GSL1700X100 High-Temperature Tube Furnace with 18″ Heating Zone and 4″ OD Alumina Tube for Vacuum and Gas Atmospheres
The GSL1700X100 tube furnace is engineered for advanced material and chemical research requiring precise thermal processing under vacuum or controlled gas conditions. It is particularly suited for sintering new material samples, offering a maximum working temperature of 1700°C sustained for up to one hour. The furnace incorporates a high-purity alumina tube with a 4-inch outer diameter and a heating zone length of 457 mm (18 inches), providing uniform temperature distribution for sample processing.
This bench-top unit features a double-layer steel casing with integrated air cooling and two internal fans to maintain external surface temperatures below 60°C. The heating elements consist of eight super 1800ºC grade molybdenum disilicide (MoSi2) rods, each measuring 30 x 330 mm, ensuring rapid and stable heating. Temperature control is managed by a programmable digital controller with ±1°C accuracy, utilizing PID automatic control via silicon controlled rectifier (SCR) power modulation. The system supports up to 30 programmable segments for precise ramping, dwelling, and cooling profiles.
Key Features
- Maximum operating temperature of 1700°C with continuous operation between 800°C and 1600°C
- 18-inch (457 mm) heating zone with a 6-inch (150 mm) constant temperature zone
- High-purity alumina tube (101 mm OD x 92 mm ID x 1200 mm length) included, consumable and replaceable
- Double-layer steel casing with air cooling and internal fans to maintain safe external temperatures
- Programmable digital temperature controller with ±1°C accuracy and 30 programmable segments
- Vacuum sealing assembly with KF25 vacuum port, 1/4″ gas pipe adaptor, and sealing flanges with double silicone O-rings
- Standard fittings include two stainless steel needle valves and a dial vacuum gauge for immediate vacuum and gas control
Technical Specifications
| Parameter | Specification |
|---|---|
| Maximum Power | 7 kW |
| Voltage | Single Phase, 220V AC, 50/60 Hz (40 A breaker required) |
| Maximum Working Temperature | 1700°C (up to 1 hour) |
| Continuous Working Temperature Range | 800–1600°C |
| Heating/Cooling Rate | 10°C/min |
| Heating Zone Length | 457 mm (18″) |
| Constant Temperature Zone Length | 150 mm (6″) |
| Heating Elements | 8 pcs MoSi2 rods (30 x 330 mm), 1800°C grade |
| Temperature Controller | Programmable digital controller with PID and SCR power control, ±1°C accuracy |
| Tube Dimensions | 101 mm OD x 92 mm ID x 1200 mm length alumina tube |
| Vacuum Port | KF25 vacuum port with sealing flanges and double silicone O-rings |
| Vacuum Level | Limited by vacuum pump; 50 mtorr with mechanical pump, 10⁻⁵ torr with molecular pump (not included) |
| Included Accessories | One alumina tube, flanges set with sealing O-rings, B-type thermocouple, four alumina foam tube blocks, furnace handle hook |
Typical Applications
Ideal for sintering and heat treatment of advanced materials in research laboratories, including ceramics, metals, and composites. Suitable for processes requiring controlled atmospheres such as vacuum, inert, or reactive gases at high temperatures.
Configuration & Operating Notes
The furnace includes standard sealing flanges with double silicone O-rings and needle valves for gas and vacuum control. Optional accessories include KF25 vacuum adapters, digital vacuum gauges, flow meters, and PC control modules for enhanced operation and monitoring. Users should perform temperature calibration before use to ensure accuracy. The alumina tube is consumable and should be replaced as needed. Safe operation requires limiting gas flow rates below 200 ml/min and using a gas pressure regulator to avoid over-pressurizing the chamber. Vacuum operation is recommended up to 1500°C to maintain tube integrity.
