
| Maximum Vessel Pressure vs. Temperature | 20 MPa at 800°C; 12 MPa at 900°C; 6 MPa at 1000°C; 4 MPa at 1100°C |
| Power | 2.4 kW |
| Voltage | Standard: AC 208–240V, single phase, 50/60 Hz; Optional: AC 120V, 20A, single phase, 50/60 Hz |
| Temperature Control | Digital controller with 30 programmable segments, PID auto-tune, ±1°C accuracy, built-in Type K thermocouple |
| Pressure Monitoring | Pressure transducer up to 250 bar, digital monitor with adjustable alarm, solenoid valve relief up to 15 MPa |
| Heating Elements | Molybdenum-doped Fe-Cr-Al alloy |
| Heating Zone Length | 200 mm (single zone) |
| Temperature Uniformity | ±1°C within 50 mm; ±2°C within 70 mm |
Typical Applications
Ideal for compact hot isostatic pressing (HIP) research, advanced materials synthesis, and heat treatment under controlled high-pressure gas atmospheres. Suitable for hydroretorting of oil shale and other processes requiring precise temperature and pressure control in oxidizing or inert environments.
Configuration & Operating Notes
The furnace includes a split cover for easy pressure vessel replacement and aluminum heat sinks to maintain safe flange temperatures. Samples must be placed inside quartz or alumina crucibles, optionally wrapped in gold or nickel foil to prevent contamination and vessel degradation. Direct sample contact with the vessel is prohibited to avoid alloy reactions and vessel damage.
Safety precautions require setting high-pressure alarm thresholds before operation and gradual pressure increase using an external two-stage regulator (not included). The solenoid valve provides automatic pressure relief up to 15 MPa; for operations exceeding this, manual valve closure and separate pressure protection are necessary. Flange bolts should be tightened using a recommended torque wrench to prevent damage.
The system includes a laptop with preinstalled MTS-01 software for remote monitoring and control of temperature and pressure, with optional wireless control available. Compliance certifications include CE, with NRTL or CSA certification optionally available.
