GSL-1700X-S60HG High-Temperature Hydrogen Gas Tube Furnace with 60mm Alumina Tube and Integrated Hydrogen Detection
The GSL-1700X-S60HG is engineered for precise thermal processing of materials in a controlled hydrogen atmosphere, reaching temperatures as high as 1700°C for short durations. It is ideal for applications requiring a stable and safe environment for hydrogen gas treatments, including research and development in materials science and chemical processing.
This tube furnace incorporates a 60 mm outer diameter high-purity alumina tube, providing excellent thermal and chemical resistance. The system integrates a Honeywell UL-approved hydrogen gas detector linked to a solenoid valve that automatically shuts off hydrogen supply upon detecting hazardous concentrations, ensuring operational safety. The furnace is designed for installation under a suitable fume hood with appropriate gas handling protocols.
Key Features
- Maximum temperature of 1700°C (up to 1 hour) with continuous operation at 1600°C.
- 60 mm outer diameter alumina tube (95%+ purity), 800 mm length, with fibrous ceramic tube blocks to minimize heat loss.
- Integrated hydrogen gas detection system with automatic gas inlet shutoff at 20% LEL alarm threshold.
- Programmable temperature controller with 30 segments, PID control, and ±1°C accuracy.
- Double-layer steel casing with air cooling to keep surface temperature below 60°C.
- Vacuum-capable stainless steel flanges supporting up to 10^-5 torr vacuum and positive pressure up to 5 PSI (operating pressure limited to below 3 PSI).
- Float-type flowmeter for gas outlet flow control (16–160 mL/min) and safety lighter included for hydrogen exhaust ignition.
Technical Specifications
| Parameter | Specification |
|---|---|
| Maximum Temperature | 1700°C (less than 1 hour) |
| Continuous Operating Temperature | 1600°C |
| Heating Rate | Maximum ≤10°C/min; Recommended 5°C/min |
| Processing Tube | Alumina (Al2O3) ceramic, >95% purity; 51 mm inner diameter, 60 mm outer diameter, 800 mm length |
| Heating Zone Length | 125 mm |
| Constant Temperature Zone | 50 mm with ±2°C uniformity |
| Temperature Controller | MET-certified, PID control, SCR power control, 30 programmable segments, ±1°C accuracy |
| Power Supply | AC 208–240V, single phase, 50/60 Hz, 3 kW max power |
| Vacuum Flanges | Stainless steel, vacuum to 10^-5 torr, positive pressure up to 5 PSI (operating limit below 3 PSI) |
| Gas Inlet Control | Solenoid valve linked to hydrogen detector for automatic shutoff |
| Hydrogen Detector | Honeywell UL-approved Sensepoint, alarm at 20% LEL |
| Heating Elements | Super 1800-grade molybdenum disilicide (MoSi2), 30 × 270 mm |
| Gas Outlet Flowmeter | Float-type, 16–160 mL/min range |
Typical Applications
The furnace is suited for hydrogen atmosphere annealing, sintering, and reduction processes in materials research, semiconductor fabrication, and chemical synthesis. It supports inert gas and oxygen atmospheres for versatile thermal treatments.
Configuration & Operating Notes
The furnace requires installation under a certified fume hood with appropriate gas handling safety measures. A two-stage pressure regulator must limit gas supply pressure below 3 PSI. The included fibrous ceramic tube blocks must be fully inserted before heating to reduce heat radiation. Optional quartz tube blocks and additional tube supports are available for enhanced vacuum performance and mechanical stability. The hydrogen exhaust must be safely ignited using the supplied long-neck safety lighter following validated procedures. Optional advanced temperature controllers and software packages support remote monitoring and control.
