GCF1000-SS Large-Capacity Stainless Steel Vacuum Atmosphere Furnace

1000°C • Ø377 × 700 mm Chamber • Vacuum / Controlled Atmosphere • Touchscreen Programmable Control

The Across International GCF1000-SS is a large-capacity vacuum atmosphere furnace designed for high-temperature processing under vacuum or protective gas atmosphere.

Featuring a large Ø377 × 700 mm cylindrical chamber constructed from 310S high-temperature stainless steel, the GCF1000-SS provides substantial processing space for larger samples and batch applications. The 310S stainless steel chamber offers excellent high-temperature strength, corrosion resistance, and resistance to deformation during elevated-temperature operation.

The furnace combines four-sided resistance heating, dual K-type thermocouples, and programmable PID temperature control to provide stable and uniform heating throughout the large chamber. A touchscreen interface provides convenient control of multi-step heating programs and furnace operating parameters.

With a maximum temperature of 1000°C, rated operating temperature of 900°C, temperature control accuracy of ±1°C, and a complete vacuum and cooling system, the GCF1000-SS provides a versatile solution for research and pilot-scale thermal processing applications requiring controlled processing environments.

Key Features

• Large Ø377 × 700 mm cylindrical processing chamber
• 310S stainless steel chamber for high-temperature strength and corrosion resistance
• Maximum temperature up to 1000°C
• 900°C rated operating temperature
• Suitable for operation under vacuum or protective atmosphere
• Four-sided heating from the top, bottom, left and right sides for improved temperature distribution
• Dual K-type thermocouples for temperature monitoring
• ±1°C temperature control accuracy
• 15-segment programmable PID temperature control
• Convenient touchscreen control interface
• Maximum heating rate up to 20°C/min
• Recommended heating rate ≤15°C/min
• Rapid vacuum evacuation
• Automatic pressure relief valve
• Over-temperature and thermocouple-failure protection
• Power-failure recovery function
• Temperature auto-tuning
• Optional RS485 computer communication and data-logging software

Large 310S Stainless Steel Chamber

At the heart of the GCF1000-SS is its large Ø377 × 700 mm cylindrical processing chamber manufactured from 310S high-temperature stainless steel.

The material is selected for its high-temperature mechanical properties, corrosion resistance, and ability to retain adequate ductility and toughness at elevated temperatures. This helps reduce deformation of the chamber during high-temperature processing.

The large chamber makes the furnace particularly suitable where conventional laboratory furnaces do not provide sufficient processing volume.

Chamber Size: Ø377 × 700 mm

Chamber Material: 310S Stainless Steel

Maximum Temperature: 1000°C

Rated Temperature: 900°C

Vacuum & Controlled Atmosphere Operation

The GCF1000-SS is designed to perform thermal processing under either vacuum or protective atmosphere, providing greater flexibility for materials that require reduced exposure to air during heating.

According to the supplied specification, the vacuum system can reach approximately 0.1 Pa within 10 minutes under the specified operating conditions.

An integrated automatic pressure relief valve provides additional system protection. If the internal pressure exceeds the preset pressure level, the valve automatically releases pressure.

Four-Sided Heating

The furnace uses resistance heating arranged on four sides — top, bottom, left and right — to improve temperature distribution throughout the large processing chamber.

Dual K-type thermocouples provide temperature monitoring, while the programmable PID controller regulates the heating process.

This combination is particularly beneficial for a large-volume furnace where maintaining consistent heating throughout the chamber is important.

Touchscreen Programmable Temperature Control

The GCF1000-SS features a touchscreen-based programmable PID temperature controller designed for convenient operation and repeatable thermal processing.

The controller supports 15-segment programmable temperature profiles, allowing users to configure multi-step heating and holding processes.

Integrated control and protection functions include:

• 15-segment programmable PID control
• Temperature auto-tuning
• Over-temperature protection
• Thermocouple-failure protection
• Power-failure recovery
• Automatic heating circuit shutdown under abnormal temperature conditions
• Optional RS485 communication

If a power interruption occurs during operation, the controller is designed to resume the heating program based on the furnace temperature at the time of interruption rather than simply restarting the complete process from its initial temperature.

Optional Computer Monitoring & Data Logging

With the optional communication software, the furnace can be connected to a computer for additional process monitoring.

The system allows users to monitor:

• PV – Process Temperature
• SV – Set Temperature
• Furnace operating status
• Real-time heating curves
• Historical temperature data

Temperature curves can be displayed in real time, while process temperature data can be recorded and retrieved for later review and analysis.