GSL-2800-GRF High-Temperature Graphitization Chamber Furnace with Graphite Heating Elements up to 2800°C and Vacuum Capability
The GSL-2800-GRF furnace is engineered for laboratory applications demanding graphitization at temperatures reaching 2800°C. It is particularly suited for processes requiring controlled atmospheres and precise thermal management, such as advanced material synthesis and treatment involving graphite-based samples.
This furnace incorporates a water-cooled vacuum chamber constructed from stainless steel 304, ensuring durability and thermal stability. The chamber’s interior is insulated with three to five layers of graphite felt, minimizing heat loss and maintaining uniform temperature distribution. The cylindrical graphite heating element provides an effective heating zone of 100 mm diameter by 260 mm length, accommodating samples up to 80 mm in diameter and 200 mm in length.
Key Features
- Maximum operating temperature of 2800°C with graphite heating elements.
- Water-cooled stainless steel vacuum chamber with inner dimensions Ø360 × 480 mm.
- Multi-layer graphite felt insulation for enhanced thermal efficiency.
- Motorized bottom-loading sample stage for convenient sample handling.
- Vacuum capability below 5e-3 torr after bakeout, measured by Inficon PGC554 Pirani gauge.
- Advanced temperature control using Eurotherm 3000 series with dual inputs and programmable PID loops.
- Dual temperature sensing: C-type thermocouple up to 1300°C and dual-color pyrometer from 1300°C to 2800°C.
- Remote monitoring and control via RS485 interface and compatible software.
Technical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | Standard 460-480 VAC, 3 phase, 50/60 Hz, 50 A; Optional 208-240 or 380-415 VAC, 3 phase, 50/60 Hz |
| Power Consumption | 35 kVA |
| Vacuum Chamber Material | Water-cooled stainless steel 304 |
| Chamber Inner Dimensions | Ø360 × 480 mm |
| Heating Element | Cylindrical graphite heater, effective area Ø100 × 260 mm |
| Maximum Sample Size | < Ø80 × 200 mm |
| Temperature Control | Eurotherm 3000 series controller with 28-segment programmable PID loop, dual inputs |
| Temperature Sensors | C-type thermocouple (RT-1300°C), dual-color pyrometer (1300-2800°C) |
| Temperature Uniformity | Estimated ±8°C within Ø80 × 120 mm |
| Temperature Stability | ±1°C |
| Vacuum Level | < 5e-3 torr after bakeout (vacuum pump not included) |
| Pressure Gauge | Inficon PGC554 Pirani capacitance diaphragm gauge, range 3.8E-5 to 1125 Torr |
| Cooling System | Water-cooled with inlet/outlet 1″ barbed fittings; cooling capacity >15 kW; flow rate >40 L/min |
| Gas Atmosphere Compatibility | Argon (RT-2800°C), 3% H2/97% Ar (<1500°C), 4% CH4/96% Ar (<2400°C), 5% NH3/95% Ar (<2400°C), vacuum conditions as specified |
Typical Applications
This furnace is ideal for high-temperature graphitization of carbon materials, synthesis of advanced ceramics, and research requiring controlled atmospheres at ultra-high temperatures. It supports processes such as thermal treatment, annealing, and material phase transformations under vacuum or inert/reducing gas environments.
Configuration & Operating Notes
The furnace requires an external vacuum pump and water chiller, which are not included. Adequate laboratory water supply is necessary to support the cooling system. Remote temperature control and monitoring are facilitated through an RS485 interface compatible with iTools software. Safety interlocks monitor water flow, pressure, and overtemperature conditions to protect the equipment during operation.
