3200°C Laboratory Graphitization Furnace for Carbon Materials
The Laboratory Graphitization Furnace is an intermittent batch furnace designed for high-temperature graphitization, purification and heat treatment of carbon-based materials in laboratory, university, research institute and pilot R&D environments.
YuanHang standard laboratory graphitization furnace models are available with two common working zones: φ200 × 300 mm and φ280 × 400 mm. Other chamber sizes and loading structures can be customized according to the customer's material size, batch capacity and process requirements.
The furnace is designed for a maximum temperature of up to 3200°C, with a normal operating temperature of up to 3100°C for intermittent batch processing. It uses medium-frequency induction heating, PLC + touchscreen HMI control, vacuum pump-down, high-purity argon protection and water-cooled safety design.
Key Features
3200°C maximum design temperature
The furnace is designed for ultra-high-temperature carbon material processing, with a maximum design temperature of up to 3200°C and a normal operating temperature of up to 3100°C for intermittent batch operation.
Two standard laboratory working zones
Standard working zones include ?200 × 300 mm and ?280 × 400 mm. Customized chamber size, loading method and heating power can be provided for different sample forms and batch capacities.
Medium-frequency induction heating
Medium-frequency induction heating is used for efficient ultra-high-temperature graphitization. The heating system can be configured according to the working zone, target temperature, material load and process cycle.
Vacuum pump-down and argon atmosphere operation
The standard process is to pump the furnace chamber down to about 1000 Pa, then fill with high-purity argon and operate under slight positive pressure. This helps reduce oxygen content while avoiding unnecessary high-vacuum operation at ultra-high temperature.
PLC + touchscreen HMI control
PLC + touchscreen HMI is the standard control configuration. The system supports programmable temperature control, recipe management, alarm display, process monitoring and operator-friendly furnace operation.
Customized vacuum and atmosphere systems
If a customer requires a higher vacuum level, YuanHang can configure different vacuum pump groups, vacuum measurement systems, gas control systems and process interlocks according to the required temperature range and material characteristics.
Typical Applications
- Graphitization of lithium-ion battery anode materials
- High-temperature treatment of artificial graphite materials
- Carbon fiber and carbon fiber filament graphitization
- PI film and high thermal conductivity film graphitization
- Graphite powder purification and carbon material purification
- Graphene-related carbon material heat treatment
- Carbon/carbon composite and advanced carbon material R&D
- Small-batch graphitization tests before pilot or production equipment selection
Technical Specifications
The following specifications are for standard laboratory graphitization furnace selection. Final configuration should be confirmed according to the material, target temperature, working atmosphere, working zone and loading quantity.
| Item | Specification |
|---|---|
| Product Name | Laboratory Graphitization Furnace |
| Furnace Type | Intermittent batch furnace |
| Process Type | Graphitization, purification and high-temperature heat treatment of carbon materials |
| Maximum Design Temperature | Up to 3200°C |
| Normal Operating Temperature | Up to 3100°C for intermittent batch operation |
| Standard Working Zone | 200 mm diameter × 300 mm height / 280 mm diameter × 400 mm height |
| Customized Working Zone | Available according to material size and loading requirement |
| Heating Method | Medium-frequency induction heating |
| Standard Atmosphere Process | Pump down to about 1000 Pa, then fill with high-purity argon and operate under slight positive pressure |
| Vacuum Display Reference | Approximately -0.1 MPa on a common compound vacuum gauge after rough pump-down |
| Working Gas | High-purity argon as standard; nitrogen or other process gases subject to material and temperature confirmation |
| Control System | PLC + touchscreen HMI as standard |
| Temperature Measurement | Optical temperature measurement for high-temperature stages; lower-temperature measurement configuration according to process design |
| Cooling System | Water cooling system configured according to furnace power and site conditions |
| Safety Functions | Over-temperature, water flow, pressure, door status, power and process interlocks |
Atmosphere and Vacuum Recommendation
For ultra-high-temperature graphitization, vacuum level should be selected carefully. A higher vacuum is not always better at 3000°C-level processing. At very high temperatures and low pressure, graphite crucibles and carbon insulation materials may experience accelerated evaporation or sublimation, which can shorten hot-zone service life and affect process cleanliness.
For most laboratory graphitization processes, YuanHang recommends rough vacuum pump-down to reduce oxygen, followed by high-purity argon filling and slight positive pressure operation during high-temperature heating.
| Temperature Range | Recommended Atmosphere Strategy | Engineering Note |
|---|---|---|
| Below 1000°C | Vacuum pump-down or inert gas purge | Used for oxygen reduction, moisture removal and process preparation. |
| 1000–2000°C | Vacuum or inert atmosphere according to material requirement | Process should be selected based on material release behavior and contamination control. |
| 2000–2800°C | High-purity argon protection is generally recommended | Avoid unnecessary high-vacuum operation unless the process has been verified. |
| 2800–3100°C | High-purity argon slight positive pressure is recommended | This is the preferred strategy for many ultra-high-temperature carbon material processes. |
| Up to 3200°C | Engineering confirmation required | Final atmosphere, vacuum level and holding time should be confirmed according to material, crucible, insulation and service-life requirements. |
Optional Configurations
- Customized working zone size and loading structure
- Different vacuum pump groups according to required vacuum level
- Vacuum measurement system matched to process requirements
- Automatic gas inlet, exhaust and gas switching system
- Mass flow control for protective gas
- Closed-loop water cooling or external chiller matching
- Process data recording and export
- Remote monitoring interface
- Additional safety interlocks for water, pressure, temperature and power system
- Destination-market electrical design and documentation package
How to Choose the Right Furnace Configuration
Laboratory graphitization furnace selection should not be based only on maximum temperature. To prepare an accurate technical proposal, the following information is usually required:
- Material name and basic composition
- Sample form: powder, block, sheet, film, fiber or molded part
- Target temperature and holding time
- Required working atmosphere: argon, nitrogen, vacuum or other gas
- Working zone size and loading quantity per batch
- Heating rate, cooling requirement and process cycle
- Whether higher vacuum level or special gas control is required
- Whether process data recording or remote monitoring is required
- Destination country and site utility conditions
Frequently Asked Questions
What is a laboratory graphitization furnace used for?
It is used for high-temperature graphitization, purification and heat treatment of carbon-based materials in laboratory and R&D environments.
What are the standard working zone sizes?
YuanHang standard laboratory graphitization furnace models are available with ?200 × 300 mm and ?280 × 400 mm working zones. Other sizes can be customized.
What is the maximum design temperature?
The furnace is designed for a maximum temperature of up to 3200°C. For normal intermittent batch operation, the operating temperature can reach up to 3100°C according to process conditions.
Can the furnace operate under high vacuum?
Higher vacuum levels can be customized with suitable vacuum pump groups and vacuum measurement systems. However, for ultra-high-temperature graphitization, high vacuum is not always recommended because graphite crucibles and carbon insulation materials may evaporate or sublimate more easily at very high temperature and low pressure.
What is the standard atmosphere process?
The standard process is to pump the chamber down to about 1000 Pa, then fill with high-purity argon and operate under slight positive pressure during high-temperature heating.
What materials can be processed?
Typical materials include battery anode materials, artificial graphite, carbon fibers, PI films, graphite powders, graphene-related carbon materials and other advanced carbon materials.
Can the furnace be customized?
Yes. Chamber size, heating power, temperature range, vacuum level, gas control, cooling system, loading structure and documentation package can be customized.
Is PLC touchscreen control included?
Yes. PLC + touchscreen HMI is the standard control configuration for this laboratory graphitization furnace.
Request a Furnace Recommendation
YuanHang Industrial Furnace provides customized high-temperature furnace engineering for carbon materials, graphite materials, vacuum carbonization, graphitization, sintering and related thermal processing applications.
To receive a practical configuration recommendation, please send us your material, target temperature, atmosphere or vacuum requirement, working zone size, loading quantity and destination country.
Send your process requirements and our engineering team will help evaluate the suitable temperature, atmosphere, chamber size, vacuum configuration and control system.